Groveldog,
Questions are only silly when you don’t ask them!
You can view the over 22000 virus definitions by right clicking on the main skin and going to Virus definitions.
Clear the search box and use * instead.
Then do a search. The program will list all the viruses that Avast will offer protection, and the type of virus…that is: Worm, Trojan, In the Wild etc.
You are not alone in your comment that Avast is a superior product. When I first used it, it found a virus that had been embeded in an unopended email that had been on my system for 2 years. McAfee and Norton never found it.
The best feature of Avast is the Auto-update. I never miss an update anymore, nor do I have to wonder if my app is up to date.
Hope the info helps.
Good Luck. ;D