Installed New Norton - virus came thru undetected - HELP

[NotSoLucky]

I installed Norton 9.0 corporate edition. Set the server up as primamry. Installed the norton client onto all workstations via Client Roll-Out Tool. All workstations appear correctly.

Did a scan of all systems to verify functionality and no virus at that time. No viruses were found.

BUT - I had a virus slip through somehow. Virus was named Trojan.Dingsta.A. We found it after running a scan on the individual workstation.

What the H*** happened?

 

[LawnBoy]

You did a scan and according to the definitions you had at the time, no virii were found. Sometime later, you got a new definition file which included the Trojan.Dingsta.A signature. On next scan the virus was found.

 

[NotSoLucky]

The original scan (9/13/06) was done with the most update files at that time.

The scan that found the file was done manually today (9/21/06).

Norton did not find the virus on it's sechedule 9am scan.

 

[LawnBoy]

So the scheduled scan at 9am didn't find it but a manual scan did? Are you positive there was not a definition update in the time between the two scans?

Maybe you got the virus in the time between the 9am scan and the manual scan.

 

[Auger282]

...ps you may want to upgrade to 10.1

 

[NotSoLucky]

We would love to upgrade to 10.1, but we are not on Active Directory yet.

The workstation had the same definition at 9 am as he did at 11:30am when we did the manual scan.

We just got a new definition today at 3pm.

 

[LawnBoy]

You could have picked up the virus in that 2.5 hrs. Remember, you don't have to "do" anything to get a virus these days, the worms will find you.

Have you got a creation time on the virus file? This *might* tell you when the file was written.