You could also check the offending/suspect file at:
VirusTotal - Multi engine on-line virus scanner and
report the findings here.
If it is indeed a false positive (only detected by avast in VT above), add it to the exclusions lists:
Standard Shield, Customize, Advanced, Add and
Program Settings, Exclusions Restore it to its original location, periodically check it (scan it in the chest), there should still be a copy in the chest even though you restored it to the original location. When it is no longer detected then you can also remove it from the Standard Shield and Program Settings, exclusions.
Send the sample to
virus@avast.com zipped and password protected with the password in email body, a link to this topic might help and false positive in the subject.
Or you can also add the file to the User Files (File, Add) section of the avast chest (if it isn't already in the chest) where it can do no harm and send it from there (select the file, right click, email to Alwil Software). The new submission process doesn't actually email it but uploads it to avast during the Auto or Manual update process.
So no need to zip and PW protect when the sample is sent from chest. A copy of the file/s will remain in the original location, so any further action you take can remove that.
