MBAM scan showed 18 or 19 baddies, they seem to be false positives related to Avast!. When I deleted them, the Avast scanner wouldn't work, couldn't open the skin, but Avast would scan a folder from the right click menu.
More information about it on the Avast forum
edit: They are working on it even as we write.
Very interesting login.
Keep us informed.
The Avast guys say to just restore the files and keep going. Avast Forum
Long thread in False Positives at the MBAM forum about this. I'm trying database # 2886 (newest just put online)....okay! No more 19 trojans, reports clean. Good.
Confirmed #2886 doesn't detect anything in the Avast installation directory.