[lug] phantom irc traffic

Gordon Golding gordongoldin at aim.com
Thu Nov 20 16:16:28 MST 2008


 


Somebody noticed a very regular pattern of IRC traffic from our webserver.



Every 3 minutes a handshake.



 



What could cause this? 
We got kooties?



 



Can’t seem to figure out what process is doing this.



 



Also, we see a ESTABLISHED connection to irc.rcn.com



Can’t figure out what process is holding that connection.



 



How can I figure out what process is holding that irc.rcn.com
that I see in netstat?



 



Any thoughts?



 



IP 195.197.175.21 is irc2.saunalahti.fi



We have grad students and researchers from all over the
world, so I’m not immediately panicked at the foreign address.



 



Here are some flowscan logs for the IRC traffic. 



 



11/20 00:05:05 
195.197.175.21  128.138.225.63   6 
0  6667 49439     2    
139



11/20 00:05:05 
128.138.225.63 
195.197.175.21   6  0 49439 
6667     2     138



11/20 00:08:05 
195.197.175.21 
128.138.225.63   6  0  6667
49439     2     139



11/20 00:08:05 
128.138.225.63 
195.197.175.21   6  0 49439 
6667     2     138



 11/20 00:11:05  195.197.175.21  128.138.225.63   6  0  6667 49439    
2     139



11/20 00:11:05 
128.138.225.
63 
195.197.175.21   6  0 49439 
6667     2     138



11/20 00:14:05 
128.138.225.63 
195.197.175.21   6  0 49439 
6667     2     138



11/20 00:14:05 
195.197.175.21 
128.138.225.63   6  0  6667
49439     2     139



11/20 00:15:28 
128.138.225.63 
195.197.175.21   6  0 49439 
6667     2     104



11/20 00:15:28 
195.197.175.21 
128.138.225.63   6  0  6667
49439     2     379



11/20 00:17:05 
195.197.175.21 
128.138.225.63   6  0  6667
49439     2     139



11/20 00:17:05 
128.138.225.63 
195.197.175.21   6  0 49439 
6667     2     138



11/20 00:20:05 
128.138.225.63 
195.197.175.21   6  0 49439 
6667     2     138



11/20 00:20:05 
195.197.175.21 
128.138.225.63   6  0  6667
49439     2     139



11/20 00:23:10 
128.138.225.63 
195.197.175.21   6  0 49439 
6667     3     190



11/20 00:23:10 
195.197.175.21 
128.138.225.63   6  0  6667
49439     3     328




 


Gordon 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.lug.boulder.co.us/pipermail/lug/attachments/20081120/8184829b/attachment.html>


More information about the LUG mailing list