Ah, I guess I didn't read the original post carefully enough.
In that case, I would certainly like to see these files. Can you send them?
In any case, it's a little strange... the files cannot cause troubles when they are in Chest. The only way it could happen would be that they are important for the internet connection (i.e. they are infected system files) - but in that case, it wouldn't help if you move them to avast! folder, instead of moving them to Chest; they would have to stay in the original location.
Btw, if the files are in Chest, they are encrypted - so in that case, avast! Virus Cleaner certainly could not find them.
Can you post the exact full (original) filenames of the infected files?