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Re: W32/Sobig-F - Halflife correlation ???

  • From: Darren Smith
  • Date: Sat Aug 23 08:25:17 2003

Hi

Just a quick look at my syslog file, where MOO is the name of my ACL.

fgrep MOO /var/log/cisco/<router>.log | grep 27015 -c
2383

fgrep MOO /var/log/cisco/<router>.log | grep 27016 -c
459

fgrep MOO /var/log/cisco/<router>.log | grep 27017 -c
210

fgrep MOO /var/log/cisco/<router>.log | grep 27018 -c
59

As you can see most of them were on 27015, these logs were from just one of
my transit interfaces.

Best Regards

Darren Smith

----- Original Message ----- 
From: "Robert Blayzor" <[email protected]>
To: "North American Network Operators Group" <[email protected]>
Sent: Saturday, August 23, 2003 1:05 PM
Subject: Re: W32/Sobig-F - Halflife correlation ???


>
> On 8/23/03 7:17 AM, "Darren Smith" <[email protected]> wrote:
>
> > They were trying to hit servers in multiple subnets, all on ports 270XX.
>
> I'm not sure on this.  Lots of gaming servers use the 270XX UDP range.
> Quake3, HL, etc.
>
> It may be possible it's just probing for other HL servers running on
> different ports.  A lot of these games also use the same gaming engine for
> the network and graphics abilities, so it's possible HL may not be the
only
> "game server" in the mix, it may be any game that uses the HL engine.  I
> know there are several out there, Counterstrike being one of them.
>
> So if it's not looking for a HL only exploit, I'd bet it's trying to get
the
> infected machines to link up and communicate via the network of gaming
> servers.  This could be very bad because there could be virtually no way
to
> stop this other than taking down the "Game Spy" type networks so the
> computers can't find each other.
>
> --
> Robert Blayzor, BOFH
> INOC, LLC
> [email protected]
> PGP: http://www.inoc.net/~dev/
> Key fingerprint = A445 7D1E 3D4F A4EF 6875  21BB 1BAA 10FE 5748 CFE9
>
> "Oh my God, Space Aliens!!  Don't eat me, I have a wife and kids!
>                 Eat them!"  -- Homer J. Simpson
>
>
>