I have avast free v5 and added a custom scan. In the exclusion tab I added .iso. Assuming that would make avast not scan any iso files. When the scan was finished it said that a Windows 7 iso file on my machine was a decompression bomb. Is using something like a global exclusion i.e. () allowed and if so, why was the Win 7 iso file scanned?
I can’t reproduce the problem here, the local exclusion list works as expected.
Please try to enable creation of the report file for the custom task, let all record types be included in there - and after running the scan again, post a few lines around the place where the decompression bomb message appears.