(smtpauth) Failed SMTP AUTH login from 186.216.68.203 (BR/Brazil/186-216-68-203.uni-wr.mastercabo.com.br): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2020-06-29 15:38:03 plain authenticator failed for ([186.216.68.203]) [186.216.68.203]: 535 Incorrect authentication data (set_id=info@kooshanetesal.com)

Attempted Brute Force (dovecot)

Aug 30 07:47:56 mail.srvfarm.net postfix/smtps/smtpd[3605554]: warning: unknown[186.216.68.183]: SASL PLAIN authentication failed: 
Aug 30 07:47:57 mail.srvfarm.net postfix/smtps/smtpd[3605554]: lost connection after AUTH from unknown[186.216.68.183]
Aug 30 07:48:43 mail.srvfarm.net postfix/smtpd[3603899]: warning: unknown[186.216.68.183]: SASL PLAIN authentication failed: 
Aug 30 07:48:44 mail.srvfarm.net postfix/smtpd[3603899]: lost connection after AUTH from unknown[186.216.68.183]
Aug 30 07:51:40 mail.srvfarm.net postfix/smtps/smtpd[3603756]: warning: unknown[186.216.68.183]: SASL PLAIN authentication failed:

Aug 30 07:47:56 mail.srvfarm.net postfix/smtps/smtpd[3605554]: warning: unknown[186.216.68.183]: SASL PLAIN authentication failed: 
Aug 30 07:47:57 mail.srvfarm.net postfix/smtps/smtpd[3605554]: lost connection after AUTH from unknown[186.216.68.183]
Aug 30 07:48:43 mail.srvfarm.net postfix/smtpd[3603899]: warning: unknown[186.216.68.183]: SASL PLAIN authentication failed: 
Aug 30 07:48:44 mail.srvfarm.net postfix/smtpd[3603899]: lost connection after AUTH from unknown[186.216.68.183]
Aug 30 07:51:40 mail.srvfarm.net postfix/smtps/smtpd[3603756]: warning: unknown[186.216.68.183]: SASL PLAIN authentication failed:

failed_logins

Aug 27 04:33:42 mail.srvfarm.net postfix/smtps/smtpd[1331222]: warning: unknown[186.216.68.222]: SASL PLAIN authentication failed: 
Aug 27 04:33:43 mail.srvfarm.net postfix/smtps/smtpd[1331222]: lost connection after AUTH from unknown[186.216.68.222]
Aug 27 04:37:40 mail.srvfarm.net postfix/smtps/smtpd[1314660]: warning: unknown[186.216.68.222]: SASL PLAIN authentication failed: 
Aug 27 04:37:40 mail.srvfarm.net postfix/smtps/smtpd[1314660]: lost connection after AUTH from unknown[186.216.68.222]
Aug 27 04:40:50 mail.srvfarm.net postfix/smtps/smtpd[1335343]: warning: unknown[186.216.68.222]: SASL PLAIN authentication failed:

Aug 27 04:55:26 mail.srvfarm.net postfix/smtps/smtpd[1335344]: warning: unknown[186.216.68.156]: SASL PLAIN authentication failed: 
Aug 27 04:55:27 mail.srvfarm.net postfix/smtps/smtpd[1335344]: lost connection after AUTH from unknown[186.216.68.156]
Aug 27 04:58:56 mail.srvfarm.net postfix/smtpd[1336010]: warning: unknown[186.216.68.156]: SASL PLAIN authentication failed: 
Aug 27 04:58:57 mail.srvfarm.net postfix/smtpd[1336010]: lost connection after AUTH from unknown[186.216.68.156]
Aug 27 05:04:12 mail.srvfarm.net postfix/smtpd[1341948]: warning: unknown[186.216.68.156]: SASL PLAIN authentication failed:

Aug 17 05:30:57 mail.srvfarm.net postfix/smtps/smtpd[2599208]: warning: unknown[186.216.68.162]: SASL PLAIN authentication failed: 
Aug 17 05:30:57 mail.srvfarm.net postfix/smtps/smtpd[2599208]: lost connection after AUTH from unknown[186.216.68.162]
Aug 17 05:39:39 mail.srvfarm.net postfix/smtps/smtpd[2601414]: warning: unknown[186.216.68.162]: SASL PLAIN authentication failed: 
Aug 17 05:39:39 mail.srvfarm.net postfix/smtps/smtpd[2601414]: lost connection after AUTH from unknown[186.216.68.162]
Aug 17 05:39:54 mail.srvfarm.net postfix/smtps/smtpd[2602315]: warning: unknown[186.216.68.162]: SASL PLAIN authentication failed:

Aug 15 02:33:35 mail.srvfarm.net postfix/smtpd[966773]: warning: unknown[186.216.68.192]: SASL PLAIN authentication failed: 
Aug 15 02:33:36 mail.srvfarm.net postfix/smtpd[966773]: lost connection after AUTH from unknown[186.216.68.192]
Aug 15 02:34:18 mail.srvfarm.net postfix/smtps/smtpd[963401]: warning: unknown[186.216.68.192]: SASL PLAIN authentication failed: 
Aug 15 02:34:19 mail.srvfarm.net postfix/smtps/smtpd[963401]: lost connection after AUTH from unknown[186.216.68.192]
Aug 15 02:37:51 mail.srvfarm.net postfix/smtps/smtpd[969052]: warning: unknown[186.216.68.192]: SASL PLAIN authentication failed:

Jul 25 04:59:28 mail.srvfarm.net postfix/smtps/smtpd[352431]: warning: unknown[186.216.68.130]: SASL PLAIN authentication failed: 
Jul 25 04:59:29 mail.srvfarm.net postfix/smtps/smtpd[352431]: lost connection after AUTH from unknown[186.216.68.130]
Jul 25 05:08:26 mail.srvfarm.net postfix/smtps/smtpd[365292]: warning: unknown[186.216.68.130]: SASL PLAIN authentication failed: 
Jul 25 05:08:26 mail.srvfarm.net postfix/smtps/smtpd[365292]: lost connection after AUTH from unknown[186.216.68.130]
Jul 25 05:09:21 mail.srvfarm.net postfix/smtps/smtpd[365718]: lost connection after CONNECT from unknown[186.216.68.130]

Jul 24 09:46:07 mail.srvfarm.net postfix/smtps/smtpd[2158496]: warning: unknown[186.216.68.149]: SASL PLAIN authentication failed: 
Jul 24 09:46:07 mail.srvfarm.net postfix/smtps/smtpd[2158496]: lost connection after AUTH from unknown[186.216.68.149]
Jul 24 09:50:50 mail.srvfarm.net postfix/smtps/smtpd[2161003]: warning: unknown[186.216.68.149]: SASL PLAIN authentication failed: 
Jul 24 09:50:50 mail.srvfarm.net postfix/smtps/smtpd[2161003]: lost connection after AUTH from unknown[186.216.68.149]
Jul 24 09:51:17 mail.srvfarm.net postfix/smtps/smtpd[2164483]: warning: unknown[186.216.68.149]: SASL PLAIN authentication failed:

SASL PLAIN auth failed: ruser=...

2020-07-07 16:26:48 plain_virtual_exim authenticator failed for ([186.216.68.197]) [186.216.68.197]: 535 Incorrect authentication data


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=186.216.68.197

Brute force attack to crack SMTP password (port 25 / 587)

Jun 16 05:07:22 mail.srvfarm.net postfix/smtps/smtpd[917496]: warning: unknown[186.216.68.85]: SASL PLAIN authentication failed: 
Jun 16 05:07:23 mail.srvfarm.net postfix/smtps/smtpd[917496]: lost connection after AUTH from unknown[186.216.68.85]
Jun 16 05:08:17 mail.srvfarm.net postfix/smtps/smtpd[915906]: lost connection after CONNECT from unknown[186.216.68.85]
Jun 16 05:13:52 mail.srvfarm.net postfix/smtps/smtpd[935106]: warning: unknown[186.216.68.85]: SASL PLAIN authentication failed: 
Jun 16 05:13:53 mail.srvfarm.net postfix/smtps/smtpd[935106]: lost connection after AUTH from unknown[186.216.68.85]

Jun 16 05:35:15 mail.srvfarm.net postfix/smtps/smtpd[956591]: lost connection after CONNECT from unknown[186.216.68.168]
Jun 16 05:37:52 mail.srvfarm.net postfix/smtpd[953487]: warning: unknown[186.216.68.168]: SASL PLAIN authentication failed: 
Jun 16 05:37:53 mail.srvfarm.net postfix/smtpd[953487]: lost connection after AUTH from unknown[186.216.68.168]
Jun 16 05:39:49 mail.srvfarm.net postfix/smtpd[953480]: lost connection after CONNECT from unknown[186.216.68.168]
Jun 16 05:40:32 mail.srvfarm.net postfix/smtps/smtpd[937454]: warning: unknown[186.216.68.168]: SASL PLAIN authentication failed:

21 attempts against mh_ha-misbehave-ban on sonic

suspicious action Fri, 28 Feb 2020 10:26:42 -0300

Feb 28 19:59:29 web01.agentur-b-2.de postfix/smtpd[230796]: warning: unknown[185.234.217.164]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Feb 28 20:01:44 web01.agentur-b-2.de postfix/smtpd[230796]: warning: unknown[185.234.217.164]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Feb 28 20:04:01 web01.agentur-b-2.de postfix/smtpd[231922]: warning: unknown[185.234.217.164]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

Port scan: Attack repeated for 24 hours

Feb 28 13:26:31 l03 sshd[22537]: Invalid user chris from 114.55.176.185 port 49571
...

20/2/28@09:19:05: FAIL: Alarm-Network address from=138.219.252.42
...

suspicious action Fri, 28 Feb 2020 10:26:34 -0300

Feb 28 14:06:19 websrv1.aknwsrv.net postfix/smtpd[214219]: warning: unknown[183.60.156.9]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Feb 28 14:06:26 websrv1.aknwsrv.net postfix/smtpd[214219]: warning: unknown[183.60.156.9]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Feb 28 14:06:43 websrv1.aknwsrv.net postfix/smtpd[209924]: warning: unknown[183.60.156.9]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

Feb 28 21:23:09 MainVPS sshd[24767]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.85.42.176  user=root
Feb 28 21:23:11 MainVPS sshd[24767]: Failed password for root from 112.85.42.176 port 17461 ssh2
Feb 28 21:23:26 MainVPS sshd[24767]: error: maximum authentication attempts exceeded for root from 112.85.42.176 port 17461 ssh2 [preauth]
Feb 28 21:23:09 MainVPS sshd[24767]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.85.42.176  user=root
Feb 28 21:23:11 MainVPS sshd[24767]: Failed password for root from 112.85.42.176 port 17461 ssh2
Feb 28 21:23:26 MainVPS sshd[24767]: error: maximum authentication attempts exceeded for root from 112.85.42.176 port 17461 ssh2 [preauth]
Feb 28 21:23:30 MainVPS sshd[25559]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.85.42.176  user=root
Feb 28 21:23:32 MainVPS sshd[25559]: Failed password for root from 112.85.42.176 port 59714 ssh2
...

Feb 28 13:13:27 vps sshd\[20598\]: Invalid user postgres from 91.108.155.43
Feb 28 14:26:29 vps sshd\[22407\]: Invalid user postgres from 91.108.155.43
...

Feb 28 17:24:15 firewall sshd[10605]: Failed password for root from 222.186.180.9 port 51580 ssh2
Feb 28 17:24:27 firewall sshd[10605]: error: maximum authentication attempts exceeded for root from 222.186.180.9 port 51580 ssh2 [preauth]
Feb 28 17:24:27 firewall sshd[10605]: Disconnecting: Too many authentication failures [preauth]
...

Feb 28 17:16:42 web01.agentur-b-2.de dovecot: imap-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=2003:c4:1f2b:c200:f0d5:59c1:1e6a:53a4, lip=2a06:9500:1003:0:185:118:198:210, TLS, session=
Feb 28 17:16:48 web01.agentur-b-2.de dovecot: imap-login: Aborted login (auth failed, 1 attempts in 6 secs): user=, method=PLAIN, rip=2003:c4:1f2b:c200:f0d5:59c1:1e6a:53a4, lip=2a06:9500:1003:0:185:118:198:210, TLS, session=
Feb 28 17:16:54 web01.agentur-b-2.de dovecot: imap-login: Aborted login (auth failed, 1 attempts in 6 secs): user=, method=PLAIN, rip=2003:c4:1f2b:c200:f0d5:59c1:1e6a:53a4, lip=2a06:9500:1003:0:185:118:198:210, TLS, session=
Feb 28 17:16:55 web01.agentur-b-2.de dovecot: imap-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=

1582896425 - 02/28/2020 14:27:05 Host: 119.42.125.124/119.42.125.124 Port: 445 TCP Blocked

[munged]::443 51.68.215.199 - - [28/Feb/2020:18:50:16 +0100] "POST /[munged]: HTTP/1.1" 200 5714 "-" "-"
[munged]::443 51.68.215.199 - - [28/Feb/2020:18:50:31 +0100] "POST /[munged]: HTTP/1.1" 200 5714 "-" "-"
[munged]::443 51.68.215.199 - - [28/Feb/2020:18:50:31 +0100] "POST /[munged]: HTTP/1.1" 200 5714 "-" "-"
[munged]::443 51.68.215.199 - - [28/Feb/2020:18:50:47 +0100] "POST /[munged]: HTTP/1.1" 200 5714 "-" "-"
[munged]::443 51.68.215.199 - - [28/Feb/2020:18:50:47 +0100] "POST /[munged]: HTTP/1.1" 200 5714 "-" "-"
[munged]::443 51.68.215.199 - - [28/Feb/2020:18:51:03 +0100] "POST /[munged]: HTTP/1.1" 200 5714 "-" "-"

Unauthorized connection attempt detected from IP address 177.135.42.62 to port 80