Snort mailing list archives

Re: Snort Alert [1:xx] - sid-msg.map looks correct


From: Y M <snort () outlook com>
Date: Wed, 16 Jul 2014 18:31:56 +0000

Since the signature is in the database already, you may need to update the record with the appropriate alert message.
Assuming that Snorby uses the "event" table to store/retrieve alert data:
First, very that you are getting the right record for that particular rule (after you connect to the database):
SELECT * FROM event WHERE signature_id=1000156;
If it is the one you are looking for, then issue an update:
UPDATE event SET signature="American Express card number detected in clear text" WHERE signature_id=1000156;
Finally, if you are using specific policy with PulledPork, I would recommend that you add a metadata to your signature 
specifying the policy you are after. For example: "metadata: policy balanced-ips drop;" for a balanced policy.
YM
Date: Wed, 16 Jul 2014 13:21:31 -0400
From: rehnquyst () gmail com
To: snort-users () lists sourceforge net
Subject: [Snort-users] Snort Alert [1:xx] - sid-msg.map looks correct

Hi,
I've added some custom rules I grabbed from SANS, and changed them a little bit to look like this:
alert tcp any any <> any any (msg:"American Express card number detected in clear 
text";pcre:"/3\d{3}(\s|-)?\d{6}(\s|-)?\d{5}/";content:"amex";nocase;sid:1000156;rev:1;)


Pulledpork update seems to have generated the sid-msg.map correctly, because this alert does show up in the file:
1000156 || American Express card number detected in clear text


However, in my frontend, Snorby, the alerts are showing up "Snort Alert [1:1000156:1], which from my research seem to 
indicate that it's because either sid-msg.map isn't update (which it is), or barnyard2 wasn't restarted. I've rebooted 
the server, so barnyard2 should have restarted correctly.

Was there something I missed?
Thanks!Rehn

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