Swen gets through anti-virus software

From: billygoat (anonymous_at_discussions.microsoft.com)
Date: 10/18/03 

Date: Sat, 18 Oct 2003 14:01:19 -0700

I have Norton 2002 Professional Security firewall with
Norton anti-virus running in the background, Live updates
of virus definitions, plus Spybot an Ad-Aware. I am up-to-
date on critical Windows ME patches.

I have been getting 7-10 mostly Swen infected emails a day
for the past several weeks, sucessfully intercepted and
quarantined by Norton. Today after my morning ritual of
infected email and quarantine, I noticed one last
suspicious email did not alert the anti-virus. I quickly
deleted it, then ran a virus scan which produced one
infected file that I quarantined. I reran the scan which
showed a clean system. Not feeling secure, I ran the
Symantec site-based virus detection which showed 19 swen
infected files. I downloaded the swen removal tool and
sucessfully eliminated the files.

My questions are:
1. After weeks of sucessfully detecting swen (and other)
infected files, why did one get through?
2. I realize this should be addressed to Norton but
perhaps someone can answer: why would my anti-virus
indicate that the system was clean when the Symantec site-
based virus detection showed infected files?

Any answers would be welcomed.

Relevant Pages

  • Re: Swen gets through anti-virus software
    ... > Norton anti-virus running in the background, ... > infected email and quarantine, ... > suspicious email did not alert the anti-virus. ... > infected files, ...
    (microsoft.public.security.virus)
  • Re: Word 2000 doesnt see Kaspersky Anti-Virus Personal
    ... Norton AV has an Office Plug-in which integrates with Word and can cause all ... Replace with the directory path for your OfficeAV.dll file. ... > I've replaced Norton 2000 with Kaspersky Anti-Virus Personal on my> computer. ... It ran a virus> scan with the old Norton, under the macro security options it doesn't ...
    (microsoft.public.word.docmanagement)
  • Re: Whenever I play any streaming media, WMP10 crashes. Help!!!!
    ... and I don't have a virus (according to Norton ... anti-virus). ... > Error message codes may be found searching there or via a general search ...
    (microsoft.public.windowsmedia)
  • Re: Swen gets through anti-virus software
    ... > Norton anti-virus running in the background, Live updates ... > suspicious email did not alert the anti-virus. ... > infected files, ...
    (microsoft.public.security.virus)
  • VIRUS
    ... to follow the instrucrions to remove norton,and load ... never load Norton or mcAfee again.This is a great product ... >I've got another virus. ... >then vendor has an anti-virus program running). ...
    (microsoft.public.windowsxp.perform_maintain)