heuristic technique

Avast Free Antivirus / Premium Security
1

1 week ago i infected by virus but my avast didn’t detected that virus, i didn’t know why avast can’t detect that, and when i update my avast with yesterday vps my avast can detect that virus but can’t delete that. fortunately avast has bootscan so my avast can delete that virus.

  • why avast didn’t detect virus on my computer
  • does avast have heuristic technique?
2

No. avast! does not use heuristic detection in the program itself. It relies (amongst other things) on the heuristic predictions of those who create its definition files.

3

Maybe because its signature was added after the first time and before the last…

It uses generic signatures instead. The only heuristic is for mail.

4

I forgot about the email :-[