Hackers Beware

Chapter 15. Preserving Access

IN MOST CASES, AFTER AN ATTACKER MAKES THE EFFORT to break into a system, he wants to be able to get back into the system whenever he wants. For example, if an attacker breaks into a site, to use it as a launching pad to break into other systems, he wants to be able to break back in with ease to access his tools after they are loaded on the system. A common way to do this is to create a backdoor into a system that only he knows about. Therefore, it is critical that he not only create ways to get back in, but that he also cover his tracks. What good is creating a backdoor if the system administrator can quickly ...