full-disclosure - Exploiting a Worm

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Date: Wed Sep 14 17:40:29 2005
From: frank at knobbe.us (Frank Knobbe)
Subject: Exploiting a Worm

On Tue, 2005-09-13 at 22:29 +0000, Ian Gizak wrote:
> I'm pentesting a client's network and I have found a Windows NT4 machine 
> with ports 620 and 621 TCP ports open.
> 
> When I netcat this port, it returns garbage binary strings. When I connect 
> to port 113 (auth), it replies with random USERIDs.
> [...]
> I have checked the open ports and no-one seems to be the worm ftp server or 
> something useful related to the worm. Some ports allow input but don't reply 
> anything...

Could it be that you are buzzing around a honeypot like a moth around a
porch light? Or have to followed up with the client and can you rule it
out as a honeypot? Otherwise it's a very interesting port fingerprint
for an NT4 box :)

Cheers,
Frank

-- 
Ciscogate: Shame on Cisco. Double-Shame on ISS.
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