A rather strange antivirus program.
It cleans viruses ok, but does not alert that the viruses have been put there in the first place.
Is this normal?
I ran the scan today and found five virues that the program removed, but no alert that they were there in the first place.
It depends on your settings what Avast does/doesn’t. I suggest you read the help file and make yourself familiar with Avast and the settings it is offering the user.