<!-- @(#) $Id: ./etc/rules/imapd_rules.xml, 2011/09/08 dcid Exp $

  -  Official imapd rules for OSSEC.
  -
  -  Copyright (C) 2009 Trend Micro Inc.
  -  All rights reserved.
  -
  -  This program is a free software; you can redistribute it
  -  and/or modify it under the terms of the GNU General Public
  -  License (version 2) as published by the FSF - Free Software
  -  Foundation.
  -
  -  License details: http://www.ossec.net/en/licensing.html
  -->


<var name="IMAPD_FREQ">6</var>      

<group name="syslog,imapd,">
  <rule id="3600" level="0" noalert="1">
    <decoded_as>imapd</decoded_as>
    <description>Grouping of the imapd rules.</description>
  </rule>
  
  <rule id="3601" level="5">
    <if_sid>3600</if_sid>
    <match>Login failed user=|AUTHENTICATE LOGIN failure</match>
    <description>Imapd user login failed.</description>
    <group>authentication_failed,</group>
  </rule>

  <rule id="3602" level="3">
    <if_sid>3600</if_sid>
    <match>Authenticated user=</match>
    <description>Imapd user login.</description>
    <group>authentication_success,</group>
  </rule>
  
  <rule id="3603" level="0">
    <if_sid>3600</if_sid>
    <match>Logout user=</match>
    <description>Imapd user logout.</description>
  </rule>
  
  <rule id="3651" level="10" frequency="$IMAPD_FREQ" timeframe="120">
    <if_matched_sid>3601</if_matched_sid>
    <same_source_ip />
    <description>Multiple failed logins from same source ip.</description>
    <group>authentication_failures,</group>
  </rule>

</group> <!-- SYSLOG,IMAPD -->
