*Hi *
*I find many of this entry im my dovecot.log in my mailserver (iredmail):*
Nov 13 22:42:42 imap-login: Info: Disconnected (auth failed, 1 attempts in
5 secs): user=<administra...@cacirro.it>, method=PLAIN, rip=114.99.51.25,
lip=10.12.14.11, TLS, session=</10zspJ6euJyYzMZ>
*I see this in the Splunk interface installed on my ossec server:*
** Alert 1542145364.10111054: mail - syslog,errors,
2018 Nov 13 22:42:44 (mailserver.cacirro.it) 10.12.14.11->/var/log/messages
Rule: 1002 (level 2) -> 'Unknown problem somewhere in the system.'
Nov 13 22:42:43 mailserver dovecot Nov 13 22:42:42 imap-login: Info:
Disconnected (auth failed, 1 attempts in 5 secs):
user=<administra...@cacirro.it>, method=PLAIN, rip=114.99.51.25,
lip=10.12.14.11, TLS, session=</10zspJ6euJyYzMZ>
*If I test this on my ossec server I get this result:*
[root@serverossec bin]# ./ossec-logtest
2018/11/13 22:56:24 ossec-testrule: INFO: Reading local decoder file.
2018/11/13 22:56:24 ossec-testrule: INFO: Started (pid: 2055).
ossec-testrule: Type one log per line.
Nov 13 22:42:42 imap-login: Info: Disconnected (auth failed, 1 attempts in
5 secs): user=<administra...@cacirro.it>, method=PLAIN, rip=114.99.51.25,
lip=10.12.14.11, TLS, session=</10zspJ6euJyYzMZ>
**Phase 1: Completed pre-decoding.
full event: 'Nov 13 22:42:42 imap-login: Info: Disconnected (auth
failed, 1 attempts in 5 secs): user=<administra...@cacirro.it>,
method=PLAIN, rip=114.99.51.25, lip=10.12.14.11, TLS,
session=</10zspJ6euJyYzMZ>'
hostname: 'serverossec'
program_name: 'imap-login'
log: 'Info: Disconnected (auth failed, 1 attempts in 5 secs):
user=<administra...@cacirro.it>, method=PLAIN, rip=114.99.51.25,
lip=10.12.14.11, TLS, session=</10zspJ6euJyYzMZ>'
**Phase 2: Completed decoding.
No decoder matched.
**Phase 3: Completed filtering (rules).
Rule id: '1002'
Level: '2'
Description: 'Unknown problem somewhere in the system.'
**Alert to be generated.
I want trigger a 'active response' for this IP...
Thanks for your time Dan..
gb
Il giorno lunedì 12 novembre 2018 19:37:05 UTC+1, Giorgio Biondi ha scritto:
>
> Hi at all,
>
> I have new issue with dovecot.. I have another mail server (Iredmail) with
> ossec agent install on it..
> I have many record from ossec server like this: (cacirro.it It's a
> fictional domain ... I apologize for the real cacirri in the world)
>
> ** Alert 1542045111.8818974: mail - syslog,errors, 2018 Nov 12 18:51:51 (
> mailserver.tech2.it) 10.12.14.11->/var/log/messages Rule: 1002 (level 2) ->
> 'Unknown problem somewhere in the system.' Nov 12 18:51:51 mailserver
> dovecot Nov 12 18:51:49 imap-login: Info: Disconnected (auth failed, 1
> attempts in 6 secs): user=<i...@cacirro.it>, method=PLAIN, rip=154.64.218.
> 77, lip=10.12.14.11, TLS, session=<mYSbWnt6E9aaQNpN>
>
>
> I have try to put log in ossec-logtest.. here the result..
>
> [root@serverossec ~]# /var/ossec/bin/ossec-logtest
> 2018/11/12 19:26:14 ossec-testrule: INFO: Reading local decoder file.
> 2018/11/12 19:26:15 ossec-testrule: INFO: Started (pid: 29461).
> ossec-testrule: Type one log per line.
>
> Nov 12 18:51:51 mailserver dovecot Nov 12 18:51:49 imap-login: Info:
> Disconnected (auth failed, 1 attempts in 6 secs): user=<i...@cacirro.it>,
> method=PLAIN, rip=154.64.218.77, lip=10.12.14.11, TLS,
> session=<mYSbWnt6E9aaQNpN>
>
>
> **Phase 1: Completed pre-decoding.
> full event: 'Nov 12 18:51:51 mailserver dovecot Nov 12 18:51:49
> imap-login: Info: Disconnected (auth failed, 1 attempts in 6 secs): user=<
> i...@cacirro.it>, method=PLAIN, rip=154.64.218.77, lip=10.12.14.11, TLS,
> session=<mYSbWnt6E9aaQNpN>'
> hostname: 'mailserver'
> program_name: '(null)'
> log: 'dovecot Nov 12 18:51:49 imap-login: Info: Disconnected (auth
> failed, 1 attempts in 6 secs): user=<i...@cacirro.it>, method=PLAIN,
> rip=154.64.218.77, lip=10.12.14.11, TLS, session=<mYSbWnt6E9aaQNpN>'
>
> **Phase 2: Completed decoding.
> No decoder matched.
>
> **Phase 3: Completed filtering (rules).
> Rule id: '1002'
> Level: '2'
> Description: 'Unknown problem somewhere in the system.'
> **Alert to be generated.
>
>
> I would like it to trigger an 'auth failed' rule so I can trigger active
> response.
>
> All the best.
>
>
>
>
--
---
You received this message because you are subscribed to the Google Groups
"ossec-list" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to ossec-list+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
