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Tech Guides - Security

59 Articles
article-image-pentest-tool-in-focus-metasploit
Savia Lobo
30 May 2018
5 min read
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Pentest tool in focus: Metasploit

Savia Lobo
30 May 2018
5 min read
Security over the web is of the highest priority these days as most of our transactions and storage takes place on the web. Our systems are ripe for cracking by hackers. Don’t believe me? check out the below video. How can we improve our security belts around our system? Metasploit is one solution cybersecurity professionals look at to tight-lock their security with no risk of intruders. Metasploit, an open source project, allows individuals or organizations to identify security vulnerabilities and develop a code using which network administrators can break into their own code and identify potential risks. They can then prioritize which vulnerabilities need to be addressed. The Metasploit project offers Penetration (pen) testing software Tools for automating the comparison of a program's vulnerability Anti-forensic and advanced evasion tools Some tools are also built-in the Metasploit framework. The Metasploit Framework  is a collection of tools, libraries, modules and so on. It is popular among cybersecurity professionals and ethical hackers to carry out penetration testing or hacking. They can use it to exploit vulnerabilities on a network and also make Trojans, backdoors, botnets, phishing and so on. You can check out our article on 12 common malware types you should know, to know about the different malware types. The Metasploit Framework is supported by various operating systems including, Linux, MAC-OS, Windows, Android and so on. One can use metasploit in both free and paid versions, where the free version(Metasploit Framework and Metasploit community)can be used to find out basic exploits. However, a full paid version(Metasploit Pro) is preferred as it allows one to carry out deep pen-tests and other advanced features. A paid version offers: Collects integrations via remote APIs Automate several tasks, which include smart exploitation, penetration testing reports, and much more. Infiltrates dynamic payloads to evade the top antivirus solutions Also, in order to use this hacking tool, one can make use of the different interfaces it offers. Metasploit Interfaces Msfconsole Msfconsole is one of the highly popular interfaces in the metasploit framework. Once you have a hang of this interface and its syntax, it will provide a coherent access to all the options within the Metasploit Framework. Some advantages of msfconsole include: With the msfconsole, one can access all the features in the MSF Most stable and provides a console-based interface With msfconsole executing external commands is possible One can experience a full readline support, tabbing, and command completion Msfcli Msfcli enables a powerful command-line interface to the framework. Some features of this interface include: Support for the launch of exploits and auxiliary modules. Great for use in scripts and basic automation. However, one should be careful while using msfcli as variables are case-sensitive, and are assigned using an equal to (=) sign. MsfGUI Msfgui is the GUI of the framework and a tool to carry out demonstrations to clients and management. The msfgui: provides a point-and-click interface for exploitation a GTK wizard-based interface for using the metasploit framework Armitage Developed by Raphael Mudge, Armitage, is an open source Java-based frontend GUI for the metasploit framework. Its primary aim is to assist security professionals to understand hacking, by getting to know the true potential of Metasploit. Advantages of using Metasploit One can automate each phase of penetration testing Metasploit allows pentesters and cyber professionals to automate all phases within the penetration test. This is because, the amount of time required to carry out a complete and thorough pen-test is huge. Metasploit automates tasks; right from selecting the appropriate exploit to streamline the evidence collection and reporting of the attack. Credentials can be gathered and reused Credentials are the keys to any network, and the biggest prize for a penetration tester. With metasploit, one can catalog and track user credentials for reporting. Professionals and hackers can also make use of these credentials across every system in the network using a simple credential domino wizard. Become a next-Level Pen Tester If one has already worked with Metasploit framework for years together, its pro version is definitely the next step to head for. With Metasploit Pro, the expert can easily move through a network using the pivoting and antivirus evasion capabilities. They can also create instant reports on the progress and evidence. The best part is, one can seamlessly use custom scripts by going into the command line framework. Metasploit in competition with other pentesting tools Metasploit is not the only tool that offers penetration testing but it is one of the preferred ones. There are a number of other tools in the market that can give Metasploit a tough competition. Some of them include Wireshark, Nessus, Nmap, and so on. Wireshark is a famous network protocol analyzer. It can read captured information from other applications and is multiplatform. The only con it has is, it has a steep learning curve. Nessus is a vulnerability scanner and a popular tool among the professionals in security. It has a huge library of vulnerabilities and respective tests to identify them. It relies on the response from the target host to identify a breach. Here, metasploit is used as an exploitation tool to identify if the detected breach could be exploitable. Nmap (Network mapper) is a highly competent pen testing tool used for network mapping or discovery. On comparing with metasploit, it has a rudimentary GUI as compared to Metasploit. Metasploit is moving into web application security with its 3.5.0 release. The community has also added native PHP and Java payloads, which makes it easy to acquire advanced functionality through web application and Java server vulnerabilities. The community plans to port more exploits and modules to the metasploit platform. Additional modules that target embedded devices, hardware devices, etc.and BUS systems, such as K-Line could be added in the near future. 5 pen testing rules of engagement: What to consider while performing Penetration testing How to secure a private cloud using IAM Top 5 penetration testing tools for ethical hackers
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Savia Lobo
05 Sep 2018
6 min read
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New cybersecurity threats posed by artificial intelligence

Savia Lobo
05 Sep 2018
6 min read
In 2017, the cybersecurity firm Darktrace reported a novel attack that used machine learning to observe and learn normal user behavior patterns inside a network. The malignant software began to mimic normal behavior thus blending it into the background and become difficult for security tools to spot. Many organizations are exploring the use of AI and machine learning to secure their systems against malware or cyber attacks. However, given their nature for self-learning, these AI systems have now reached a level where they can be trained to be a threat to systems i.e., go on the offensive. This brings us to a point where we should be aware of different threats that AI poses on cybersecurity and how we should be careful while dealing with it. What cybersecurity threats does AI pose? Hackers use AI as an effective weapon to intrude into organizations AI not only helps in defending against cyber attacks but can also facilitate cyber attacks. These AI-powered attacks can even bypass traditional means of countering attacks. Steve Grobman, chief technology officer at McAfee said, “AI, unfortunately, gives attackers the tools to get a much greater return on their investment.” A simple example where hackers are using AI to launch an attack is via spear phishing. AI systems with the help of machine learning models can easily mimic humans by crafting convincing fake messages. Using this art, hackers can use them to carry out increased phish attacks. Attackers can also use AI to create a malware for fooling sandboxes or programs that try to spot rogue code before it is deployed in companies' systems Machine learning poisoning Attackers can learn how the machine learning workflow processes function and once they spot any vulnerability, they can try to confuse these ML models. This is known as Machine learning poisoning. This process is simple. The attacker just needs to poison the data pool from which the algorithm is learning. Till date, we have trusted CNNs in areas such as image recognition and classification. Autonomous vehicles too use CNNs to interpret the street designs. The CNNs depend on training resources (which can come from cloud or third parties) to effectively function. Attackers can poison these sources by setting up backdoor images or via a man-in-the-middle attack where the attacker intercepts the data sent to the Cloud GPU service. Such cyber attacks are difficult to detect and can evade into the standard validation testing. Bot cyber-criminals We enjoy talking to chatbots without even realizing how much we are sharing with them. Also, chatbots can be programmed to keep up conversations with users in a way to sway them into revealing their personal or financial info, attachments and so on. A Facebook bot, in 2016, represented itself as a friend and tricked 10,000 Facebook users into installing a malware. Once the malware was compromised, it hijacked the victims’ Facebook account. AI-enabled botnets can exhaust human resources via online portals and phone support. Most of us using AI conversational bots such as Google Assistant or Amazon’s Alexa do not realize how much they know about us. Being an IoT driven tech, they have the ability to always listen, even the private conversations happening around them. Moreover, some chatbots are ill-equipped for secure data transmissions such as HTTPS protocols or Transport Level Authentication (TLA) and can be easily used by cybercriminals. Cybersecurity in the age of AI attacks As machine driven cyber threats are ever evolving, policymakers should closely work with technical researchers to investigate, prevent, and mitigate potential malicious uses of AI. Conducting deliberate red team exercises in the AI/cybersecurity domain similar to the DARPA Cyber Grand Challenge but across a wider range of attacks (e.g. including social engineering, and vulnerability exploitation beyond memory attacks). This will help to better understand the skill levels required to carry out certain attacks and defenses and to understand how well they work in practice. Disclosing AI zero-day vulnerabilities: These software vulnerabilities are the ones that have not been made publicly known (and thus defenders have zero days to prepare for an attack making use of them). It is good to disclose these vulnerabilities to affected parties before publishing widely about them, in order to provide an opportunity for a patch to be developed. Testing security tools: Software development and deployment tools have evolved to include an increasing array of security-related capabilities (testing, fuzzing, anomaly detection, etc.). Researchers can envision tools to test and improve the security of AI components and systems integrated with AI components during development and deployment so that they are less amenable to attack. Use of central access licensing model: This model has been adopted in the industry for AI-based services such as sentiment analysis and image recognition. It can also place limits on the malicious use of the underlying AI technologies. For instance, it can impose limitations on the speed of use, and prevent some large-scale harmful applications. It also contains certain terms and conditions that can explicitly prohibit the malicious use, thus allowing clear legal recourse. Using Deep Machine learning systems to detect patterns of abnormal activity. By using these patterns, AI and Machine learning can be trained to track information and deliver predictive analysis. Self- learning AI systems or reinforcement learning systems can be used to learn the behavioral pattern of the opponent AI systems and adapt themselves in a way to combat malicious intrusion. Transfer learning can be applied to any new AI system which is to be trained to defend against AI. Here, the system can be used to detect novel cyber attacks by training it on the knowledge or data obtained from other labelled and unlabelled data sets, which contain different types of attacks and feed the representation to a supervised classifier. Conclusion AI is being used by hackers on a large scale and can soon turn unstoppable given its potential for finding patterns, a key to finding systemic vulnerabilities. Cybersecurity is such a domain where the availability of data is vast; be it personal, financial, or public data, all of which is easily accessible. Hackers find ways and means to obtain this information secretly. This threat can quickly escalate as an advanced AI can easily educate itself, learn the ways adopted by hackers and can, in turn, come back with a much devastating way of hacking. Skepticism welcomes Germany’s DARPA-like cybersecurity agency – The federal agency tasked with creating cutting-edge defense technology 6 artificial intelligence cybersecurity tools you need to know Defending Democracy Program: How Microsoft is taking steps to curb increasing cybersecurity threats to democracy  
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Vijin Boricha
27 Apr 2018
5 min read
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Top 5 penetration testing tools for ethical hackers

Vijin Boricha
27 Apr 2018
5 min read
Software systems are vulnerable. That's down to a range of things, from the constant changes our software systems undergo, to the extent of the opportunities for criminals to take advantage of the gaps and vulnerabilities within these systems. Fortunately, penetration testers - or ethical hackers - are a vital line of defence. Yes, you need to properly understand the nature of cyber security threats before you take steps to tackle them, but penetration testing tools are the next step towards securing your software. There's famous saying from Stephane Nappo that sums up cyber security today: It takes 20 years to build a reputation and few minutes of cyber-incident to ruin it. So, make sure you have the right people with the right penetration testing tools to protect not only your software but your reputation too.  The most popular penetration testing tools Kali Linux Kali linux is a Linux distro designed for digital forensics and penetration testing. The predecessor of BackTrack, it has grown in adoption to become one of the most widely used penetration testing tools. Kali Linux is  based on debian - most of its packages are imported from Debian repositories. Kali includes more than 500 preinstalled penetration testing programs that makes it possible to exploit wired, wireless, and ARM devices. The recent release of Kali Linux 2018.1 supports Cloud penetration testing. Kali has collaborated with some of the planet's leading cloud platforms such as AWS and Azure, helping to change the way we approach cloud security. Metasploit Metasploit is another popular penetration testing framework. It was created in 2003 using Perl and was acquired by Rapid7 in 2009 by which time it was completely rewritten in Ruby. It is a collaboration of the open source community and Rapid 7 with the outcome being the Metasploit Project well known for its anti-forensic and evasion tools. Metasploit is a concept of ‘exploit’ which is a code that is capable of surpassing any security measures entering vulnerable systems. Once through the security firewalls, it runs as a ‘payload’, a code that performs operations on a target machine, as a result creating the ideal framework for penetration testing. Wireshark WireShark is one of the world’s primary network protocol analyzers also popular as a packet analyzer. It was initially released as Ethereal back in 1998 and due to some trademark issues was renamed to WireShark in 2006. Users usually use WireShark for network analysis, troubleshooting, and software and communication protocol development. Wireshark basically functions in the second to seventh layer of network protocols, and the analysis made is presented in a human readable form. Security Operations Center analysts and network forensics investigators use this protocol analysis technique to analyze the amount of bits and bytes flowing through a network. The easy to use functionalities and the fact that it is open source makes Wireshark one of the most popular packet analyzers for security professionals and network administrators who want to quickly earn money as freelancers. Burp Suite Threats to web applications have grown in recent years. Ransomware and cryptojacking have become increased techniques used by cybercriminals to attack users in the browser. Burp or Burp Suite is one widely used graphical tool for testing web application security. Since it's about application security there are two versions to this tool: a paid version that include all the functionalities and the free version that comes with few important functionalities. This tool comes preinstalled with basic functionalities that will help you with web application security checks. If you are looking at getting into web penetration testing this should definitely be your first choice as it works with Linux, Mac and Windows as well. Nmap Nmap also known as Network Mapper is a security scanner. As the name suggests it builds a map of the network to discover hosts and services on a computer network. Nmap follows a set of protocols to function where it sends a crafted packet to the target host and then analyses the responses. It was initially released in 1997 and since then it has provided a variety of features to detect vulnerabilities and network glitches. The major reason why one should opt for Nmap is that it is capable of adapting to network conditions like network delay and network congestion during a scan. To keep your environment protected from security threats you should take necessary measures. There are n number of penetration testing tools out there with exceptional capabilities. The most important thing would be to choose the necessary tool based on your environment’s requirement. You can pick and choose from the above mentioned tools as they are shortlisted taking into consideration the fact that they are effective, well supported and easy to understand and most importantly they are open-source. Learn some of the most important penetration testing tools in cyber security Kali Linux - An Ethical Hacker's Cookbook, Metasploit Penetration Testing Cookbook - Third Edition Network Analysis using Wireshark 2 Cookbook - Second Edition For a complete list of books and videos on this topic, check out our penetration testing products.
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Guest Contributor
03 Oct 2019
10 min read
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6 Tips to Prevent Social Engineering

Guest Contributor
03 Oct 2019
10 min read
Social engineering is a tactic where the attacker influences the victim to obtain valuable information. Office employees are targeted to reveal confidential data about a corporation while non-specialists can come under the radar to disclose their credit card information. One might also be threatened that the attacker will hack/his her system if he isn’t provided the asked material. In this method, the perpetrator can take any form of disguise, but at most times, he/she poses as tech support or from a bank. However, this isn’t the case always, although the objective is the same. They sniff the information, which you conceal from everybody, by gaining your trust. Social Engineering ends successfully when the wrongdoer gets to know the victim’s weaknesses and then manipulates his trust. Often, the victim shares his private information without paying much heed to the one who contacts him. Later, the victim is blackmailed by providing his sensitive data otherwise he will be charged under unlawful situations. Examples of Social Engineering attacks As defined above, the attacker can take any form of disguise, but the most common ways will be described here. The wrongdoers update themselves daily to penetrate your system, and even you should be extremely wary of your online security. Always stay alert whenever providing someone with your private credentials. The listed examples are variations of the others. There are many others as well, but the most common has been described. The purpose of all of them is to configure you. As the name states, Social Engineering merely is how an individual can be tricked to give up everything to the person who gains his trust. Phishing Attack Phishing is a malicious attempt to access a person’s personal and sensitive information such as financial credentials. The attacker behind a phishing attack pretends as an authentic identity or source to fool an individual. This social engineering technique mainly involves email spoofing or instant messaging to the victim. However, it may steer people to insert their sensitive details into a fraudulent website, which is designed to look exactly like a legitimate site. Unwanted tech support Tech support scams are becoming wide and can have an industry-wide effect. This tactic involves fraudulent attempts to scare people while putting them into the thought that there is something wrong with their device. Attackers behind this scam try to gain money by tricking an individual into paying for the issue which never exists. Offenders usually send you emails or call you to solve issues regarding your system. Mostly, they tell you that there’s an update needed. If you are not wary of this bogus, you can land yourself in danger. The attacker might ask you to run a command on your system which will result in it getting unresponsive. This belongs to the branch of social engineering known as scareware. Scareware uses fear and curiosity against humans to either steal information or sell you useless pieces of software. Sometimes it can be harsher and can keep your data as a hostage unless you pay a hefty amount. Clickbait Technique Term clickbait refers to the technique of trapping individuals via a fraudulent link with tempting headlines. Cybercriminals take advantage of the fact that most legitimate sites or contents also use a similar technique to attract readers or viewers. In this method, the attacker sends you enticing ads related to games, movies, etc. Clickbait is most seen during peer-to-peer networking systems with enticing ads. If you click on a certain Clickbait, an executable command or a suspicious virus can be installed on your system leading it to be hacked. Fake email from a trusted person Another tactic the offender utilizes is by sending you an email from your friend’s or relative’s email address claiming he/she is in danger. That email ID will be hacked, and with this perception, it’s most likely you will fall to this attack. The sent email will have the information you should give so that you can release your contact from the threat. Pretexting Attack Pretexting is also a common form of social engineering which is used for gaining sensitive and non-sensitive information. The attackers pretext themselves as an authentic entity so that they can access the user information. Unlike phishing, pretexting creates a false sense of trust with the victim through making stories, whereas, phishing scams involve fearing and urgency. In some cases, the attack could become intense, such as in the case when the attacker manipulates the victim to carry out a task which enables them to exploit the structural lacks of a firm or organization. An example of this is, the attacker masking himself as an employee from your bank to cross-check your credentials. This is by far, the most frequent tactic used by offenders. Sending content to download The attacker sends you files containing music, movies, games or documents that appear to be just fine. A newbie on the internet will think about how lucky his day is that he got his wanted stuff without asking. Little does he know that the files he just downloaded are virus embedded. Tips to Prevent Social Engineering After understanding the most common examples of social engineering, let us have a look at how you can protect yourself from being manipulated. 1) Don’t give up your private information Will you ever surrender your secret information to a person you don’t know? No, obviously. Therefore, do not spill your sensitive information on the web unnecessarily. If you do not identify the sender of the email, discard it. Nevertheless, if you are buying stuff online, only provide your credit card information over an HTTP secure protocol. When an unknown person calls or emails you, think before you submit your data. Attackers want you to speak first and realize later. Remain skeptical and converse over a conversation regarding when the other is digging into your sensitive information. Therefore, always think of the consequences if you submit your credentials to an authorized person. 2) Enable spam filter Most email service providers come up with spam filters. Any email that is deemed as suspicious shall automatically be thrown away in the spam folder. Credible email services detect any suspicious links and files that might be harmful and warn a user to download them at your own risk. Some files with specific extensions are barred from downloading. By enabling the spam feature, you can ease yourself from categorizing emails. Furthermore, you shall be relieved from the horrendous tasks of detecting mistrustful messages. The perpetrators of social engineering will have no door to reach you, and your sensitive data will be shielded from attackers. 3) Stay cautious of your password A pro tip for you is that you should never use the same password on the platforms you log onto. Keep no traces behind and delete all sessions after you are done with surfing and browsing. Utilize the social media wisely and stay cautious of people you tag and the information you provide since an attacker might loom there. This is necessary in case your social media account gets hacked, and you have the same password for different websites, your data can be breached up to the skin. You will get blackmailed to pay the ransom to prevent your details from being leaked over the internet. Perpetrators can get your passwords pretty quickly but what happens if you get infected with ransomware? All of your files will be encrypted, and you will be forced to pay the ransom with no data back guarantee which is why the best countermeasure against this attack is to prevent it from happening primarily. 4) Keep software up to date Always update your system’s software patch. Maintain the drivers and keep a close look on your network firewall. Stay alert when an unknown person connects to your Wifi network and update your antivirus according to it. Download content from legitimate sources only and be mindful of the dangers. Hacks often take place when the software the victim’s using is out of date. When vulnerabilities are exposed, offenders exploit the system and gain access to it. Regularly updating your software can safeguard you from a ton of dangers. Consequently, there are no backdoors left for hackers to abuse. 5) Pay attention to what you do online Think of the time that you got self-replicating files on your PC after you clicked on a particular ad. Don’t what that to happen again? Train yourself to not click on Clickbait and scam advertisements. Always know that most lotteries you find online are fake. Never provide your financial details there. Carefully inspect the URL of a website you land on. Most scammers make a copy of a website’s front page and change the link slightly. This is done with such efficiency, that the average eye cannot detect a change in the URL and the user opens the website and enters his credentials. Therefore, stay alert. 6) Remain Skeptical The solution to most problems is that one should remain skeptical online. Do not click on spam links, do not open suspicious emails. Furthermore, do not pay heed to messages stating that you have won a lottery or you have been granted a check of a thousand grand. Remain skeptical of the supreme pinnacle. With this strategy, a hacker will have no attraction of reaching you out since you aren’t paying attention to him. Most of the time, this tactic has helped many people from staying safe online and has never been intercepted by hackers digitally. Consequently, as you aren’t getting attracted to suspicious content, you will be saved from social engineering. Final Words All the tips described above summarize that you are doubting, is vital for your digital secrecy. As you are doubtful, of your online presence, you are entirely protected from online manipulation. Not even you, your credit card information and other necessary information will be shielded as well since you never mentioned it to anyone in the first place. All of this was achieved when you were doubtful of what’s occurring online. You inspected the links you visited and discarded suspicious emails, and thus you are secure. With these actions taken, you have prevented social engineering from occurring. Author Bio Peter Buttler is a Cybersecurity Journalist and Tech Reporter, Currently employed as a Senior Editor at PrivacyEnd. He contributes to a number of online publications, including Infosecurity-magazine, SC Magazine UK, Tripwire, Globalsign, and CSO Australia, among others. Peter, covers different topics related to Online Security, Big data, IoT and Artificial Intelligence. With more than seven years of IT experience, he also holds a Master’s degree in cybersecurity and technology. @peter_buttlr Researchers release a study into Bug Bounty Programs and Responsible Disclosure for ethical hacking in IoT How has ethical hacking benefited the software industry 10 times ethical hackers spotted a software vulnerability and averted a crisis
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Guest Contributor
25 Jun 2019
8 min read
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3 cybersecurity lessons for e-commerce website administrators

Guest Contributor
25 Jun 2019
8 min read
In large part, the security of an ecommerce company is the responsibility of its technical support team and ecommerce software vendors. In reality, cybercriminals often exploit the security illiteracy of the staff to hit a company. Of all the ecommerce team, web administrators are often targeted for hacker attacks as they control access to the admin panel with lots of sensitive data. Having broken into the admin panel, criminals can take over an online store, disrupt its operation, retrieve customer confidential data, steal credit card information, transfer payments to their own account, and do more harm to business owners and customers. Online retailers contribute to the security of their company greatly when they educate web administrators where security threats can come from and what measures they can take to prevent breaches. We have summarized some key lessons below. It’s time for a quick cybersecurity class! Lesson 1. Mind password policy Starting with the basis of cybersecurity, we will proceed to more sophisticated rules in the lessons that follow. The importance of secure password policy may seem obvious, it's still shocking how careless people can be with choosing a password. In e-commerce, web administrators set credentials for accessing the admin panel and they can “help” cybercriminals greatly if they neglect basic password rules. Never use similar or alike passwords to log into different systems. In general, sticking to the same patterns when creating passwords (for example, using a date of birth) is risky. Typically, people have a number of personal profiles in social networks and email services. If they use identical passwords to all of them, cybercriminals can steal credentials just to one social media profile to crack the others. If employees are that negligent about accessing corporate systems, they endanger the security of the company. Let’s outline the worst-case scenario. Criminals take advantage of the leaked database of 167 million LinkedIn accounts to hack a large online store. As soon as they see the password of its web administrator (the employment information is stated in the profile just for hackers’ convenience), they try to apply the password to get access to the admin panel. What luck! The way to break into this web store was too easy. Use strong and impersonalized passwords. We need to introduce the notion of doxing to fully explain the importance of this rule. Doxing is the process of collecting pieces of information from social accounts to ultimately create a virtual profile of a person. Cybercriminals engage doxing to crack a password to an ecommerce platform by using an admin’s personal information in it. Therefore, a strong password shouldn’t contain personal details (like dates, names, age, etc.) and must consist of eight or more characters featuring a mix of letters, numbers, and unique symbols. Lesson 2. Watch out for phishing attacks With the wealth of employment information people leave in social accounts, hackers hold all the cards for implementing targeted, rather than bulk, phishing attacks. When planning a malicious attack on an ecommerce business, criminals can search for profiles of employees, check their position and responsibilities, and conclude what company information they have access to. In such an easy way, hackers get to know a web store administrator and follow with a series of phishing attacks. Here are two possible scenarios of attacks: When hackers target a personal computer. Having found a LinkedIn profile of a web administrator and got a personal email, hackers can bombard them with disguised messages, for example, from bank or tax authorities. If the admin lets their guard down and clicks a malicious link, malware installs itself on their personal computer. Should they remotely log in the admin panel, hackers steal their credentials and immediately set a new password. From this moment, they take over the control over a web store. Hackers can also go a different way. They target a personal email of the web administrator with a phishing attack and succeed in taking it over. Let’s say they have already found out a URL to the admin panel by that time. All they have to do now is to request to change the password to the panel, click the confirmation link from the admin’s email and set a new password. In the described scenario, the web administrator has made three security mistakes of using a personal email for work purposes, not changing the default admin URL, and taking the bait of a phishing email. When hackers target a work computer. Here is how a cyberattack may unfold if web administrators have been reckless to disclose a work email online. This time, hackers create a targeted malicious email related to work activities. Let’s say, the admin can get a legitimate-looking email from FedEx informing about delivery problems. Not alarmed, they open the email, click the link to know the details, and compromise the security of the web store by giving away the credentials to the admin panel to hackers. The main mistake in dealing with phishing attacks is to expect a fraudulent email to look suspicious. However, phishers falsify emails from real companies so it can be easy to fall into the trap. Here are recommendations for ecommerce web administrators to follow: Don’t use personal emails to log in to the admin panel. Don’t make your work email publicly available. Don’t use work email for personal purposes (e.g., for registration in social networks). Watch out for links and downloads in emails. Always hover over the link prior to click it – in malicious emails, the destination URL doesn’t match the expected destination website. Remember that legitimate companies never ask for your credentials, credit card details or any other sensitive information in emails. Be wary of emails with urgent notifications and deadlines – hackers often try to allay suspicions by provoking anxiety and panic among their victims. Engage two-step verification for an ecommerce admin panel. Lesson 3.  Stay alert while communicating with a hosting provider Web administrators of companies that have chosen a hosted ecommerce platform for their e-shop will need to contact the technical support of their hosting provider now and then. Here, a cybersecurity threat comes unexpected. If hackers have compromised the security of the web hosting company, they can target its clients (e-commerce websites) as well. Admins are in serious danger if the hosting company stores their credentials unencrypted. In this case, hackers can get direct access to the admin panel of a web store. Otherwise, more sophisticated attacks are developed. Cybercriminals can mislead web administrators by speaking for tech support agents. When communicating with their hosting provider, web administrators should mind several rules to protect their confidential data and the web store from hacking. Use unique email and password to log in your web hosting account. The usage of similar credentials for different work services or systems leads to a company security breach in case the hosting company has been hacked. Never reveal any credentials on request of tech support agents. Having shared their password to the admin panel, web administrators can no longer authenticate themselves by using it. Track your company communication with tech support. Web administrators can set email notifications to track requests from team members to the tech support and control what information is shared. Time for an exam As a rule, ecommerce software vendors and retailers do their best for the security of ecommerce businesses. Thus, software vendors take the major role in providing for the security of SaaS ecommerce solutions (like Shopify or Salesforce Commerce Cloud), including the security of servers, databases and the application itself. In IaaS solutions (like Magento), retailers need to put more effort in maintaining the security of the environment and system, staying current on security updates, conducting regular audits and more (you can see the full list of Magento security measures as an example). Still, cybercriminals often target company employees to hack an online store. Retailers are responsible for educating their team what security rules are compulsory to follow and how to identify malicious intents. In our article, we have outlined the fundamental security lessons for web administrators to learn in order to protect a web store against illicit access. In short, they should be careful with personal information they publish online (in their social media profiles) and use unique credentials for different services and systems. There are no grades in our lessons – rather an admin’s contribution to the security of their company can become the evaluation of knowledge they have gained. About the Author Tanya Yablonskaya is Ecommerce Industry Analyst at ScienceSoft, an IT consulting and software development company headquartered in McKinney, Texas. After 2+ years of exploring the cryptocurrency and blockchain sphere, she has shifted the focus of interest to ecommerce industry. Delving into this enormous world, Tanya covers key challenges online retailers face and unveils a wealth of tools they can use to outpace competitors. The US launched a cyber attack on Iran to disable its rocket launch systems; Iran calls it unsuccessful All Docker versions are now vulnerable to a symlink race attack 12,000+ unsecured MongoDB databases deleted by Unistellar attackers
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Savia Lobo
23 May 2018
7 min read
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Anatomy of a Crypto Ransomware

Savia Lobo
23 May 2018
7 min read
Crypto ransomware is the worst threat at present. There are a lot of variants in crypto ransomware. Only some make it into the limelight, while others fade away. In this article, you will get to know about Crypto Ransomware and how one can code it easily in order to encrypt certain directories and important files. The reason for a possible increase in the use of crypto ransomware could be because coding it is quite easy compared to other malware. The malware just needs to browse through user directories to find relevant files that are likely to be personal and encrypt them. The malware author need not write complex code, such as writing hooks to steal data. Most crypto ransomwares don't care about hiding in the system, so most do not have rootkit components either. They only need to execute on the system once to encrypt all files. Some crypto ransomwares also check to see whether the system is already infected by other crypto ransomware. There is a huge list of crypto ransomware. Here are a few of them: Locky Cerber CryptoLocker Petya This article is an excerpt taken from the book, 'Preventing Ransomware' written by Abhijit Mohanta, Mounir Hahad, and Kumaraguru Velmurugan.  How does crypto ransomware work? Crypto ransomware technically does the following things: Finds files on the local system. On a Windows machine, it can use the FindFirstFile(), FindNextFile() APIs to enumerate files directories. A lot of ransomware also search for files present on shared drives It next checks for the file extension that it needs to encrypt. Most have a hardcoded list of file extensions that the ransomware should encrypt. Even if it encrypts executables, it should not encrypt any of the system executables. It makes sure that you should not be able to restore the files from backup by deleting the backup. Sometimes, this is done by using the vssadmin tool. A lot of crypto ransomwares use the vssadmin command, provided by Windows to delete shadow copies. Shadow copies are backups of files and volumes. The vssadmin (vss administration) tool is used to manage shadow copies. VSS in is the abbreviation of volume shadow copy also termed as Volume Snapshot Service. The following is a screenshot of the vssadmin tool: After encrypting the files ransomware leaves a note for the victim. It is often termed a ransom note and is a message from the ransomware to the victim. It usually informs the victim that the files on his system have been encrypted and to decrypt them, he needs to pay a ransom. The ransom note instructs the victim on how to pay the ransom. The ransomware uses a few cryptographic techniques to encrypt files, communicate with the C&C server, and so on. We will explain this in an example in the next section. But before that, it's important to take a look at the basics of cryptography. Overview of cryptography A lot of cryptographic algorithms are used by malware today. Cryptography is a huge subject in itself and this section just gives a brief overview of cryptography. Malware can use cryptography for the following purposes: To obfuscate its own code so that antivirus or security researchers cannot identify the actual code easily. To communicate with its own C&C server, sometimes to send hidden commands across the network and sometimes to infiltrate and steal data To encrypt the files on the victim machine A cryptographic system can have the following components: Plaintext Encryption key Ciphertext, which is the encrypted text Encryption algorithm, also called cipher Decryption algorithm There are two types of cryptographic algorithms based on the kind of key used: Symmetric Asymmetric A few assumptions before explaining the algorithm: the sender is the person who sends the data after encrypting it and the receiver is the person who decrypts the data with a key. Symmetric key In symmetric key encryption, the same key is used by both sender and receiver, which is also called the secret key. The sender uses the key to encrypt the data while the receiver uses the same key to decrypt. The following algorithms use a symmetric key: RC4 AES DES 3DES BlowFish Asymmetric key A symmetric key is simpler to implement but it faces the problem of exchanging the keys in a secure manner. A public or asymmetric key has overcome the problem of key exchange by using a pair of keys: public and private. A public key can be distributed in an unsecured manner, while the private key is always kept with the owner secretly. Any one of the keys can be used to encrypt and the other can be used to decrypt: Here, the most popular algorithms are: RSA Diffie Hellman ECC DSA Secure protocols such as SSH have been implemented using public keys. How does ransomware use cryptography? Crypto ransomware started with simple symmetric key cryptography. But soon, researchers could decode these keys easily. So, they started using an asymmetric key. Ransomware of the current generation has started using both symmetric and asymmetric keys in a smart manner. CryptoLocker is known to use both a symmetric key and an asymmetric key. Here is the encryption process used by CryptoLocker: When CryptoLocker infects a machine, it connects to its C&C and requests a public key. An RSA public and secret key pair is generated for that particular victim machine. The public key is sent to the victim machine but the secret key or private key is retained with the C&C server. The ransomware on the victim machine generates an AES symmetric key, which is used to encrypt files. After encrypting a file with AES key, CryptoLocker encrypts the AES key with the RSA public key obtained from C&C server. The encrypted AES key along with the encrypted file contents are written back to the original file in a specific format. So, in order to get the contents back, we need to decrypt the encrypted AES key, which can only be done using the private key present in the C&C server. This makes decryption close to impossible. Analyzing crypto ransomware The malware tools and concepts remain the same here too. Here are few observations while analyzing, specific to crypto ransomwares, that are different compared to other malware. Usually, crypto ransomware, if executed, does a large number of file modifications. You can see the changes in the filemon or procmon tools from Sysinternals File extensions are changed in a lot of cases. In this case, it is changed to .scl. The extension will vary with different crypto ransomware. A lot of the time, a file with a ransom note is present on the system. The following image shows a file with a ransom note: Ransom notes are different for different kinds of ransomware. Ransom notes can be in HTML, PDF, or text files. The ransom note's file usually has decrypt instructions in the filename. Prevention and removal techniques for crypto ransomware In this case, prevention is better than cure. It's hard to decrypt the encrypted files in most cases. Security vendors came up with decryption tool to decrypt the ransomware encrypted files. There was a large increase in the number of ransomware and an increase in complexity of the encryption algorithms used by them. Hence, the decryption tools created by the ransomware vendors failed to cope sometimes. http://www.thewindowsclub.com/list-ransomware-decryptor-tools gives you a list of tools meant to decrypt ransomware encrypted files. These tools may not work in all cases of ransomware encryption. If you've enjoyed reading this post, do check out  'Preventing Ransomware' to have an end-to-end knowledge of the trending malware in the tech industry at present. Top 5 cloud security threats to look out for in 2018 How cybersecurity can help us secure cyberspace Cryptojacking is a growing cybersecurity threat, report warns
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Fatema Patrawala
27 Sep 2019
8 min read
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How has ethical hacking benefited the software industry

Fatema Patrawala
27 Sep 2019
8 min read
In an online world infested with hackers, we need more ethical hackers. But all around the world, hackers have long been portrayed by the media and pop culture as the bad guys. Society is taught to see them as cyber-criminals and outliers who seek to destroy systems, steal data, and take down anything that gets in their way. There is no shortage of news, stories, movies, and television shows that outright villainize the hacker. From the 1995 movie Hackers, to the more recent Blackhat, hackers are often portrayed as outsiders who use their computer skills to inflict harm and commit crime. Read this: Did you know hackers could hijack aeroplane systems by spoofing radio signals? While there have been real-world, damaging events created by cyber-criminals that serve as the inspiration for this negative messaging, it is important to understand that this is only one side of the story. The truth is that while there are plenty of criminals with top-notch hacking and coding skills, there is also a growing and largely overlooked community of ethical (commonly known as white-hat) hackers who work endlessly to help make the online world a better and safer place. To put it lightly, these folks use their cyber superpowers for good, not evil. For example, Linus Torvalds, the creator of Linux was a hacker, as was Tim Berners-Lee, the man behind the World Wide Web. The list is long for the same reason the list of hackers turned coders is long – they all saw better ways of doing things. What is ethical hacking? According to the EC-Council, an ethical hacker is “an individual who is usually employed with an organization and who can be trusted to undertake an attempt to penetrate networks and/or computer systems using the same methods and techniques as a malicious hacker.” Listen: We discuss what it means to be a hacker with Adrian Pruteanu [Podcast] The role of an ethical hacker is important since the bad guys will always be there, trying to find cracks, backdoors, and other secret ways to access data they shouldn’t. Ethical hackers not only help expose flaws in systems, but they assist in repairing them before criminals even have a shot at exploiting said vulnerabilities. They are an essential part of the cybersecurity ecosystem and can often unearth serious unknown vulnerabilities in systems better than any security solution ever could. Certified ethical hackers make an average annual income of $99,000, according to Indeed.com. The average starting salary for a certified ethical hacker is $95,000, according to EC-Council senior director Steven Graham. Ways ethical hacking benefits the software industry Nowadays, ethical hacking has become increasingly mainstream and multinational tech giants like Google, Facebook, Microsoft, Mozilla, IBM, etc employ hackers or teams of hackers in order to keep their systems secure. And as a result of the success hackers have shown at discovering critical vulnerabilities, in the last year itself there has been a 26% increase in organizations running bug bounty programs, where they bolster their security defenses with hackers. Other than this there are a number of benefits that ethical hacking has provided to organizations majorly in the software industry. Carry out adequate preventive measures to avoid systems security breach An ethical hacker takes preventive measures to avoid security breaches, for example, they use port scanning tools like Nmap or Nessus to scan one’s own systems and find open ports. The vulnerabilities with each of the ports is studied, and remedial measures are taken by them. An ethical hacker will examine patch installations and make sure that they cannot be exploited. They also engage in social engineering concepts like dumpster diving—rummaging through trash bins for passwords, charts, sticky notes, or anything with crucial information that can be used to generate an attack. They also attempt to evade IDS (Intrusion Detection Systems), IPS (Intrusion Prevention systems), honeypots, and firewalls. They carry out actions like bypassing and cracking wireless encryption, and hijacking web servers and web applications. Perform penetration tests on networks at regular intervals One of the best ways to prevent illegal hacking is to test the network for weak links on a regular basis. Ethical hackers help clean and update systems by discovering new vulnerabilities on an on-going basis. Going a step ahead, ethical hackers also explore the scope of damage that can occur due to the identified vulnerability. This particular process is known as pen testing, which is used to identify network vulnerabilities that an attacker can target. There are many methods of pen testing. The organization may use different methods depending on its requirements. Any of the below pen testing methods can be carried out by an ethical hacker: Targeted testing which involves the organization's people and the hacker. The organization staff will be aware of the hacking being performed. External testing penetrates all externally exposed systems such as web servers and DNS. Internal testing uncovers vulnerabilities open to internal users with access privileges. Blind testing simulates real attacks from hackers. Testers are given limited information about the target, which requires them to perform reconnaissance prior to the attack. Pen testing is the strongest case for hiring ethical hackers. Ethical hackers have built computers and programs for software industry Going back to the early days of the personal computer, many of the members in the Silicon Valley would have been considered hackers in modern terms, that they pulled things apart and put them back together in new and interesting ways. This desire to explore systems and networks to find how it worked made many of the proto-hackers more knowledgeable about the different technologies and it can be safeguarded from malicious attacks. Just as many of the early computer enthusiasts turned out to be great at designing new computers and programs, many people who identify themselves as hackers are also amazing programmers. This trend of the hacker as the innovator has continued with the open-source software movement. Much of the open-source code is produced, tested and improved by hackers – usually during collaborative computer programming events, which are affectionately referred to as "hackathons." Even if you never touch a piece of open-source software, you still benefit from the elegant solutions that hackers come up with that inspire or are outright copied by proprietary software companies. Ethical hackers help safeguard customer information by preventing data breaches The personal information of consumers is the new oil of the digital world. Everything runs on data. But while businesses that collect and process consumer data have become increasingly valuable and powerful, recent events prove that even the world’s biggest brands are vulnerable when they violate their customers’ trust. Hence, it is of utmost importance for software businesses to gain the trust of customers by ensuring the security of their data. With high-profile data breaches seemingly in the news every day, “protecting businesses from hackers” has traditionally dominated the data privacy conversation. Read this: StockX confirms a data breach impacting 6.8 million customers In such a scenario, ethical hackers will prepare you for the worst, they will work in conjunction with the IT-response plan to ensure data security and in patching breaches when they do happen. Otherwise, you risk a disjointed, inconsistent and delayed response to issues or crises. It is also imperative to align how your organization will communicate with stakeholders. This will reduce the need for real-time decision-making in an actual crisis, as well as help limit inappropriate responses. They may also help in running a cybersecurity crisis simulation to identify flaws and gaps in your process, and better prepare your teams for such a pressure-cooker situation when it hits. Information security plan to create security awareness at all levels No matter how large or small your company is, you need to have a plan to ensure the security of your information assets. Such a plan is called a security program which is framed by information security professionals. Primarily the IT security team devises the security program but if done in coordination with the ethical hackers, they can provide the framework for keeping the company at a desired security level. Additionally by assessing the risks the company faces, they can decide how to mitigate them, and plan for how to keep the program and security practices up to date. To summarize… Many white hat hackers, gray hat and reformed black hat hackers have made significant contributions to the advancement of technology and the internet. In truth, hackers are almost in the same situation as motorcycle enthusiasts in that the existence of a few motorcycle gangs with real criminal operations tarnishes the image of the entire subculture. You don’t need to go out and hug the next hacker you meet, but it might be worth remembering that the word hacker doesn’t equal criminal, at least not all the time. Our online ecosystem is made safer, better and more robust by ethical hackers. As Keren Elazari, an ethical hacker herself, put it: “We need hackers, and in fact, they just might be the immune system for the information age. Sometimes they make us sick, but they also find those hidden threats in our world, and they make us fix it.” 3 cybersecurity lessons for e-commerce website administrators Hackers steal bitcoins worth $41M from Binance exchange in a single go! A security issue in the net/http library of the Go language affects all versions and all components of Kubernetes
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Guest Contributor
26 Jan 2019
7 min read
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How to protect your VPN from Data Leaks

Guest Contributor
26 Jan 2019
7 min read
The following news story was reported by the Nine Network just a week after New Year's Day: an English teacher from Sydney was surprised when she found that her Facebook account was changing in strange ways. Jennifer Howell first noticed that her profile photo had changed, thus prompting her to change her password; however, she was abruptly logged out and locked out of her account upon attempting to do so. Later, she noticed that her profile had been hijacked by someone from the Middle East for the purpose of spreading radical propaganda. Nine Network journalists tracked down another Facebook user in Melbourne whose account had been similarly hijacked by hackers in the Middle East, and the goal was essentially the same. Even though both cases were reported to the Australian Cybercrime Online Reporting Network, nothing could be done about the hijacking, which may have been facilitated by password sniffing over unsecured connections. The Need for VPN Protection [Image courtesy of CNET.com] Seeing such worrisome reports about hacking is prompting many people to use virtual private networking (VPN) technology to secure their internet connections; however, these connections must be checked for potential leaks or they could be a waste of money. In essence, VPN connections protect online privacy by creating a secure tunnel between the client (who typically uses a personal computing device to connect to the internet) and the internet. A reliable VPN connection masks the user's geographical location by means of providing a different internet protocol (IP) address, which is the calling card of every online connection. Moreover, these connections encrypt data transmitted during sessions and provide a form of anonymous browsing. Like with almost all internet tools, VPN connections can also be subjected to certain vulnerabilities that weaken their reliability. Data leaks are a concern amongst information security researchers who focus on VPN technology, and they have identified the following issues: WebRTC Leaks Web Real-Time Communication (WebRTC) is an evolution of the Voice over Internet Protocol (VoIP) for online communications. VoIP is the technology that powers popular mobile apps such as Skype and WhatsApp; it has also replaced the legacy PBX telephone systems at many businesses. Let's say a company is looking to hire a new personnel. With WebRTC enabled on their end, they can direct applicants to a website they can access on their desktop, laptop, tablet, or smartphone to conduct job interviews without having to install Skype. The problem with WebRTC is that it can leak the IP address of users even when a VPN connection is established. DNS Hijacking The hijacking of domain name system (DNS) servers is an old malicious hacking strategy that has been appropriated by authoritarian regimes to enact internet censorship. The biggest DNS hijacking operation in the world is conducted by Chinese telecom regulators through the Great Firewall, which restricts access to certain websites and internet services. DNS hijacking is a broad name for a series of attacks on DNS servers, a common one involves taking over a router, server or even an internet connection for the purpose of redirecting traffic. In other words, hackers can impersonate websites, so that when you intend to check ABC News you will instead be directed to a page that resembles it, but in reality has been coded to steal passwords, compromise your identity or install malware. Some attacks are even more sophisticated than others. There is a connection between WebRTC and DNS hijacking: a malware attack known as DNS changer that can be injected into a system by means of JavaScript execution followed by a WebRTC call that you will not be aware of. This call can be used to determine your IP address even if you have connected through a VPN. This attack may be enhanced by a change of your DNS settings for the purpose of enlisting your computer or mobile device into a botnet to distribute spam, launch denial-of-service attacks or simply hijack your system without your knowledge. Testing for Leaks [Image courtesy of HowToGeek.com] In addition to WebRTC leaks and DNS queries, there are a few other ways your VPN can betray you: public IP address, torrents, and geolocation. The easiest way to assess if you’ve got a leakage is to visit IPLeak.net with your VPN turned off. Let this nifty site work its magic and make note of the information it offers. Leave the site, then turn your VPN on, and repeat the tests. Now compare the results. The torrents and geolocation tests are interesting but probably not as useful or as likely a culprit as the DNS. Your device navigates the internet by communicating with DNS servers that translate web URLs into numeric IP addresses. Most of the time, you’ll have defaulted through your ISP servers, which often leak like cheesecloth. The bad news is that, even with a VPN in place, leakage through your local servers can give up your physical location to spying eyes. To combat this, VPN services route their customers through servers separate from their ISP. Now that you’ve proven your data is leaking, what can you do about it? Preventing Leaks and Choosing the Right VPN Something you can do even before installing a VPN solution is to disable WebRTC in your browser. Some developers have already made this a default configuration, but many still ship with this option enabled. If you search for "WebRTC" within the help file of your browser, you may be able to find instructions on how to modify the flags or .config file. However, proceed with caution. Take the time to read and understand reliable guides such as this one from security researcher Paolo Stagno. Here are other preventative measures: When configuring your VPN, go with the servers it suggests, which will likely not be those of your ISP but rather servers maintained by the VPN company. Not all VPN companies have their own servers, so be aware of that when considering your options.  Be aware that the internet is transitioning its IP address naming system from IPv4 to IPv6. Without diving too deep into this topic, just be aware that if your VPN has not upgraded its protocols, then any site with a new IPv6 address will leak. Look for a VPN service compatible with the new format.  Make sure your VPN uses the newest version of the OpenVPN protocol.  Windows 10 has an almost impossible to change default setting that chooses the fastest DNS server, resulting in the chance it might ignore your VPN server and revert back to the ISP. The OpenVPN plugin is a good way to fight this. Final Thoughts In the end, using a leaky VPN defeats the security purpose of tunneled connections. It is certainly worth your while to evaluate VPN products, read their guides and learn to secure your system against accidental leaks. Keep in mind this is not a ‘set it and forget it’ problem. You should check for leakage periodically to make sure nothing has changed with your system. The winds of change blow constantly online and what worked yesterday might not work tomorrow. As a final suggestion, make sure the VPN you use has a kill-switch feature that breaks your connection in the event it detects a data leak. Author Bio Gary Stevens is a front-end developer. He’s a full-time blockchain geek and a volunteer working for the Ethereum foundation as well as an active Github contributor. Dark Web Phishing Kits: Cheap, plentiful and ready to trick you How to stop hackers from messing with your home network (IoT) Privacy Australia - can you be tracked if you use a VPN? What you need to know about VPNFilter Malware Attack
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Guest Contributor
30 Nov 2018
7 min read
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5 lessons public wi-fi can teach us about cybersecurity

Guest Contributor
30 Nov 2018
7 min read
Free, public Wi-Fi is now crucial in ensuring people stay connected where a secure network is absent or mobile data is unavailable. While the advantages of flexible internet access are obvious, the dangers are often less clear. By now, most of us are aware that these networks can pose a risk, but few can articulate exactly what these risks are and how we can protect ourselves. Follow the advice below to find out exactly what dangers lurk within. The perils of public wi-fi When you join a public hotspot without protection and begin to access the internet, the packets of data that go from your device to the router are public and open for anyone to intercept. While that sounds scary, technology like SSL/TLS has ensured the danger here isn’t as bad as it was a few years ago. That being said, all a cybercriminal needs to snoop on your connection is some relatively simple Linux software that’s accessible online. This leaves you vulnerable to a variety of attacks. Let's take a look at some of them now. Data monitoring Typically, a wi-fi adapter will be set on “managed” mode. This means it acts as a standalone client connecting to a single router for access to the internet. The interface will ignore all data packets except those that are explicitly addressed to it. However, some adapters can be configured into other modes. In “monitor” mode, an adapter will capture all the wireless traffic in a certain channel, regardless of the source or intended recipient. In this mode, the adapter can even capture data packets without being connected to a router – meaning it can sniff and snoop on all the data it gets its hands on. Not all commercial wi-fi adapters are capable of this, as it’s cheaper for manufacturers to make those that only handle “managed” mode. Still, if someone gets their hands on one and pairs it with some simple Linux software, they can see which URLs you are loading and all of the data you’re entering on any website not using HTTPS – including names, addresses, and financial accounts. Fake hotspots Catching unencrypted data packets out of the air isn’t the only risk of public wi-fi. When you connect to an unprotected router, you are implicitly trusting the supplier of that connection. Usually this trust is well-founded – it’s unlikely your local café is interested in your private data. However, the carelessness with which we now connect to public routers means that cybercriminals can easily set up a fake network to bait you in. Once an illegitimate hotspot has been created, all of the data flowing through it can be captured, analysed, and manipulated. One of the most common forms of manipulation is simply redirecting your traffic to an imitation of a popular website. The sole purpose of this clone site will be to capture your personal information and card details – the same strategy used in phishing scams. ARP spoofing Unfortunately, cybercriminals don’t even need a fake hotspot to interfere with your traffic. Every wi-fi and Ethernet network has a unique MAC address – an identifying code used to ensure data packets travel to the correct destination. The way that routers – and all other devices – discover this information is using ARP (Address Resolution Protocol). For example, your smartphone might send out a request asking which device on the network is associated with a certain IP address. The requested device responds with its MAC address, ensuring the data packets are physically directed to the correct location. The issue with ARP is that it can be faked. Your smartphone might send a request for the address of the public wi-fi router, and a different device will answer with a false address. Providing the signal of the false device is stronger than the legitimate one, your smartphone will be fooled. Again, this can be done with simple Linux software. Once the spoofing has taken place, all of your data will be sent to the false router, which can subsequently manipulate the traffic however it likes. Man-in-the-Middle (MitM) attacks A man-in-the-middle attack (MITM) refers to any malicious action in which the attacker secretly relays or alters the communication between two parties. On an unprotected connection, a cybercriminal can modify key parts of the network traffic, redirect this traffic elsewhere, or inject content into an existing packet. This could mean displaying a fake login form or website, changing links, text, pictures, or more. This is relatively straightforward to execute; an attacker within reception range of an unencrypted wi-fi point could insert themselves easily. How to secure your connection The prevalence and simplicity of these attacks only serves to highlight the importance of basic cybersecurity best practices. Following these foundational rules of cybersecurity should serve to counteract the vast majority of public wi-fi threats. Firewalls An effective firewall will monitor and block any suspicious traffic flowing to and from your device. It’s a given that you should always have a firewall in place and your virus definitions updated to protect your device from upcoming threats. Though properly configured firewalls can effectively block some attacks, they’re not infallible, and do not exempt you from danger. They primarily help protect against malicious traffic, not malicious programs, and may not protect you if you inadvertently run malware. Firewalls should always be used in conjunction with other protective measures such as antivirus software. Software updates Not to be underestimated, software and system updates are imperative and should be installed as soon as they’re offered. Staying up to date with the latest security patches is the simplest step in protecting yourself against existing and easily-exploited system vulnerabilities. Use a VPN Whether you’re a regular user of public Wi-Fi or not, A VPN is an essential security tool worth having. This software works by generating an encrypted tunnel that all of your traffic travels through, ensuring your data is secure regardless of the safety of the network you’re on. This is paramount for anyone concerned about their security online, and is arguably the best safeguard against the risks of open networks. That being said, there are dozens of available VPN services, many of which are unreliable or even dangerous. Free VPN providers have been known to monitor and sell users’ data to third parties. It’s important you choose a service provider with a strong reputation and a strict no-logging policy. It’s a crowded market, but most review websites recommend ExpressVPN and NordVPN as reliable options. Use common sense If you find yourself with no option but to use public Wi-Fi without a VPN, the majority of attacks can be avoided with old-school safe computing practices. Avoid making purchases or visiting sensitive websites like online banking. It’s best to stay away from any website that doesn’t use HTTPS. Luckily, popular browser extensions like HTTPS everywhere can help extend your reach. The majority of modern browsers have in-built security features that can identify threats and notify you if they encounter a malicious website. While it’s sensible to heed these warnings, these browsers are not failsafe and are much less likely to spot local interference by an unknown third party. Simple solutions are often the strongest in cybersecurity With the rising use of HTTPS and TLS, it’s become much harder for data to be intercepted and exploited. That being said, with a laptop, free Linux software, and a cheap Wi-Fi adapter, you’d be surprised how much damage can be done. Public Wi-Fi is now a staple of modern life. Despite its ubiquity, it’s still exploited with relative ease, and many are oblivious to exactly what these risks entail. Clearly cybersecurity still has a long way to go at the consumer level; for now, old lessons still ring true – the simplest solutions are often the strongest. William Chalk is a writer and researcher at Top10VPN, a cybersecurity research group and the world’s largest VPN (Virtual Private Network) review site. As well as recommending the best VPN services, they publish independent research to help raise awareness of digital privacy and security risks.  
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Guest Contributor
20 Mar 2019
8 min read
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Defensive Strategies Industrial Organizations Can Use Against Cyber Attacks

Guest Contributor
20 Mar 2019
8 min read
Industrial organizations are prime targets for spies, criminals, hacktivists and even enemy countries. Spies from rival organizations seek ways to access industrial control systems (ICS) so they can steal intelligence and technology and gain a competitive advantage. Criminals look for ways to ransom companies by locking down IT systems. Hacktivists and terrorists are always looking for ways to disrupt and even endanger life through IT and international antagonists might want to hack into a public system (e.g. a power plant) to harm a country's economic performance. This article looks at a number of areas where CTOs need to focus their attention when it comes to securing their organizations from cyber attacks. Third Party Collaboration The Target breach of November 2013 highlighted the risks of poor vendor management policies when it comes to cybersecurity. A third party HVAC (Heating, Ventilation, and Air Conditioning) provider was connected into the retailer's IT architecture in such a way that, when it was hacked, cybercriminals could access and steal credit card details from their customers. Every third party given access to your network–even security vendors–need to be treated as possible accidental or deliberate vectors of attack. These include catering companies, consultants, equipment rental firms, maintenance service providers, transport providers and anyone else who requests access to the corporate network. Then there are sub-contractors to think about. The IT team and legal department need to be involved from the start to risk assess third-party collaborations and ensure access if granted, is restricted to role-specific activities and reviewed regularly. Insider and Outsider Threat An organization's own staff can compromise a system's integrity either deliberately or accidentally. Deliberate attacks can be motivated by money, revenge, ideology or ego and can be among the most difficult to detect and stop. Organizations should employ a combination of technical and non-technical methods to limit insider threat. Technical measures include granting minimum access privileges and monitoring data flow and user behavior for anomalies (e.g. logging into a system at strange hours or uploading data from a system unrelated to their job role). One solution which can be used for this purpose is a privileged access management system (PAM). This is a centralized platform usually divided into three parts: an access manager, a session manager, and a password vault manager. The access manager component handles system access requests based on the company’s IAM (Identity and Access Management) policies. It is a good practice to assign users to specific roles and to limit access for each user to only those services and areas of the network they need to perform their role. The PAM system automates this process with any temporary extra permissions requiring senior authorization. The session manager component tracks user activity in real time and also stores it for future audit purposes. Suspicious user activity can be reported to super admins who can then terminate access. The password vault manager component protects the root passwords of each system and ensures users follow the company’s user password policy. Device management also plays an important part in access security. There is potentially a big security difference between an authorized user logging on to a system from a work desktop and the same user logging on to the same system via their mobile device. Non-technical strategies to tackle insider threat might include setting up a confidential forum for employees to report concerns and ensuring high-quality cyber security training is provided and regularly reviewed. When designing or choosing training packages, it is important to remember that not all employees will understand or be comfortable with the technical language, so all instructions and training should be stripped of jargon as far as possible. Another tip is to include plenty of hands-on training and real-life simulations. Some companies test employee vulnerability by having their IT department create a realistic phishing email and recording how many clicks it gets from employees. This will highlight which employees or departments need refresher training. Robust policies for any sensitive data physically leaving the premises are also important. Employees should not be able to take work devices, disks or flash drives off the premises without the company’s knowledge and this is even more important after an employee leaves the company. Data Protection Post-GDPR, data protection is more critical than ever. Failure to protect EU-based customer data from theft can expose organizations to over 20 million Euros worth of fines. Data needs to be secure both during transmission and while being stored. It also needs to be quickly and easily found and deleted if customers need to access their data or request its removal. This can be complex, especially for large organizations using cloud-based services. A full data audit is the first place to start before deciding what type of encryption is needed during data transfer and what security measures are necessary for stored data. For example, if your network has a demilitarized zone (DMZ), data in transit should always end here and there should be no protocols capable of spanning it. Sensitive customer data or mission-critical data can be secured at rest by encrypting it and then applying cryptographic hashes. Your audit should look at all components of your security provider. For example, problems with reporting threats can arise due to insufficient storage space for firewall logs. VPN Vulnerabilities Some organizations avoid transmitting data over the internet by setting up a VPN (Virtual Private Network). However, this does not mean that data is necessarily safe from cybercriminals. One big problem with most set-ups is that data will be routed over the internet should the VPN connection be dropped. A kill switch or network lock can help avoid this. VPNs may not be configured optimally and some may lack protection from various types of data leaks. These include DNS leaks, WebRTC, and IPV6 leaks. DNS leaks can occur if your VPN drops a connection and your browser defaults to default DNS settings, exposing your IP address. WebRTC, a fairly new technology, enables browsers to talk to one another without using a server. This requires each browser to know the other’s public IP address and some VPNs are not designed to protect from this type of leak. Finally, IPV6 leaks will happen if your VPN only handles IPV4 requests. Any IPV6 requests will be sent on to your PC which will automatically respond with your IP address. Most VPN leaks can be checked for using free online tools and your vendor should either be able to solve the issue or you may need to consider a different vendor. If you can, use L2TP (layer 2 tunneling protocol) or, OpenVPN rather than the more easily compromised PPTP (Point-to-Point Tunneling Protocol). Network Segmentation Industrial organizations tend to use network segmentation to isolate individual zones should a compromise happen. For example, this could immediately cut off all access to potentially dangerous machinery if an office-based CRM is hacked. The Purdue Model for Industrial Control Systems is the basis of ISA-99, a commonly referenced standard, which divides a typical ICS architecture into four to five zones and six levels. In the most basic model, an ICS is split into various area or cell zones which sit within an overall industrial zone. A demilitarized zone (DMZ) sits between this industrial zone and the higher level enterprise zone. Network segmentation is a complex task but is worth the investment. Once it is in place, the attack surface of your network will be reduced and monitoring for intrusions and responding to cyber incidents will be quicker and easier. Intrusion Detection Intrusion detection systems (IDS) are more proactive than simple firewalls, actively searching the network for signs of malicious activity. An IDS can be a hardware device or a software application and can use various detection techniques from identifying malware signatures to monitor deviations from normal traffic flow. The two most common classes of IDS are network intrusion detection systems (NIDS) and host-based intrusion detection systems (HIDS). While NIDS focus on incoming traffic, HIDS monitor existing files, and folders. Alarm filtering (AF) technology can help to sort genuine threats from false positives. When a system generates a warning for every anomaly it picks up, agents can find it hard to connect failures together to find the cause. This can also lead to alarm fatigue where the agent becomes desensitized to system alarms and misses a real threat. AF uses various means to pre-process system alarms so they can be better understood and acted upon. For example, related failures may be grouped together and then assigned to a priority list. System Hardening and Patch Management System hardening means locking down certain parts of a network or device or removing features to prevent access or to stop unwanted changes. Patching is a form of system hardening as it closes up vulnerabilities preventing them from being exploited. To defend their organization, the IT support team should define a clear patch management policy. Vendor updates should be applied as soon as possible and automated where they can. Author Bio Brent Whitfield is CEO of DCG Technical Solutions, Inc. DCG provides a host of IT services Los Angeles businesses depend upon whether they deploy in-house, cloud or hybrid infrastructure. Brent has been featured in Fast Company, CNBC, Network Computing, Reuters, and Yahoo Business. RSA Conference 2019 Highlights: Top 5 cybersecurity products announced Cybersecurity researcher withdraws public talk on hacking Apple’s Face ID from Black Hat Conference 2019: Reuters report 5 lessons public wi-fi can teach us about cybersecurity
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Vijin Boricha
11 Jul 2018
5 min read
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Top 5 cybersecurity trends you should be aware of in 2018

Vijin Boricha
11 Jul 2018
5 min read
Cybersecurity trends seem to be changing at an incredible rate. That poses new opportunities for criminals and new challenges for the professionals charged with securing our systems. High profile  attacks not only undermine trust in huge organizations, they also highlight a glaring gap in how we manage cybersecurity in a rapidly changing world. It also highlighted that attackers are adaptive and incredibly intelligent, evolving their techniques to adapt to new technologies and new behaviors. The big question is what the future will bring. What cybersecurity trends will impact the way cybersecurity experts work - and the way cybercriminals attack - for the rest of 2018 and beyond. Let’s explore some of the top cyber security trends and predictions of 2018: Artificial Intelligence and machine learning based cyber attacks and defenses AI and ML have started impacting major industries in various ways, but one of the most exciting applications is in cybersecurity. Basically, Artificial Intelligence and Machine Learning algorithms can learn from past events in order to help predict and identify vulnerabilities within a software system. They can also be used to detect anomalies in behavior within a network. A report from Webroot claims that more than 90% of cybersecurity professionals use AI to improve their security skills. However, while AI and machine learning can help security professionals, it is also being used by cybercriminals too. It seems obvious: if cyber security pros can use AI to identify vulnerabilities, so can people that seek to exploit them. Expect this back and forth to continue throughout 2018 and beyond. Ransomware is spreading like fire Storing data on the cloud has many benefits, but it can be an easy target for cyber criminals. Ransomware is one such technique - criminals target a certain area of data and hold it to ransom. It’s already a high profile cyber security concern. Just look at WannaCry, Petya, Meltdown, and Spectre, some of the biggest cyber security attacks in 2017. The bigger players (Google, AWS, and Azure) of the cloud market are trying to make it difficult for attackers, but smaller cloud service providers end up paying customers for data breaches. The only way these attacks can be reduced is by performing regular back-ups, updating security patches, and strengthening real-time defenses. Complying with GDPR GDPR (General Data Protection) is an EU regulation that tightens up data protection and privacy for individuals within the European Union. The ruling includes mandatory rules that all companies will have to follow when processing and storing personal data. From 25 May, 2018, General Data Protection (GDPR) will come into effect where important changes will be implemented to the current data protection directive. To mention a few it will include increased territorial scope,stricter consent laws, elevated rights and more. According to Forrester report 80% companies will fail to comply with GDPR out of which 50% would choose not to, considering the cost of compliance. Penalties for non-compliance would reach upto €20m or 4% of worldwide annual turnover, whichever is greater. The rise of Cyberwar Taking current cybersecurity scenario into consideration, there are high possibilities 2018 will be the year of international conflict in cyberspace. This may include cyber crimes on government and financial systems or their infrastructure and utilities. Chances are cyber-terrorism groups will target sensitive areas like banks, press, government, law-enforcement and more similar areas. The Ashley Madison attack – which involved attackers threatening to release personal information about users if the site was not shut down – shows that ideological motivated attacks are often very targeted and sophisticated with the goal of data theft and extortion. The attack on Ashley Madison is testament to the fact that companies need to be doing more as attackers become more motivated. You should not be surprised to see cyber-attacks going beyond financial benefits. The coming year can witness cyber crimes which are politically motivated that is designed to acquire intelligence to benefit a particular political entity. These methods can also be used to target electronic voting system in order to control public opinion. These kind of sophisticated attacks are usually well-funded and lead to public chaos. Governments will need to take extensive checks to ensure their network and ecosystem is well protected. Such instances might lead to loss of right to remain anonymous on the web. Like everything else, this move will also have two sides of the coin. Attacking cyber currencies and blockchain systems Since Bitcoin and Blockchain were booming in the year 2017, it becomes a crucial target area for hackers. Chances are attackers may target smaller blockchain systems who opt for weaker cryptographic algorithms to increase performance. On the other hand, the possibility of cryptographic attack against Bitcoin can be minimum. The major worry here would about attacking a block with minimum security practices, but eventually that block could lead to larger blockchain system. One of the major advantage for attackers here is they don’t really need to know who the opposite partner is, as only a verified participant is authorised to execute the trade. Here, trust or risk plays an important part and that is blockchain’s sweet spot. For example: Receiving payments in government issued currencies have higher possibilities of getting caught but there is a higher probability of succeeding in cryptocurrency payments. Well, this may be the end of this article but is not an end to the way things might turn out to be in 2018. We still stand midway through another year and the war of cyberthreats rages. Don’t be surprised to hear something different or new as malicious hackers keep trying newer techniques and methodologies to destroy a system. Related links WPA3: Next-generation Wi-Fi security is here The 10 most common types of DoS attacks you need to know 12 common malware types you should know
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Savia Lobo
24 May 2018
14 min read
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12 common malware types you should know

Savia Lobo
24 May 2018
14 min read
A malware is a software with malicious intent that changes the system without the knowledge of the user. A malware uses the same technologies that are used by genuine software but the intent is bad. The following are some examples: Software such as TrueCrypt uses algorithms and techniques to encrypt a file to protect privacy, but, at the same time, ransomware uses same algorithms to encrypt files to extort the user. Similarly, Firefox uses HTTP protocol to browse the web while malware uses HTTP protocol to post its stolen data to its command and control (C&C) server In this article we will focus on the different types of malware. They can be categorized into different types based on the damage it causes to the system. It does not necessarily use a single method to cause damage; it can employ multiple ways. We will look into some known malware types: Backdoor Downloader Virus or file infector Worm Botnet Remote Access Tool (RAT) Hacktool Keylogger and password stealer Banking malware POS malware Ransomware Exploit and exploit kits To be clear, malware can act as a backdoor as well a password stealer or can be a combination of any of them. Some of the definitions are simple enough to understand in one line while others need some detailed explanation. This article is an excerpt taken from the book, 'Preventing Ransomware', written by Abhijit Mohanta, Mounir Hahad, and Kumaraguru Velmurugan. Backdoor A backdoor can be a simple functionality for a malware. It opens a port on the victim machine so that the hacker can log in without the victim's knowledge and carry out their work. A piece of backdoor malware can create a new process of itself or inject malicious code that opens a port in legitimate code executing in the system. Backdoor activity was usually part of other malware. Most of the RAT tools have a backdoor module that opens a port on the victim machine for the hacker to get in. Downloader A downloader is a piece of malicious software that downloads other malware. It has a URL for the malware that needs to be downloaded. Hence, when executed, it downloads other malware. Bedep was mostly known to download CryptoLockers. Upatre was another popular downloader. Virus or file infector File infection malware piggybacks its code in clean software. It alters an executable file on a disk in such a way that malware code is executed before or after the clean code in the file is executed. A file infector is often termed a virus in the security industry. A lot of antivirus products tag it as a virus. In the context of PE executables of Windows, a file infector can work in the following manner: Malware adds malicious code at the end of a clean executable file. It changes the entry point of the file to point the malicious code located at the end. When the exe is double-clicked, the malware code is executed first. The malicious code keeps the address of the clean code which was earlier the entry point. After completing the malicious activity, the malware code transfers control to the clean code: A virus can infect a file in several ways. It can place its code at different places in the malicious code. File infection is a way to spread in the system. Many of these file infectors infect every system file on Windows. So malware code has to execute irrespective of whether you start Internet Explorer or a calculator program. Some very famous PE file infectors are Virut, Sality, XPAJ, and Xpiro. Worm A worm spreads in a system by various mechanisms. File infection can also be considered a worm-like behavior. A worm can spread in several ways: To other computers on the network by brute forcing default usernames and passwords of network shares or other machines. By exploiting the vulnerability in network protocols. Using pen drives. When an autorun worm is executed, it looks for a pen drive attached to a system. The worm creates a copy of itself in the pen drive and also adds an autorun.inf file to the pen drive. When an infected pen drive is inserted into a new machine, autorun.inf is executed by Windows, which in turn executes the copied .exe. The copied exe can now copy itself at different locations in the new machine where the pen drive is inserted. Botnet A botnet is a piece of malware that is based on the client-server model. The victim machine that is infected with the malware is called a bot. The hacker controls the bot by using a C&C server. This is also called a bot herder. A C&C server can issue commands to the bots. If a large number of computers are infected with bots, they can be used to direct a lot of traffic toward any server. If the server is not secure enough and is incapable of handling huge traffic, it can shut down. This is usually called a denial of service (DOS) attack. A bot can use internet protocols or custom protocols to communicate with its C&C server. ZeroAccess and GameOver are famous botnets of the recent past. Keylogger and password stealer Keyloggers have been well known for a long time. They can monitor keystrokes and log them to a file. The log file can be transferred to the hacker later on. A password stealer is a similar thing. It can steal usernames and passwords from the following locations: Browsers store passwords for social networking sites, movie sites, song sites, email, and gaming sites. FTP clients such as FileZilla and SmartFTP, which can be used in companies or individuals to save data in FTP servers. Email clients such as Thunderbird and Outlook are used to access emails easily. Database clients used mostly by engineers and students Banking applications Users store passwords in password managers so that they don't have to remember them. Malware can steal passwords from these applications. LastPass and KeePass are password manager applications. Hackers can use these credentials to steal more data or access the private information of somebody or to try to access military installations. They can target executives using this kind of malware to steal their confidential information. zeus and citadel are famous password stealers. Banking malware Banking malware is financial malware. It can include the functionality of keylogging and password-stealing from the browser. Banks have come up with virtual keyboards, which is a major blow to keyloggers. Now, most malware use a man-in-the-middle (MITM) attack. In this kind of attack, a piece of malware is able to intercept the conversation between the victim and the banking site. There are two popular MITM mechanisms used by banking malware these days: form grabbing and browser injects. In form grabbing, the malware hooks the browser APIs and sends the intercepted data to its C&C server. Simultaneously, it can send the same data to the bank website too. Web inject works in the following manner: Malware can perform API hooking in the browser to intercept the web page that as requested by the victim browser. An original web page is a form in which victim needs to input various things, such as the amount they need to transfer, credentials, and so on. The malware modifies extra fields in this intercepted web page to add some extra fields, such as CVV number, PIN, and OTP, which are used for additional authentication. These additional fields are injected using an HTML form. This form varies based on the bank. Malware keeps a configuration file which tells the malware which form needs to be injected in the page of which banking site. After modifying the web page, the malware sends data to the victim's browser. So the victim sees the page with extra fields as modified by the malware. Hence, the malware is able to steal the additional parameters needed for authentication. Tibna, Shifu, Carberp, and Zeus are some famous pieces of banking malware. POS malware The method of money transfer is changing. Cash transactions in shops are changing. POS devices are installed in a lot of shops these days. Windows has a Windows POS operating system for these kinds of POS devices. The POS software in these devices is able to read the credit card information when one swipes a card in the POS device. If malware infects a POS device, it scans the POS software for credit card patterns. Credit card numbers are 16 digits. Malware scans for 16-digit patterns in the memory to identify and then steal credit card numbers. BlackPOS, Dexter, JackPOS, and BackOff are famous pieces of POS malware. Hacktool Hacktools are often used to retrieve passwords from browsers, operating systems, or other applications. They can work by brute forcing or identifying patterns. Cain and Abel, John the Ripper, and Rainbow Crack were old hack tools. Mimikatz is one of the latest hack tools associated with some top ransomware such as Wannacry and NotPetya to decode and steal the credentials of the victim. RAT A RAT acts as a remote control, like the name suggests. It can be used for both good and bad intentions. RATs can be used by system administrators to solve the issues of their clients by accessing the client's machine remotely. But since RATS usually give full access to the person sitting remotely, they can be misused by hackers. RATs have been used in sophisticated hacks lots of times. They can be misused for multiple purposes, such as the following: Monitoring keystrokes using keyloggers Stealing credentials and data from the victim machine Wiping out all data from a remote machine Creating a backdoor so that a hacker can log in Gh0st Rat, Poison Ivy, Back Orifice, Prorat, and NjRat are well-known RATs. Exploit Software is written by humans and, obviously, there will be bugs. Hackers take advantage of some of these bugs to compromise a system in an unauthorized manner. We call such bugs vulnerabilities. Vulnerabilities occur due to various reasons, but mostly due to imperfect programming. If programmers have not considered certain scenarios while programming the software, this can lead to a vulnerability in the software. Here is a simple C program that uses the function sctrcpy() to copy a string from source to destination: The programmer has failed to notice that the size of the destination is 10 bytes and the source is 23 bytes. In the program, the source is allocated 23 bytes of memory while the destination is assigned 11 bytes of memory space. When the strcpy() function copies the source into the destination, the copied string goes beyond the allocated memory of the destination. The memory beyond the memory assigned to the destination can have important things related to the program which would be overwritten. This kind of vulnerability is called buffer overflow. Stack overflow and heap overflow are commonly known as buffer overflow vulnerability. There are other vulnerabilities, such as use-after-free when an object is used after it is freed (we don't want to go into this in depth as it requires an understanding of C++ programming concepts and assembly language). A program that takes advantage of these vulnerabilities for a malicious purpose is called an exploit. To explain an exploit, we will talk about a stack overflow case. Readers are recommended to read about C programs to understand this. Exploit writing is a more complex process which requires knowledge of assembly language, debuggers, and computer architecture. We will try to explain the concept as simply as possible. The following is a screenshot of a C program. Note that this is not a complete program and is only meant to illustrate the concept: The main() function takes input from the user (argv[1]) then passes it on to the vulnerable function vulnerable_function. The main function calls the vulnerable function. So after executing the vulnerable function, the CPU should come back to the main function (that is, line no 15). This is how the CPU should execute the program: line 14 | line 4 | line 5 | line 6 | line 15. Now, when the CPU is at line 6, how does it know that it has to return to line 15 after that? Well, the secret lies in the stack. Before getting into line 4 from line 14, the CPU saves the address of line 15 on the stack. We can call the address of line 15 the return address. The stack is also meant for storing local variables too. In this case, the buffer is a local variable in vulnerable_function. Here is what the stack should look like for the preceding program: This is the state of the stack when the CPU is executing the vulnerable_function code. We also see that return address (address of line 15) is placed on the stack. Now the size of the buffer is only 16 bytes (see the program). When the user provides an input(argv[1]) that is larger than 16 bytes, the extra length of the input will overwrite the return address when strcpy() is executed. This is a classic example of stack overflow. When talking about exploiting a similar program, the exploit will overwrite the RETURN ADDRESS. As a result, after executing line 6, the CPU will go to the address which has overwritten the return address. So now the user can create a specially crafted input (argv[1]) with a length greater than 16 bytes. The input contains three parts - address of the buffer, NOP, and shellcode. The address of the buffer is the virtual memory address of the variable buffer. NOP stands for no operation instruction. As the name implies, it does nothing when executed. Shellcode is nothing but an extremely small piece of code that can fit in a very small space. Shellcode is capable of doing the following: Opening a backdoor port in the vulnerable software Downloading another piece of malware Spawning a command prompt to the remote hacker, who can access the system of the victim Elevating the privileges of the victim so the hacker has access to more areas and functions in the system: The following image shows the same stack after the specially crafted input is provided as input to the program. Here, you can see return address is overwritten with the address of the buffer so, instead of line 15, the CPU will go to the address of the buffer. After this NOP, the shellcode will be executed: The final conclusion is, by providing an input to the vulnerable program, the exploit is able to execute shellcode which can open up a backdoor or download malware. The inputs can be as follows: An HTTP request is an input for a web server An HTML page is an input for a web browser A PDF is an input to Adobe Reader And so on - the list is infinite. You can explore these using the keywords provided as it cannot be explained in a few lines and goes beyond the scope of this book. We often see vulnerabilities mentioned in blogs. Usually, a CVE number is mentioned for a vulnerability. One can find the list of vulnerabilities at http://www.cvedetails.com/. The wannacry ransomware used CVE-2017-0144 . 2017 is the year when the vulnerability was discovered. 0144 denotes that this was the 144th vulnerability discovered in 2017. Microsoft also issues advisories for vulnerabilities in Microsoft software. https://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-0144 gives the details of the vulnerability. The vulnerability description tells us that the bug lies in the SMBv1 server software installed in some of Microsoft operating system versions. Also, the URL can refer to some of the exploits. Now that you know what types of malware exist, do check out the book, Preventing Ransomware to further know about the techniques to prevent malware and perform effective malware analysis. IoT Forensics: Security in an always-connected world where things talk Top 5 penetration testing tools for ethical hackers Top 5 cloud security threats to look out for in 2018
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Fatema Patrawala
26 Jul 2019
9 min read
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Winnti Malware: Chinese hacker group attacks major German corporations for years, German public media investigation reveals

Fatema Patrawala
26 Jul 2019
9 min read
German public broadcasters, Bavarian Radio & Television Network (BR) and Norddeutscher Rundfunk (NDR), have published a joint investigation report on a hacker group spying on certain businesses since years. Security researchers, Hakan Tanriverdi, Svea Eckert, Jan Strozyk, Maximilian Zierer and Rebecca Ciesielski have contributed to this report. They shed light on how this group of hackers operate and how widespread they are. The investigation started with one of the reporters receiving this code daa0 c7cb f4f0 fbcf d6d1 which eventually led to the team discovering a hacking group with Chinese origins operating on Winnti Malware. BR and NDR reporters, in collaboration with several IT security experts, have analyzed the Winnti malware. Moritz Contag of Ruhr University Bochum extracted information from different varieties of the malware and wrote a script for this analysis. Silas Cutler, an IT security expert with US-based Chronicle Security, confirmed it. The report analyses cases from the below listed targeted companies: Gaming: Gameforge, Valve Software: Teamviewer Technology: Siemens, Sumitomo, Thyssenkrupp Pharma: Bayer, Roche Chemical: BASF, Covestro, Shin-Etsu Hakan Tanriverdi one of the reporters wrote on Twitter, “We looked at more than 250 samples, wrote Yara rules, conducted nmap scans.” Yara rules is a tool primarily used in malware research and detection. Nmap is a free and open source network scanner used to discover hosts and services on a computer network. Additionally in the report, the team has presented ways to find out if one is infected by the Winnti malware. To learn about these methods in detail, check out the research report. Winnti malware is complex, created by “digital mercenaries” of Chinese origin Winnti is a highly complex structure that is difficult to penetrate. The term denotes both a sophisticated malware and an actual group of hackers. IT security experts like to call them digital mercenaries. According to a Kasperky Lab research held in 2011, the Winnti group has been active for several years and in their initial days, specialized in cyber-attacks against the online video game industry. However, according to this investigation the hacker group has now honed in on Germany and its blue-chip DAX corporations. BR and NDR reporters analyzed hundreds of malware versions used for unsavory purposes. They found that the hacker group has targeted at least six DAX corporations and stock-listed top companies of the German industry. In October 2016, several DAX corporations, including BASF and Bayer, founded the German Cyber Security Organization (DCSO). The job of DCSO’s IT security experts was to observe and recognize hacker groups like Winnti and to get to the bottom of their motives. In Winnti’s case, DCSO speaks of a “mercenary force” which is said to be closely linked with the Chinese government. The reporters of this investigation also interviewed few company staff, IT security experts, government officials, and representatives of security authorities. An IT security expert who has been analyzing the attacks for years said, “Any DAX corporation that hasn’t been attacked by Winnti must have done something wrong.” A high-ranking German official said to the reporters, “The numbers of cases are mind-boggling.” And claims that the group continues to be highly active—to this very day. Winnti hackers are audacious and “don’t care if they’re found out” The report points out that the hackers choose convenience over anonymity. Working with Moritz Contag the reporters found that the hackers wrote the names of the companies they want to spy on directly into their malware. Contag has analyzed more than 250 variations of the Winnti malware and found them to contain the names of global corporations. According to reporters, hackers usually take precautions, which experts refer to as Opsec. But the Winnti group’s Opsec was dismal to say the least. Somebody who has been keeping an eye on Chinese hackers on behalf of a European intelligence service believes that they didn’t really care: “These hackers don’t care if they’re found out or not. They care only about achieving their goals." The reporters believed that every hacking operation leaves digital traces. They also believe that if you notice hackers carefully, each and every step can be logged. To decipher the traces of the Winnti hackers, they took a closer look at the program code of the malware itself. They used a malware research engine known as “VirusTotal” created by Google. The hacker group initially attacked the gaming industry for financial gain In the early days, the Winnti group of hackers were mainly interested in money making. Their initial target was Gameforge, a gaming company based in the German town of Karlsruhe. In 2011, an email message found its way into Gameforge’s mailbox. A staff member opened the attached file and unaware to him started the Winnti program. Shortly afterwards, the administrators became aware that someone was accessing Gameforge’s databases and raising the account balance. Gameforge decided to implement Kaspersky antivirus software and  arranged for Kaspersky's IT security experts to visit the office.The security experts found suspicious files and analyzed them. They noticed that the system had been infiltrated by hackers acting like Gameforge’s administrators. It turned out that the hackers had taken over a total of 40 servers. “They are a very, very persistente group,” says Costin Raiu, who has been watching Winnti since 2011 and was in charge of Kaspersky’s malware analysis team. “Once the Winnti hackers are inside a network, they take their sweet time to really get a feel for the infrastructure,” he says. The hackers will map a company’s network and look for strategically favorable locations for placing their malware. They keep tabs on which programs are used in a company and then exchange a file in one of these programs. The modified file looks like the original, but was secretly supplemented by a few extra lines of code. Thereafter the manipulated file does the attackers’ bidding. Raiu and his team have been following the digital tracks left behind by some of the Winnti hackers. “Nine years ago, things were much more clear-cut. There was a single team, which developed and used Winnti. It now looks like there is at least a second group that also uses Winnti.” This view is shared by many IT security companies. And it is this second group which is getting the German security authorities worried. One government official says, “Winnti is very specific to Germany. It is the attacker group that's being encountered most frequently." Second group of Winnti hackers focused on industrial espionage The report says that by 2014, the Winnti malware code was no longer limited to game manufacturers. The second group’s job was mainly industrial espionage. Hackers targeted high-tech companies as well as chemical and pharmaceutical companies. They also attacked companies in Japan, France, the U.S. and Germany. The report sheds light on how Winnti hackers broke into Henkel’s network in 2014. The reporters present three files containing the website belonging to Henkel and the name of the hacked server. For example, one starts with the letter sequence DEDUSSV. They realized that server names can be arbitrary, but it is highly probable that DE stands for Germany and DUS for Düsseldorf, where the Henkel headquarters are located. The hackers were able to monitor all activities running on the web server and reached systems which didn't have direct internet access: The company also confirmed the Winnti incident and issued the following statement: “The cyberattack was discovered in the summer of 2014 and Henkel promptly took all necessary precautions.” Henkel claims that a “very small portion” of its worldwide IT systems had been affected— the systems in Germany. According to Henkel, there was no evidence suggesting that any sensitive data had been diverted. Other than Henkel, Winnti also targeted companies like Covestro, manufacturers of adhesives, lacquers and paints, Japan’s biggest chemical company, Shin-Etsu Chemical, Roche, one of the largest pharmaceutical companies in the world. Winnti hackers also penetrated the BASF and Siemens networks. A BASF spokeswoman says that in July 2015, hackers had successfully overcome “the first levels” of defense. “When our experts discovered that the attacker was attempting to get around the next level of defense, the attacker was removed promptly and in a coordinated manner from BASF’s network.” She added that no business relevant information had been lost at any time. According to Siemens, they were penetrated by the hackers in June 2016. “We quickly discovered and thwarted the attack,” Siemens spokesperson said. Winnti hackers also involved in political espionage The hacker group also is interested in penetrating political groups and there were several such indicators according to the report. The Hong Kong government was spied on by the Winnti hackers. The reporters found four infected systems with the help of the nmap network scan, and proceeded to inform the government by email. The reporters also found out a telecommunications provider from India had been infiltrated, the company happens to be located in the region where the Tibetan government has its headquarters. Incidentally, the relevant identifier in the malware is called “CTA.” A file which ended up on VirusTotal in 2018 contains a straightforward keyword: “tibet”. Other than this the report also throws light on attacks which were not directly related to political espionage but had connection among them. For example, the team found out Marriott hotels in USA was attacked by hackers. The Indonesian airline Lion Air networks were also penetrated by them. They wanted to get to the data of where people travel and where they were located, at any given time. The team confirmed this by showing the relevant coded files in the report. To read the full research report, check out the official German broadcsaster’s website. Hackers steal bitcoins worth $41M from Binance exchange in a single go! VLC media player affected by a major vulnerability in a 3rd library, libebml; updating to the latest version may help An IoT worm Silex, developed by a 14 year old resulted in malware attack and taking down 2000 devices
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Guest Contributor
10 Dec 2019
8 min read
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Businesses are confident in their cybersecurity efforts, but weaknesses prevail

Guest Contributor
10 Dec 2019
8 min read
Today, maintaining data integrity and network security is a primary challenge for businesses everywhere. The scale of the threats they face is enormous. Those that succeed go unheralded. Those that fail end up in the headlines. Despite the risks, a shocking number of security decision-makers seem confident that their companies have no vulnerabilities to exploit. According to a recent research report by Forrester, more than 85% of those decision-makers believe that they've left no gaps in their organization's security posture. A cursory look at the available data, however, should be enough to indicate that some of them are going to be proven wrong – and that they're at a much greater risk than they realize or are willing to admit. The threat landscape is stark. There have already been at least 3,800 data breaches in 2019 alone, which is a huge increase over prior years. The environment is so dangerous that Microsoft and Mastercard are spearheading an effort alongside other tech firms to create a joint-cyberdefense organization to help targeted firms fend off determined attackers. None of that squares with the high confidence that businesses now seem to have in their security. It is clear that there is quite a bit of distance between how digital security experts judge the preparedness of businesses to defend themselves and how the business decision makers view their own efforts. The best way to remedy that is for businesses to double-check their security posture to make sure they are in the best possible position to fend off cyberattacks. To help, here's a rundown of the most common security vulnerabilities that tend to exist in business organizations, to use as a checklist for shoring up defenses. 1. Physical vulnerabilities Although it's often overlooked, the physical security of a company's data and digital assets is essential. That's why penetration testing firms will often include on-site security breach attempts as part of their assessments (sometimes with unfortunate results). It's also why businesses should create and enforce strict on-site security policies and control who possesses what equipment and where they may take it. In addition, any devices that contain protected data should make use of strong storage encryption and have enforced password requirements – ideally using physical keys to further mitigate risk. 2. Poor access controls and monitoring One of the biggest threats to security that businesses now face isn't external – it's from their own employees. Research by Verizon paints a disturbing picture of the kinds of insider threats that are at the root of many cybersecurity incidents. Many of them trace back to unauthorized or improper systems access, or poor access controls that allow employees to see more data than they need to do their jobs. Worse still, there's no way to completely eliminate the problem. An employee with the right know-how can be a threat even when their access is properly restricted. That's why every organization must also practice routine monitoring of data access and credential audits to look for patterns that could indicate a problem. 3. Lack of cybersecurity personnel The speed with which threats in the digital space are evolving has caused businesses everywhere to rush to hire cybersecurity experts to help them defend themselves. The problem is that there are simply not enough of them to go around. According to the industry group (ISC)2, there are currently 2.93 million open cybersecurity positions around the world, and the number keeps on growing. To overcome the shortage, businesses would do well to augment their security personnel recruiting by training existing IT staff in cybersecurity. They can subsidize things like online CompTIA courses for IT staff so they can upskill to meet emerging threats. When it comes to cybersecurity, a business can't have too many experts – so they'd best get started making some new ones. 4. Poor employee security training Intentional acts by disgruntled or otherwise malicious employees aren't the only kind of insider threat that businesses face. In reality, many of the breaches traced to insiders happen by accident. Employees might fall prey to social engineering attacks and spear phishing emails or calls, and turn over information to unauthorized parties without ever knowing they've done anything wrong. If you think about it, a company's workforce is it's largest attack surface, so it's critical to take steps to help them be as security-minded as possible. Despite this reality, a recent survey found that only 31% of employees receive annual security training. This statistic should dent the confidence of the aforementioned security decision-makers, and cause them to reevaluate their employee security training efforts post-haste. 5. Lack of cloud security standards It should come as no surprise that the sharp rise in data breaches has coincided with the headlong rush of businesses into the cloud. One need to only look at the enormous number of data thefts that have happened in broad daylight via misconfigured Amazon AWS storage buckets to understand how big an issue this is. The notoriety notwithstanding, these kinds of security lapses continue to happen with alarming frequency. At their roots is a general lack of security procedures surrounding employee use of cloud data storage. As a general rule, businesses should have a process in place to have qualified IT staff configure offsite data storage and restrict settings access only to those who need it. In addition, all cloud storage should be tested often to make sure no vulnerabilities exist and that no unauthorized access is possible. 6. Failure to plan for future threats In the military, there's a common admonition against "fighting yesterday's war". In practice, this means relying on strategies that have worked in the past but that might not be appropriate in the current environment. The same logic applies to cybersecurity, not that many businesses seem to know it. For example, an all-machine hacking contest sponsored by DARPA in 2016 proved that AI and ML-based attacks are not only possible – but inevitable. Conversely, AI and ML will need to be put to use by businesses seeking to defend themselves from such threats. Still, a recent survey found that just 26% of business security policymakers had plans to invest in AI and ML cybersecurity technologies in the next two years. By the time many come around to the need for doing so, it's likely that their organizations will already be under attack by better-equipped opponents. To make sure they remain safe from such future-oriented threats, businesses should re-evaluate their plans to invest in AI and ML network and data security technology in the near term, so they'll have the right infrastructure in place once those kinds of attacks become common. The perils of overconfidence At this point, it should be very clear that there are quite a few vulnerabilities that the average business must attend to if they hope to remain secure from both current and emerging cyber threats. The various surveys and data referenced here should also be more than enough proof that the confidence many decision-makers have in their current strategies is foolhardy at best – and pure hubris at worst. More importantly, all signs point to the situation getting far worse before it gets better. Every major study on cybersecurity indicates that the pace, scale, and scope of attacks is growing by the day. In the coming years, the rapid expansion of new technologies like the IoT and the hyper-connectivity driven by 5G cellular data networks is going to amplify the current risks to an almost unimaginable level. That means businesses whose security is lacking now don't have much time left to get up to speed. The bottom line here is that when it comes to cybersecurity, nothing is more expensive than regret. It's a dangerous thing for business leaders to be too overconfident in their preparations or to underestimate the size of the security challenges they face. It's a situation where there's no such thing as being too prepared, and they should never be satisfied with the status quo in their efforts to stay protected. Would-be attackers and data thieves will never rest on their laurels – and neither should businesses. Author Bio Andrej Kovačević is a cybersecurity editor at TechLoot, and a contributing writer for a variety of other technology-focused online publications. He has covered the intersection of marketing and technology for several years and is pursuing an ongoing mission to share his expertise with business leaders and marketing professionals everywhere. You can also find him on Twitter. Glen Singh on why Kali Linux is an arsenal for any cybersecurity professional [Interview] CNCF announces Helm 3, a Kubernetes package manager and tool to manage charts and libraries Puppet’s 2019 State of DevOps Report highlight security integration into DevOps practices result into higher business outcome  
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Guest Contributor
19 Jun 2019
11 min read
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How not to get hacked by state-sponsored actors

Guest Contributor
19 Jun 2019
11 min read
News about Russian hackers creating chaos in the European Union or Chinese infiltration of a US company has almost become routine. In March 2019, a Russian hacking group was discovered operating on Czech soil by Czech intelligence agencies. Details are still unclear, however, speculations state that the group is part of a wider international network based out of multiple EU countries and was operating under Russian diplomatic cover. The cybercriminal underground is complex, multifaceted, and by its nature, difficult to detect. On top of this, hackers are incentivized not to put their best foot forward in order to evade detection. One of the most common tactics is to disguise an attack so that it looks like the work of another group. These hackers frequently prefer to use the most basic hacking software available because it avoids the unique touches of more sophisticated software. Both of these processes make it more difficult to trace a hack back to its source. Tracing high-level hacking is not impossible; however, there are some clear signs investigators use to determine the origin of a hacking group. Different hacker groups have distinct motivations, codes of conduct, tactics, and payment methods. Though we will be using Russian and Chinese hacking as our main examples, the tips we give can be applied to protecting yourself from any state-sponsored attack. Chinese and Russian hacking – knowing the difference Russian speaking hacker forums are being exposed with increasing frequency, revealing not just the content shared in their underground network, but the culture that members have built up. They first gained notoriety during the 90s when massive economic changes saw the emergence of vast criminal networks – online and offline. These days, Russian hacks typically have two different motivations: geopolitical and financial. Geopolitical attacks are generally designed to create confusion. The role of Russian hackers in the 2016 US election was one of the most covered stories by international media. However, these attacks are most effective and most common in countries with weak government institutions. Many of them are also former Soviet territories where Russia has a pre-existing geopolitical interest. For example, the Caucasus region and the Baltic states have long been targeted by state-sponsored hackers. The tactics of these “active measures” are multivariate and highly complex. Hacking and other digital attacks are just one arm of this hybrid war. However, the hacks that affect average web users the most, tend to be financially motivated. Russian language forums on the dark web have vast sections devoted to “carder” communities. Carder forums are where hackers go to buy and sell everything from identity details, credit card details, data dumps, or any other information that has been stolen. For hackers looking to make a quick buck, carder forums are bread and butter. These forums and subforums include detailed tutorials on how to spoof a credit card number. The easiest way to steal from unsuspecting people is to buy a fake card. However, card scanners that steal a person’s credit card number and credentials are becoming increasingly popular. Unlike geopolitical hacks, financial attacks are not necessarily state-sponsored. Though individual Western hackers may be more skilled when it comes to infiltrating more complex system, Russian hackers have several distinct advantages. Unlike in Western countries, Russian authorities tend to turn a blind eye to hacking that targets either Western countries or former Soviet states. This allows hackers to work together in groups, something they’re discouraged from doing in countries that crack down on cyber attacks. This means Russian hackers can target more people at a greater speed than individual bad actors working in other countries. Why the Chinese do it? There are a number of distinct differences when it comes to Chinese hacking projects. The goal of state-sponsored Chinese attacks is to catch up to the US and European level of technological expertise in fields ranging from AI, biomedicine, alternative energy to robotics, and space technology. These goals were outlined in Xi Jinping's Made in China 2025 announcement. This means, the main target for Chinese hackers is economic and intellectual property, which can be corporate or government. In the public sector, targeting US defense forces yields profitable designs for state-of-the-art technology. The F-22 and F-35, two fighter aircraft developed for the US military, were copied and produced almost identically by China’s People’s Liberation Army. In the private sector, Chinese agents target large scale industries that use and develop innovative technology, like oil and gas companies. For example, a group might attack an oil firm to get details about exploration and steal geological assessments. This information would then be used to underbid their US competitor. After a bilateral no-hacking agreement between the US and Chinese leaders was signed in 2016, attacks dropped significantly. However, since mid-2018, these attacks have begun to increase again. The impact of these new Chinese-sponsored cyber attacks has been farther reaching than initially expected. Chinese hacking groups aren’t simply taking advantage of system vulnerabilities in order to steal corporate secrets. Many top tech companies believed they were compromised by a possible supply chain attack that saw Chinese microchips secretly inserted into servers. Though Chinese and Russian hackers may have different motivations, one thing is certain: they have the numbers on their side. So how can you protect yourself from these specific hacking schemes? How to stay safe – tips for everyday online security Cyber threats are a part of life connected to the internet. While there’s not a lot you can do to stop someone else from launching an attack, there are steps you can take to protect yourself as much as possible.  Of course, no method is 100% foolproof, but it’s likely that you can be protected. Hackers look for vulnerabilities and flaws to exploit. Unless you are the sole gatekeeper of a top-secret and lucrative information package that you’ve placed under heavy security, you may find yourself the target of a hacking scheme at some point or another.  Nevertheless, if a hacker tries to infiltrate your network or device and finds it too difficult, they will probably move onto an easier target. There are some easy steps you can take to bolster your safety online. This is not an exhaustive list. Rather, it’s a round-up of some of the best tools available to bolster your security and make yourself a difficult – and therefore unattractive – target. Make use of security and scanning tools The search tool Have I Been Pwned is a great resource for checking if your accounts have been caught up in a recent data breach. You can enter your email address or your password for any account to see whether either has been exposed. You can also set up notifications on your accounts or domains that will tell you immediately if they are caught in a data breach. This kind of software can be especially helpful for small business networks, which are more likely to find themselves on the receiving end of a Chinese hack. Hackers know that small businesses have fewer resources than large corporations, which can make their attacks even more devastating. Read Also: ‘Have I Been Pwned’ up for acquisition; Troy Hunt code names this campaign ‘Project Svalbard’ Manage your passwords One of the most common security mistakes is also one of the most dangerous. You should use a unique, complicated password for each one of your accounts. The best way to manage a lot of complicated passwords is with a password manager. There are browser extensions but they have an obvious drawback if you lose your device. It’s best to use a separate application. Use a passphrase, rather than a password, to access your password manager. A passphrase is exactly what it sounds like. Rather than trusting that hackers won’t be able to figure out a single word, using multiple words to create a full phrase is both easier to remember and harder to hack. If your device offers biometric access (like fingerprint), switch it on. Many financial apps also offer an additional layer of biometric security before you send money. Use a VPN A VPN encrypts your traffic, making it unreadable to outsiders. It also spoofs your IP address, which conceals your true location. This prevents sensitive information from falling into the hands of unscrupulous users and prevents your location details being used to identify you. Some of the premium VPNs integrate advanced security features into their applications. For example, malware blockers will protect your device from malware and spyware. Some also contain ad-blockers. Read Also: How to protect your VPN from Data Leaks Keep in mind that free VPNs can themselves be a threat to your online privacy. In fact, some free VPNs have been used by the Chinese government to spy on their citizens. That’s why you should only use a high-quality VPN like CyberGhost to protect yourself from hackers and online trackers. If you’re looking for the fastest VPN on the market, ExpressVPN has consistently been the best competition in speed tests. NordVPN is our pick for best overall VPN when comparing it based on price, security, and speed. VPNs are an important tool for both individuals and businesses. However, because Russian hackers prefer individual targets, using a VPN while dealing with any sensitive data, such as a bank, will help keep your money in your own account. Learn to identify and deal with phishing Phishing for passwords is one of the most common and most effective ways to extract sensitive information from a target. Russian hackers were famously able to sabotage Hillary Clinton’s presidential campaign when they leaked emails from campaign manager John Podesta. Thousands of emails on that server were stolen via a phishing scam. Phishing scams are an easy way for hackers to infiltrate companies especially. Many times, employee names and email addresses are easy to access online. Hackers then use those names for false email accounts, which tricks their coworkers into open an email that contains a malware file. The malware then opens a direct line into the company’s system. Crucially, phishing emails will ask for your passwords or sensitive information. Reputable companies would never do that. One of the best ways to prevent a phishing attack is to properly train yourself, and everyone in your company, on how to detect a phishing email. Typically – but not always – phishing emails use badly translated English with grammatical errors. Logos and icons may also appear ill-defined. Another good practice is to simply hover your mouse over the email, which will generally reveal the actual sender. Check the hosting platform and the spelling of the company name as these are both techniques used by hackers to confuse unwitting employees. You can also use a client-based anti-phishing software, like one from avast! or Kaspersky Labs, which will flag suspicious emails. VPNs with an anti-malware feature also offer reliable protection against phishing scams. Read Also: Using machine learning for phishing domain detection [Tutorial] Keep your apps and devices up-to-date Hackers commonly take advantage of flaws in old systems. Usually, when an update is released, it fixes these vulnerabilities. Make a habit of installing each update to keep your devices protected. Disable Flash Flash is a famously insecure piece of software that hackers can infiltrate easily. Most websites have moved away from flash, but just to be sure, you should disable it in your browser. If you need it later you can give Flash permission to run for just video at a time. What to do if you have been hacked If you do get a notice that your accounts have been breached, don’t panic. Follow the steps given below: Notify your workplace Notify your bank Order credit reports to keep track of any activity Get identity theft insurance Place a credit freeze on your accounts or a fraud alert Chinese and Russian hackers may seem impossible to avoid, but the truth is, we are probably not protecting ourselves as well as we should be. Though individuals are less likely to find themselves the target of Chinese hacks, most hackers are out for financial gain above all else. That makes it is more crucial to protect our private data. The simple tips provided above are a great baseline to secure your devices and protect your privacy, whether you want to protect against state-sponsored hacking or individual actors. Author Bio Ariel Hochstadt is a successful international speaker and author of 3 published books on computers and the internet. He’s an ex-Googler where he was the Global Gmail Marketing Manager and today he is the co-founder of vpnMentor and an advocate of online privacy. He’s also very passionate about traveling around the world with his wife and three kids.   Google’s Protect your Election program: Security policies to defend against state-sponsored phishing attacks, and influence campaigns How to beat Cyber Interference in an Election process The most asked questions on Big Data, Privacy, and Democracy in last month’s international hearing by Canada Standing Committee
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