Incidents
Outbound Connections Jul 06 2006 05:33PM
No email com (2 replies)
Re: Outbound Connections Jul 07 2006 03:50AM
Ted Pham (telamon cmu edu) (1 replies)
RE: Outbound Connections Jul 07 2006 04:26AM
Ken Dunham (dunhamk rica net)
Try fport, track it back to the apps running on that port...that's where you
start. Then scan those files and/or monitor traffic.

Ken

Director of Rapid Response Team

-----Original Message-----
From: Ted Pham [mailto:telamon (at) cmu (dot) edu [email concealed]]
Sent: Thursday, July 06, 2006 9:51 PM
To: No (at) email (dot) com [email concealed]
Cc: incidents (at) securityfocus (dot) com [email concealed]
Subject: Re: Outbound Connections

> The [System] process (PID 4 on this Windows XP Pro Box) is making
> strange outbound connections to unknown IP address spaces on one of our
machines.
> It tries to connect to port 139 and 445. Is there any way to figure
> out what is causing the system process to do this? The connections do
> not seem to be successful. The Packet trace shows the outbound SYS
> and then nothing. Any help would be appreciated!
>
>
> Thanks!

I haven't actually tested this on a compromised system before, but it's
worth a shot.

1) Get Process Explorer from www.sysinternals.com
2) Run Process Explorer.
3) Right click the System process and choose Properties.
4) On the TCP/IP tab, locate one of the strange outbound connections and
then hit the Stack button.

Hopefully whatever driver or dll opening the connections is listed on the
thread stack.

Then again, if it's clver the thing could be cloaking itself. In that case
try Rootkit Revealer.

Good luck,

Ted

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[ reply ]
Re: Outbound Connections Jul 07 2006 02:59AM
Joel Esler (eslerj gmail com)


 

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