Security Incidents mailing list archives

RE: Kuang2 strikes again, is it just me?


From: "Rob Shein" <shoten () starpower net>
Date: Sat, 15 Feb 2003 23:02:48 -0500

Ah, a honeypot...a good question comes to mind.  Does anyone have any info
on what a Kuang2 backdoor looks like to a scanner?  I'd rather not install
one myself and work to figure it out if anyone else has done the work
already...

-----Original Message-----
From: Jeff Kell [mailto:jeff-kell () utc edu] 
Sent: Saturday, February 15, 2003 8:35 PM
To: Incidents
Subject: Kuang2 strikes again, is it just me?


Last Sunday (Feb 9) I reported a sudden flurry of scans on 
tcp/17300 (the Kuang2 backdoor).  I had 9 hits in an hour on 
a cable modem, and 18 in all in the next 6 hours, then they 
stopped.  Nothing appeared on my radar screen at work where I 
monitor a /18, a /22, and a /24 
address block.

Today looks like a revisit of similar probing.  Home cable modem 
reports (timezone EST, GMT-05:00), all directed at my tcp/17300:

2003/02/15 16:47:35    81.65.242.15:3149 (m15.net81-65-242.noos.fr) 
2003/02/15 16:47:35   211.28.41.112:4970 
(c17758.rivrw1.nsw.optusnet.com.au)
2003/02/15 17:02:25   213.226.66.79:3222 
(hd5e2424f.gavlegardarna.gavle.to)
2003/02/15 17:04:45  213.98.218.209:3702 
(213-98-218-209.uc.nombres.ttd.es)
2003/02/15 17:17:42   62.178.112.57:4835 
(chello062178112057.10.12.vie.surfer.at)
2003/02/15 17:29:07  212.181.67.244:4285 (sagan-67-244.ip-pluggen.com)
2003/02/15 17:30:54    213.46.66.21:3842 (d66021.upc-d.chello.nl)
2003/02/15 17:50:30 213.200.153.133:3882 
(c213-200-153-133.cm-upc.chello.se) 
2003/02/15 17:51:44 212.187.116.244:3343 
(c116244.upc-c.chello.nl) 2003/02/15 17:54:41 
212.114.214.226:3020 (DSL01-214226.NEFkom.net)
2003/02/15 17:54:49    213.10.93.27:1321 (ipd50a5d1b.speed.planet.nl)
2003/02/15 18:04:49    80.38.58.157:2900 
(157.Red-80-38-58.pooles.rima-tde.net)
2003/02/15 18:30:53 217.215.175.113:1768 
(as11-4-4.ehn.lk.bonet.se) 2003/02/15 18:38:30 211.222.249.106:4230 
2003/02/15 19:02:57  213.67.117.218:2436 (h218n1fls13o893.telia.com)
2003/02/15 19:22:48     66.72.61.20:4358 
(adsl-66-72-61-20.dsl.gdrpmi.ameritech.net)
2003/02/15 19:25:08   24.185.30.193:1829 
(ool-18b91ec1.dyn.optonline.net)
2003/02/15 19:35:22    213.66.82.38:4059 (h38n1fls33o863.telia.com)

But once again, no sign of it at the office.  Very strange.  
Since the connection is never established, I don't know the 
payload they are 
trying to deliver.  Will try to setup a honeypot on the port 
and see what comes up.

Jeff

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