RE: Increase in traffic on port 20480 and 6667

["Trevor Cushen" <Trevor.Cushen () sysnet ie>]

If it is a Windows machine use fport to see what EXE is opening the
port.  If it is Unix the lsof will do the same job.  

http://www.foundstone.com/knowledge/intrusion_detection.html
Note the port and file monitors which might be useful in your
investigation?!?

http://freshmeat.net/projects/lsof


Hope this helps 



Trevor Cushen
Sysnet Ltd

www.sysnet.ie
Tel: +353 1 2983000
Fax: +353 1 2960499



-----Original Message-----
From: dsardina [mailto:dsardina () si rr com] 
Sent: 15 October 2002 21:41
To: Kip Sr.; security-basics () securityfocus com
Subject: Re: Increase in traffic on port 20480 and 6667


I dont know much about port 20480, but 6667 is an attempt to connect to
a mIRC Server.

I dont know if 192.168.0.199 is a router IP or a pc, but if its a pc,
check to see if that pc has any IRC Server Software is installed.

(6667) is default port for a irc server.//

Just my 2 cents
Good Luck~

DS-


----- Original Message -----
From: "Kip Sr." <kipsr1 () yahoo com>
To: <security-basics () securityfocus com>
Sent: Thursday, October 10, 2002 3:16 PM
Subject: Increase in traffic on port 20480 and 6667


> Hi there,
>
> In the past few days, my IDS has been picking up
> traffic coming from port 20480 (on Internet servers)
> to port 6667 (internal desktops). Both ports are
> commonly used by trojan horse programs. Has anyone
> else seens this?
>
> 10/10-11:50:01.977897 204.x.x.x:20480 ->
> 192.168.0.199:6667
> TCP TTL:255 TOS:0x10 ID:0 IpLen:20 DgmLen:195
>
>
> Thanks,
> Kip Sr.
>
> __________________________________________________
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