09-18-2006, 08:40 PM
might even be defender itself. its fios units run on cmds, it could of glitched on a startup and wrote it by accident or even got it from a random ad from a site. the site itself can be clean but on occasion a commercial ad may be infected. but from what you explained it sounds like an infostealer trojan. try a free scan from trend micro. also, you may want to think about getting some kind of all in one tools kit such as xp tools so when you're done scanning for it, you can remove its backups that could be sitting in the registry.