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Add decoders to extract the username field from failed login logs of proftpd #740

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Add decoders to extract the username field from failed login logs of proftpd #740

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27 changes: 24 additions & 3 deletions decoders/0230-proftpd_decoders.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,9 @@
- proftpd[2344]: refused connect from 192.168.1.2 (192.168.1.2)
- proftpd[15181]: valhalla (crawl-66-249-66-80.googlebot.com[66.249.66.80]) - Connection from crawl-66-249-66-80.googlebot.com [66.249.66.80] denied.
- proftpd[26169] server.example.net: Fatal: unable to open incoming connection: Der Socket ist nicht verbunden
- proftpd[13378]: 10.22.136.85 (111.250.52.78[111.250.52.78]) - USER root (Login failed): Incorrect password
- proftpd[17655]: 10.22.136.85 (10.22.126.169[10.22.126.169]) - USER cronftp (Login failed): authentication via 'ssh-dss' public key failed
- proftpd[19969]: 10.22.136.85 (10.22.33.14[10.22.33.14]) - USER anonymous: no such user found from 10.22.33.14 [10.22.33.14] to ::ffff:10.22.136.85:21
-->
<decoder name="proftpd">
<program_name>^proftpd</program_name>
Expand All @@ -31,8 +34,26 @@
<fts>name, user, srcip, location</fts>
</decoder>

<decoder name="proftpd-ip">
<decoder name="proftpd-fail_password">
<parent>proftpd</parent>
<regex>^\S+ \(\S+[(\S+)]\)|^\S+ \(\S+[(\S+)]\)</regex>
<order>srcip</order>
<prematch> \(Login failed\): Incorrect password</prematch>
<regex>^\S+ \(\S+[(\S+)]\)\s*\S \w+ (\S+) </regex>
<regex>\(Login failed\): Incorrect password</regex>
<order>srcip, srcuser</order>
</decoder>

<decoder name="proftpd-fail_publickey">
<parent>proftpd</parent>
<prematch> \(Login failed\): authentication via '\S+' public key failed</prematch>
<regex>^\S+ \\S+[(\S+)]\)\s*\S \w+ (\S+) </regex>
<regex>\(Login failed\): authentication via '\S+' public key failed</regex>
<order>srcip, srcuser</order>
</decoder>

<decoder name="proftpd-non_existent">
<parent>proftpd</parent>
<prematch>: no such user found from </prematch>
<regex>^\S+ \(\S+[(\S+)]\)\s*\S \w+ (\S+): </regex>
<regex>no such user found from \S+ [\S+] to \S+</regex>
<order>srcip, srcuser</order>
</decoder>