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| Subject: | [Snort-users] Snort Rule to capture outbound email traffic |
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| Date: | Tue, 21 Jun 2005 14:59:41 -0400 |
I have the following snort rule setup to capture all outbound email (smtp) traffic, but, yet I have not seen any traffic. I figured that I should see an entry for each mail msg that is going outbound from my organization. alert tcp $SMTP_SERVERS any -> any 25 ( sid: 1000004; rev: 6; msg: "outgoing SMTP"; flow: to_server; content: "MAIL FROM"; nocase; classtype: misc-activity;) This is setup as a "local rule" and pushed to all my sensors. In the acid viewer I see the classtype but it doesn't contain any of the outbound msgs. Where am I going wrong? Ron Pennell rpennell@ida.org
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