BackTrack is a Linux-based penetration testing arsenal that aids security professionals in the ability to perform assessments in a purely native environment dedicated to hacking.
It’s a superb tool to recreate, examine and understand exploits that potentially exist in operating systems and web applications.
computersecuritystudent.com provide an excellent introduction to some of BackTrack’s functionality.
Although this lesson is easily defeated by simply turning on the Windows XP Firewall. It shows the potential for harm that a malicious hacker can cause on a poorly configured machine.