I had a similar problem like Bubba. Got infected two days ago with UAC Rootkit.
Tried many programs: Malwarebytes, Ad-aware, Stopzilla; without success. This trojan is really bad and well written. I could not do a system restore and it stopped the installation of many anti-malware programs. Kaspersky was busted, at least it told me, it could not delete this trojan.
After many restarts between Kaspersky and Ad-aware, I decided I had enough and was ready to cough-up some money, so I called iS3 (Stopzilla), but to my despair they told me they could not help me, as they were still working on the UAC Rootkit. I gave them my e-mail address, but was almost ready for an OS re-installation.
Then searching online on my work computer found-out about Combofix. So I downloaded it, burned it to a DVD (I had left home my flash drive which would have come very handy in this case) and tonight I got rid of the nasty malware.
First I had renamed Combofix even before I burned it to the DVD. The trojan seems to have a list of names and websites. Then I had to make sure Kaspersky and Ad-aware will not interfere, so I close them. But the Ad-aware scanner was still running in the background, so the first try failed. Another re-start and more browser windows popping-up along with infomercials playing in the background. This time I called the task manager and make sure nothing was running from Ad-aware or anybody else. Once Combofix got into his routine I knew I was into something good.
It took about 25 minutes and 55 stages, but it worked! My system was clean again, or so it seems?! Even my Firefox bookmarks are back!
I have the Combofix log, where should I post it?