Hey guys,
I recently cleaned up my system thanks to oldman960 over at the
SpyWare BeWare! forums, and he suggested that I let you guys know about this. Avast identified 1ac66ae.sys as a rootkit, but was unable to remove it, even during a boottime scan. We eventually killed it using Avenger, if I remember correctly.
Anyway, here's a detailed
forum post including logs from various scanners of all that happened. If you need some guidance as to where something is, like a certain scanner's log, let me know, and I'll be glad to direct you.
Keep up the great work with Avast!