DavidR
5
This is a new trojan/malware varient of the Exploit.HTML.ObjData and as such not recognised by many AVs.
Further information can also be found at http://www.viruslist.com/eng/viruslist.html?id=1625393 which backs up what whocares posted.
There were two security bulletins and patches issued by MS last year, links to these are in both reference links.
When a security bulitin comes out, what happens is that it draws attention to the vulnerability to the virus hackers/script kiddies and they exploit the vulnerability and for most part are very successful because most people don’t bother to keep their OS fully patched and up to date.
The moral to this tale, get to windows.update on a regular basis, preventation has to be better than the cure.