Well, there is a lot of different malware out there today. Some programs are even in the shadow area between spyware/adware and legal programs and NO program can detect everything! We are mainly focused on the viruses/worms but also on some more dangerous trojans as backdoors.

There is no need to loose the confidence in Avast! If you have any suspicious files, please feel free to send them to virus@avast.com for analysis…

Pavel