  <!-- Copyright 2010 Dan Parriott (ddpbsd@gmail.com)
  -  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.gnu.org/licenses/old-licenses/gpl-2.0.html
  -->



<!-- Modify it at your will. -->

<group name="syslog,sshd,dropbear">

  <rule id="51000" level="0" noalert="1">
    <decoded_as>dropbear</decoded_as>
    <description>Grouping for dropbear rules.</description>
  </rule>

  <rule id="51001" level="1">
    <if_sid>51000</if_sid>
    <match>Failed to get kex value</match>
    <description>Failed to get key exchange value</description>
  </rule>

  <rule id="51002" level="1">
    <if_sid>51000</if_sid>
    <match>Premature kexdh_init message received</match>
    <description>Premature kexdh_init message</description>
  </rule>

  <rule id="51003" level="5">
    <if_sid>51000</if_sid>
    <match>bad password attempt for</match>
    <description>Bad password attempt.</description>
    <group>authentication_failed,</group>
  </rule>

  <rule id="51004" level="10" frequency="6" timeframe="120" ignore="60">
    <if_matched_sid>51003</if_matched_sid>
    <same_source_ip />
    <description>dropbear brute force attempt.</description>
    <group>authentication_failures,</group>
  </rule>

  <rule id="51005" level="0">
    <if_sid>51000</if_sid>
    <regex>exit after auth \(\S+\): Disconnect received</regex>
    <description>User disconnected.</description>
  </rule>

  <rule id="51006" level="2">
    <if_sid>51000</if_sid>
    <match>exit before auth</match>
    <description>Client exited before authentication.</description>
    <group>recon,</group>
  </rule>

  <rule id="51007" level="10" frequency="6" timeframe="120" ignore="60">
    <if_matched_sid>51000</if_matched_sid>
    <same_source_ip />
    <description>dropbear brute force attempt.</description> 
    <group>authentication_failures,</group>
  </rule>


  <rule id="51008" level="1">
    <if_sid>51000</if_sid>
    <match>Incompatible remote version</match>
    <description>Incompatible remote version.</description>
    <group>recon,</group>
  </rule>
 
  <rule id="51009" level="0">
    <if_sid>51000</if_sid>
    <match>password auth succeeded for</match>
    <description>User successfully logged in using a password.</description>
    <group>authentication_success,</group>
  </rule>
 
   
</group> <!-- SYSLOG,LOCAL -->


<!-- EOF -->
