This “Win32.Virut.q” really looks like a bad one. You can read about someone else’s problem with it on Spybot forum here:

http://forums.spybot.info/showthread.php?t=18075

It’s a variant of “W32/Virut.h” (McAfee’s name). See this link for particulars:

http://vil.nai.com/vil/content/v_143034.htm