Well. I’ve got some trojans on CD. So, I decided to test avast on-access protection. Nothing happend when I’ve opend directory with trojans. Another atniviruses i used - Kaspersky AV, DrWeb, Norton AV - alerted me immediately in such case.
Than. As you know, trojans consist of a client and server. And if PC is infected. it’s infected with client.
Avast found nothing in client file, but found BO in server file, heh. Kaspersky AV and DrWeb found BO in client file as well.