[Emerging-Sigs] very curious FP 2001984

Frank Knobbe frank at knobbe.us
Thu Jul 10 12:42:30 EDT 2008


On Thu, 2008-07-10 at 11:31 -0400, Matt Jonkman wrote:
> The sigs prior to this that set the flowbit do have flow direction, so 
> those are not being honored somehow.
> 
> But we can add !$SSH_PORTS to the source in this one. That'll end your 
> FPs on it, but there is another issue. Is this sensor overloaded or 
> anything? Stream5 configured well?

Nope, you can't. If you set both ports to !$SSH_PORTS, you render the
signature useless. (Think about it :)

Instead, the <> should probably be probably be changed. I thought I had
already done that and created two directional (outbound/inbound) rules
for this. Maybe that was the other set of abnormal SSH sigs.

-Frank

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