Not really new, just a new name. In either Safe or Normal mode it boots
directly up to splash screen with "Clean This" on it with only one place ot
click. I forget what that was but I didn't click it.
This was in XP SP3. I got around it by booting inSafe Mode and picking the
Administrator account which let me in. Then I checked the registry to see
if the shell\open\command had been tampered with. It hadn't.
Then went to Documents And Settings\User\Application Data and looked for a
three lettered exe file. Sure enough, it was "gog.exe". I renamed it and
was then able to download MBAM, install and run it. It found one
Trojan.FakeAlert and one other lesser thing.
Rebooted into Safe Mode Users Account, ran MBAM again. Found nothing.
Then to Normal Mode, ran MBAM and SAS both.
Seems to be OK now. I'm running a full scan with Avira but don't expect to
find anything much.

Google "Clean This" and the first hit is "How to delete Clean This virus".
That's computing.net (Tom's Guide Tech Support).

Go get 'em Dave! :-)

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--- Everybody has a right to my opinion. ---