Possibe false postives.

I did a custom scan. I have some old files on Drive E. It detected 98lite as a virus.

It say threat: BV:ExitWindows-M [Trj] 98restor.bat, 98se2me.bat, 02res.bat,03.bat, 03rest.bat, 05res.bat,Read1st,txt

Those I know are not viruses. The 98lite company wouldn’t do that.

I also have a program called MozBackup. It backups up your Mozilla profiles. Avast is reporting a file in the SeaMonkey 2.9.1 (en-US) - 2012-05-26.pcv archive as a decompression bomb. The file in the PCV archive causing the possible false alert is called places.sqlite

One comment, I haven’t be able to do current updates (Do to being on dial-up). So the Avast definitions files may be too old.

when you did the custom scan… did you select “scan memory” ?

decompression bomb…the name is the most dangerous here, avast is just telling you that the file will unpack to a very large file so it will not unpack and scan it

The files size is 2.05 MB aprox for the archive file. I am surprised Avast won’t scan the file. The memory was scanned before I did the custom scan. I have scanned the same locations with Malwarebytes no errors. Not sure if Spybot S&D scanned those files, There is no operating system on Drive E.