Understanding what a virus is?

I recently had a suspected trojan but it turned out to be a false positive (using Avast 4.7). What I don’t understand is the name which the software identified, Win32:Small-IFZ, is very similar to many known trojans. What my question basically is. Does the name have any bearing on whether or not it may be malicious? If not where do the names come from and where did this file come from?

Iwas going to post this on Avast forum but I can’t seem to get access even though I have asked for the activation code several times!

Anyhow if someone could explain please.

(:NRD)

this might help :slight_smile:

http://gladiator-antivirus.com/forum/index.php?showtopic=50919

(V)