Server-side attacks – Metasploit basics

In this section, we're going to look at an example of a very simple thing: a backdoor. Some programs or services are shipped with backdoors embedded in them. We're going to exploit this, and we are choosing this very simple exploit because we are going to look at a framework called Metasploit. We will be using this framework a lot. We are going to start with something simple and then we're going to go deeper into the framework. First, let's look at how we can find that exploit. Again, using the same method that we've always been using, we have an Nmap scan; as we know, we're going to go on each port and Google them, looking for exploits. We are going to Google the service name vsftpd 2.3.4 exploit. It's the service name followed by exploit. We can see that the first result comes in from a website called Rapid7. Rapid7 is a company that makes the Metasploit framework, so that's why we chose this particular exploit. We're going to exploit this service...