I was searching around for as much info on this nasty as I could, and everything I’ve found on it says it can’t infect windows vista operating system. I remebered seeing an old post on here so I looked it up.
http://forum.avast.com/index.php?topic=41569.0
It seems that some of the detections were for win64:virut. I for the life of me can’t think of a reason for that detection on any win32 system.