Snort mailing list archives

Re: WEB-CLIENT Excel malformed FBI record - False positive?


From: Jack Pepper <pepperjack () afferentsecurity com>
Date: Tue, 08 Jul 2008 07:51:39 -0500

[Replies are inline]

Quoting Jesper Skou Jensen <jesper.skou.jensen () uni-c dk>:

1. The user client is on the outside of our network and is accessing one
of our servers on the inside.

No No No. you've got it backwards.

2. This rule must be triggered because of a already established
connection, like this.

Initial connnection
outside_client:highport -> inside_server:80

Response when user downloads
inside_server:80 -> outside_client:highport

Correct?

No.  The session sets up as "inside_server:high_port ->  
outside_client:80".  It's probably one of your workstations, not one  
of your servers.

That is exactly what is happening. A outside user is downloading a word
document from one of the servers.

No.  An *inside* user is downloading a word doc from an *outside* server.

Thanks for clearing that up for me.

It seems I really didn't do that very well.  ;/

jp

-- 

Framework?  I don't need no stinking framework!

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