The crackingtool "Cult of the Dead Cow" of the hacker group with pretext of the remote management tool developing & distributing. It was suitableto theupper version "of Back,Orifice "other than Windows 9x,it reachedthe point where it operates even with Windows NT, (Windows 2000/withXP it does not move). As for the computer where Back Orifice 2000was executed, from the tool for remote manipulation all operationit reachesthe point where it can do without access restriction. By the way, the anti virus software manufacturer handles Back Orifice2000corresponds to the inspection withthe anti virus softwareas the Trojan horse.