Supposedly this is the new wave in viruses is through your IM. I was checking away messages (you know you do it too.) when I saw my friends message of something to the effect of "Still Friends?" and then a URL, Stupidly I clicked on the URL. When a security download box came up I clicked no, but I guess it didn't care at that point. My IM got sick. I ran every norton, spybot, whatever feature I have on my computer nothing found anything amiss.
So, moral of the story:
http://elon.edu/student/jaleman/index.htm
This guy is the bomb, it found and deleted my IM viruses, plus he claims he updates it all the time to fix the new ones coming out. So if your IM comes down with a viruses, use the IM Virus removal tool on here. Kicks butt! Can't recommend it enough, when other virus engines weren't even finding a problem