nanog mailing list archives

Re: New worm / port 1434?


From: Josh Richards <jrichard () cubicle net>
Date: Sat, 25 Jan 2003 03:12:40 -0800


Note, further analysis makes me believe that the ICMP we saw immediately
beforehand was a coincidence and unrelated.  The origin of the ICMP has
been traced to a customer application.

-jr

* Josh Richards <jrichard () cubicle net> [20030125 00:21]:

A preliminary look at some of our NetFlow data shows a suspect ICMP payload
delivered to one of our downstream colo customer boxes followed by a
70 Mbit/s burst from them.  The burst consisted of traffic to seemingly random
destinations on 1434/udp.  This customer typically does about 0.250 Mbit/s
so this was a bit out of their profile. :-)  Needless to say, we shut them
down per a suspected security incident.  The ICMP came from 66.214.194.31 
though that could quite easily be forged or just another compromised box.  
We're seeing red to many networks all over the world though our network seems 
to have quieted down a bit.  Sounds like a DDoS in the works.  

Anyone else able to corroborate/compare notes? 

----
Josh Richards <jrichard@{ geekresearch.com, cubicle.net, digitalwest.net }>
Geek Research, LLC - Digital West Networks, Inc - San Luis Obispo, CA 
KG6CYK - IP/Unix/telecom/knowledge/coffee/security/crypto/business/geek


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