Posted 01 September 2011 - 05:06 AM
Got the same issue yesterday evening, while I was looking for a flat on crap web-sites.
I'm using windows7 professional 64bits.
I was browsing using Firefox 3.6.20 (that had warned me few hours ago to update to 3.6.21 (which I did) and to restart to apply the patch (which I didn't...)). So, if I got that virus because I was lazy to restart my Firefox, then I'm just an bleep...
While I was browsing, my browser became extremely slow until I got spammed with pop-ups asking me for admin rights granting (I kept clicking no as well).
This morning, my background desktop had vanished and now, the documents and the icons as well.
I have backed-up my data already thanks to my Ubuntu partition. Now I'm trying to think about what would be the quickest for me to bring back my windows partition on its foot.
I will try the Microsoft Security Essentials ASAP, and the set of scanners described here and keep you up to date.