1 <!-- @(#) $Id: ./etc/rules/vsftpd_rules.xml, 2011/09/08 dcid Exp $
3 - Official vsftpd rules for OSSEC.
4 - Author: Joachim Vorrath <joachim.vorrath@vorrath-net.de>
5 - Author: Jorge Augusto Senger <jorge@br10.com.br>
6 - Author: Daniel B. Cid
7 - License: http://www.ossec.net/en/licensing.html
11 <group name="syslog,vsftpd,">
12 <rule id="11400" level="0" noalert="1">
13 <decoded_as>vsftpd</decoded_as>
14 <description>Grouping for the vsftpd rules.</description>
17 <rule id="11401" level="3">
18 <if_sid>11400</if_sid>
19 <match>CONNECT: Client</match>
20 <group>connection_attempt</group>
21 <description>FTP session opened.</description>
24 <rule id="11402" level="3">
25 <if_sid>11400</if_sid>
26 <match>OK LOGIN: </match>
27 <description>FTP Authentication success.</description>
28 <group>authentication_success,</group>
31 <rule id="11403" level="5">
32 <if_sid>11400</if_sid>
33 <match>FAIL LOGIN: </match>
34 <description>Login failed accessing the FTP server.</description>
35 <group>authentication_failed,</group>
38 <rule id="11404" level="0">
39 <if_sid>11400</if_sid>
40 <match>OK UPLOAD: </match>
41 <description>FTP server file upload.</description>
44 <rule id="11451" level="10" frequency="6" timeframe="120">
45 <if_matched_sid>11403</if_matched_sid>
47 <description>FTP brute force (multiple failed logins).</description>
48 <group>authentication_failures,</group>
51 <rule id="11452" level="10" frequency="10" timeframe="60">
52 <if_matched_sid>11401</if_matched_sid>
54 <description>Multiple FTP connection attempts from </description>
55 <description>same source IP.</description>
59 </group> <!-- SYSLOG,VSFTPD -->