apparently avast! antivirus detects this exploit already and removes it before it even reaches your computer at the moment. interesting, while i havent heard of any other AV's successfully doing so with ease.

We're protected by the latest VPS 0552-1, avast! detects this exploit as Win32:Exdown [Trj] and other AVs do too but avast!'s users are more effectively protected by Web Shield as it scans HTTP traffic in real time so the exploit is stopped before it gets to our machine.
EDIT: forgot to mention that i found this while browsing around the avast! av forums. here's the link to the thread if anybody is curious.

http://forum.avast.com/index.php?topic=18295.0