If you are getting a virus warning that you believe is a false positive, then if you can zip and password protect (‘virus’, will do) the suspect file and send it to virus @ avast.com (no spaces).
Give a brief outline of the problem (possibly a link to this thread), the fact that you believe it to be a either a new, undetected virus or false positive and include the password in the body of the email. Some info on the avast version and VPS number (see about avast {right click avast icon}) will also help.
If it is indeed a false positive, add it to the exclusions lists and check scan it periodically using the ashQuick scan (right click scan), when it is no longer detected then remove it from the exclusions.
Also see (Mini Sticky) False Positives
I also got a false positive with w32:doomber-c on WOL.EXE (Wake on Lan utility) with vps 0602-3. This software has been on my machine for months.
This also seems to have been fixed with the later VPS (0603-0) - I wasn’t online to update to 0602-4 so can’t confirm if this was fixed in that version.