Full Disclosure mailing list archives

RE: Re: Nachi Worm


From: "Schmehl, Paul L" <pauls () utdallas edu>
Date: Thu, 4 Dec 2003 17:49:39 -0600

-----Original Message-----
From: full-disclosure-admin () lists netsys com 
[mailto:full-disclosure-admin () lists netsys com] On Behalf Of 
Gabriel L. Somlo
Sent: Thursday, December 04, 2003 4:48 PM
To: full-disclosure () lists netsys com
Subject: [Full-disclosure] Re: Nachi Worm

I just use nmap to scan for machines listening on tcp port 
707. Very few false positives, good scaling:

nmap -sS -p707 -oG - AAA.BBB.0.0/16 | grep 'Ports: 707/open/tcp' \
                                    | cut -d' ' -f2 \
                                    | sort -t. -k3,3n -k4,4n \
                                    | mail -s "Nachi 
suspects" foo () bar com

And *that* is why I love Unix.  :-)

Paul Schmehl (pauls () utdallas edu)
Adjunct Information Security Officer
The University of Texas at Dallas
AVIEN Founding Member
http://www.utdallas.edu/~pauls/ 

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