[Snort-users] strange data

Andrew R. Baker andrewb at ...950...
Thu Nov 1 09:35:07 EST 2001


Leonardo Rodrigues wrote:
> 
> 
>     I got with snort a very strange traffic flowing from one of my NT
> servers apparently for a LOT of internet broadcast addresses. They are
> being correctly NOT forwarded by my firewall ( linux+ipchains ). But, I
> dont have any idea of WHAT can be generating this strange traffic. Its
> being originated on 1029/udp port, and snort log shows:
>
[snip]
> 
>     Do you have any idea of what can be generating this traffic ??
> 

IIRC, Windows 2000 (and possibly others) will bind some of the netbios
services to high number ports.  I would suggest using the FPipe utility
(http://www.foundstone.com/rdlabs/tools.php) to determine what
application is bound to the port.

-Andrew




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