Here is a link to a Yahoo! news item I found yesterday.. http://news.yahoo.com/blogs/lookout/bla ... 40354.html
Yes, all too many computers may have been infected with this virus.. and if your AV is not updated daily, the spoor of this virus may remain undetected. It could sneak in as tiny file packets, lying in wait until a "key" packet is dropped into your system.. then all those 'innocent' packets come together as a huge threat.
While the free AV and firewall programs may be great, they may lack the in-depth scanning features and pop-up blockers of the purchased versions.. and the associated link scanners for phishing cookies and such.
If you have not attended to this viral epidemic by now, then as evasive
has noted, your system needs to be 'sanitized' with a complete disk wipe and full reinstall of all programming.. or shut down for good!
F@H.. to solve mankind's maladies.. in our lifetimes!