XP Antivirus 2012 is a nasty little bugger and I have Zone Alarm which protects me from a lot of other nasties. However I passed a link - in chat - to a friend and it appeared to have been the catalyst to her catching this virus.
The link is (click at peril) http://www.imagefap.com/photo/75437299/822206286.jpeg
It had no effect on me, but when she was FINALLY able to get back online she immediately told me. I don't know what official action needs to be taken, but please don't let this happen to you or anyone you care about.