2 - Example of Microsoft FTP rules for OSSEC.
4 - Copyright (C) 2009 Trend Micro Inc.
7 - This program is a free software; you can redistribute it
8 - and/or modify it under the terms of the GNU General Public
9 - License (version 2) as published by the FSF - Free Software
12 - License details: http://www.ossec.net/en/licensing.html
16 <group name="syslog,msftp,">
17 <rule id="11500" level="0">
18 <decoded_as>msftp</decoded_as>
19 <description>Grouping for the Microsoft ftp rules.</description>
22 <rule id="11501" level="3">
23 <if_sid>11500</if_sid>
25 <description>New FTP connection.</description>
26 <group>connection_attempt,</group>
29 <rule id="11502" level="5">
30 <if_sid>11500</if_sid>
33 <description>FTP Authentication failed.</description>
34 <group>authentication_failed,</group>
37 <rule id="11503" level="3">
38 <if_sid>11500</if_sid>
41 <description>FTP Authentication success.</description>
42 <group>authentication_success,</group>
45 <rule id="11504" level="4">
46 <if_sid>11500</if_sid>
48 <description>FTP client request failed.</description>
51 <rule id="11510" level="10" frequency="6" timeframe="120">
52 <if_matched_sid>11502</if_matched_sid>
53 <description>FTP brute force (multiple failed logins).</description>
54 <group>authentication_failures,</group>
57 <rule id="11511" level="10" frequency="8" timeframe="30">
58 <if_matched_sid>11501</if_matched_sid>
60 <description>Multiple connection attempts from same source.</description>
64 <rule id="11512" level="10" frequency="6" timeframe="120">
65 <if_matched_sid>11504</if_matched_sid>
67 <description>Multiple FTP errors from same source.</description>
69 </group> <!-- SYSLOG,PURE-FTPD -->