My friend had something similar if not the exact same thing.
He had Adaware, Spybot, and AVG.
I tried a couple diff Anti-virus/trojan progs, and webroot, none of those found it.
But he was ok with a reformat, so thats what happened. I only messed with it for 30 mins. I tried to take it out of the start up menu, didn't work. and I couldn't find the process associated with it, so I gave up......