virus undetected in zip file

Avast Free Antivirus / Premium Security
1

hello.

I have been using AVG but heard good things about Avast! Home. So I uninstalled AVG & installed Avast!.

I have a virus that was sent to me - it is I-Worm/Netsky R. It was zipped and sent to my Thunderbird email client. Since I use Thunderbird, it was never activated. I have not (and will not ;D ) unzip the virus.

Just to test out my new Avast! installation, I right clicked on the zip file and scanned. A window came up and ran a test, but then the window automatically closed without saying whether or not Avast detected the known virus. I did this a few times so that I could try to read what it said (very fast closing of the window) - it seems as though the zipped virus was not detected.

I uninstalled Avast! and reinstalled AVG and it quickly detected the virus with a right-click scan.

How come Avast didnt notice (or give me any warning) that there was a virus in this zip file? I think to be able to do this is an important feature of an anti-virus, no?

thank you all for you help

2

Did you used Mail Protection Wizard before using Mail client? Guess not,because even Home Edition can detect viruses inside ZIp archives that get to you by mail.

3

No, I never set up the email protection. The zipped virus that I have is something I received a few weeks ago & kept for testing purposes.

4

bionnaki, re your ‘text was very quick, unabkle to read’.
Did you check the option ’ display result of explorer extension’ in the Menu of the actual avast program?
That way it…euh…displays the results.’

Grtngs, RedistuO.