Re: [Snort-users] ru.le to detect lots of syn pkts?

--On Friday, June 04, 2004 05:30:45 PM -0600 Rich Adamson
<radamson@routers.com> wrote:
>
> Here's a copy/paste of the exact rule:
> alert tcp $HOME_NET any -> any any (msg: "High SYN Traffic"; flags:S;
> threshold: track by_src, seconds 60, count 50, type both ;
> classtype:misc-activity; sid: 1000002; rev:1;)
>
> Obviously we've moved the parameters around, but it still barfs on
> "seconds 60" with the above order. I'm thinking this is a Win32 bug since
> upgrading to the latest build did not resolve the issue. I've played with
> spaces before/after comas, etc; no impact.
>
> Can you spot anything in the rule that I might have overlooked or just
> kept reading right through it?
>
No, the rule looks fine. I think you may be correct about the Win32 bug.
This rule works fine on unix.

Paul Schmehl (pauls@utdallas.edu)
Adjunct Information Security Officer
The University of Texas at Dallas
AVIEN Founding Member
http://www.utdallas.edu/ir/security/


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