Aliases
Backdoor.HacDef.084, Win32/HacDef.084, Backdoor.HackDefender
Type
Trojan
Description
Troj/HacDef-100 is backdoor Trojan that is targeted at NT/2000/XP operating systems. As well as allowing unauthorised remote access to the victim's computer, this Trojan is also able to hide information about the victim's system including files, folders, processes, services and registry entries.
http://www.sophos.com/virusinfo/analyses/trojhacdef100.html

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic