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Network Security Focus-Virus
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Re: Virus On Network

Subject: Re: Virus On Network
Date: Wed, 06 Oct 2004 08:51:46 -0700
Joe,

You didn't say what OS you were running.

Some Viruses/Trojans hide themselves.

If the OS is Windows 2000 or XP the first thing I would do would be to
start in safe mode and do a full virus scan. If we are talking Windows
98 then you need to scan from DOS before windows starts.

Hope this Helps


Roger McLaren
Systems Support Analyst
Information Technology Services
Ventura County Superintendent of Schools Office

"Joe Cervantes" <jcervantes@senecaco.com> 10/6/2004 8:08:38 AM >>>
My network of about 200 users seems to have been infected with some
sort of virus generating lots of traffic and killing our router.

The traffic is a syn packet and they appear to be scanning our entire
network which is how we found the unusual traffic, looked for pcs with
destination addresss not valid in our subnet and they were scanning
through them sequentualy. 

The infected PCs all have dlll32.exe running in the background and when
i stop it they restart. All of the PCs have the latest norton 9.0 and
upto date DAts Adaware and SPybot dont find anything either. 

Joe 

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