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--AlanIn each of three categories – viruses, macros, worms and scripts; backdoors, trojans, and other malware; and a third category, combining the results of the first two – OneCare received the worst score out of seventeen products tested, according to AV-Comparatives.org, a group of IT graduate students who have published formal analyses of antivirus tools since Feb. 2004. The effort is led by Andreas Clementi, the project tester and a graduate student at the University of Innsbruck.
Microsoft also ranked third from the bottom in detection of polymorphic viruses, which included such worms as W32/Insane.A, which can produce varied copies of itself, defeating a static signature file.