1 <!-- @(#) $Id: ./etc/rules/ms-exchange_rules.xml, 2011/09/08 dcid Exp $
3 - Example of MS Exchange rules for OSSEC.
5 - Copyright (C) 2009 Trend Micro Inc.
8 - This program is a free software; you can redistribute it
9 - and/or modify it under the terms of the GNU General Public
10 - License (version 2) as published by the FSF - Free Software
13 - License details: http://www.ossec.net/en/licensing.html
17 <!-- Still BETA - anyone using it? -->
20 <group name="ms,exchange,">
21 <rule id="3800" level="0">
22 <decoded_as>msexchange</decoded_as>
23 <description>Grouping of Exchange rules.</description>
26 <rule id="3801" level="4">
30 <description>E-mail rcpt is not valid (invalid account).</description>
34 <rule id="3802" level="4">
37 <description>E-mail 500 error code.</description>
41 <rule id="3851" level="9" frequency="10" timeframe="120" ignore="120">
42 <if_matched_sid>3801</if_matched_sid>
44 <description>Multiple e-mail attempts to an invalid account.</description>
45 <group>multiple_spam,</group>
48 <rule id="3852" level="9" frequency="12" timeframe="120" ignore="240">
49 <if_matched_sid>3802</if_matched_sid>
51 <description>Multiple e-mail 500 error code (spam).</description>
52 <group>multiple_spam,</group>
56 </group> <!-- MS,Exchange -->