http://en.wikipedia.org/wiki/Alureon
So yeah, looks like a fairly major one.
"While the rootkit is generally able to hide itself very effectively, circumstancial evidence of the infection may be found by examining network traffic and outbound connections (Netstat). The "FixMbr" command of the Windows Recovery Console and manual replacement of atapi.sys may be required before some anti-virus tools are able to find and clean an infection."
I'm almost positive a total reformat will fix this...At least, that's how I would fix it. If my AV can't fix something, then a total reformat is in order...unfortunately.