The TDL3 rootkit was labeled “the most advanced rootkit ever seen in the wild” several months ago. That in itself was bad news. Now, the rootkit has been found in the wild with an x64 variant. Make sure to keep your anti-virus updated, and don’t go to sites that normally drop these kind of attacks.
The dropper is being dropped by usual crack and porn websites, but we soon expect to see it dropped by exploit kits too, as happened to current TDL3 infections.