2020-09-13 12:51:34 server sshd[31299]: Failed password for invalid user enablediag from 106.12.91.36 port 50618 ssh2

Sep 14 00:50:14 gamehost-one sshd[8015]: Failed password for root from 106.12.91.36 port 58800 ssh2
Sep 14 00:57:53 gamehost-one sshd[8604]: Failed password for root from 106.12.91.36 port 59492 ssh2
...

Invalid user postgres from 106.12.91.36 port 56302

Aug 20 01:23:46 cosmoit sshd[11985]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.91.36

Jul 23 09:43:04 eventyay sshd[18819]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.91.36
Jul 23 09:43:06 eventyay sshd[18819]: Failed password for invalid user nnn from 106.12.91.36 port 33682 ssh2
Jul 23 09:48:25 eventyay sshd[19005]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.91.36
...

Jul 10 01:49:25 firewall sshd[12251]: Invalid user cnctmp from 106.12.91.36
Jul 10 01:49:27 firewall sshd[12251]: Failed password for invalid user cnctmp from 106.12.91.36 port 46276 ssh2
Jul 10 01:53:18 firewall sshd[12370]: Invalid user jeremae from 106.12.91.36
...

Jul  5 06:09:37 haigwepa sshd[2206]: Failed password for root from 106.12.91.36 port 52094 ssh2
...

Invalid user kafka from 106.12.91.36 port 40490

Invalid user kafka from 106.12.91.36 port 40490

$f2bV_matches

Invalid user admin from 106.12.91.36 port 45942

$f2bV_matches

SSH bruteforce

Invalid user cholet from 106.12.91.36 port 48222

May  8 15:09:19 server sshd[29850]: Failed password for root from 106.12.91.36 port 46956 ssh2
May  8 15:18:24 server sshd[30555]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.91.36
May  8 15:18:27 server sshd[30555]: Failed password for invalid user vijay from 106.12.91.36 port 34960 ssh2
...

Fail2Ban Ban Triggered (2)

Invalid user sz from 106.12.91.36 port 47834

$f2bV_matches

Mar  4 18:45:56 firewall sshd[22111]: Invalid user debian from 106.12.91.36
Mar  4 18:45:59 firewall sshd[22111]: Failed password for invalid user debian from 106.12.91.36 port 44926 ssh2
Mar  4 18:54:28 firewall sshd[22283]: Invalid user patrol from 106.12.91.36
...

Feb 25 16:29:59 tdfoods sshd\[19726\]: Invalid user zabbix from 106.12.91.36
Feb 25 16:29:59 tdfoods sshd\[19726\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.91.36
Feb 25 16:30:01 tdfoods sshd\[19726\]: Failed password for invalid user zabbix from 106.12.91.36 port 45646 ssh2
Feb 25 16:36:24 tdfoods sshd\[20270\]: Invalid user rizon from 106.12.91.36
Feb 25 16:36:24 tdfoods sshd\[20270\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.91.36

Feb  6 00:11:19 game-panel sshd[21238]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.91.36
Feb  6 00:11:22 game-panel sshd[21238]: Failed password for invalid user sko from 106.12.91.36 port 34564 ssh2
Feb  6 00:14:00 game-panel sshd[21354]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.91.36

Feb  3 02:46:42 main sshd[6579]: Failed password for invalid user vds from 106.12.91.36 port 34188 ssh2

Oct  6 02:26:12 gw1 sshd[13066]: Failed password for root from 106.12.91.225 port 38314 ssh2
...

Oct  5 09:38:59 NPSTNNYC01T sshd[12686]: Failed password for root from 106.12.91.225 port 42708 ssh2
Oct  5 09:41:31 NPSTNNYC01T sshd[12761]: Failed password for root from 106.12.91.225 port 41772 ssh2
...

2020-10-05T05:14:54.654022centos sshd[27811]: Failed password for root from 106.12.91.225 port 51892 ssh2
2020-10-05T05:17:18.296030centos sshd[27977]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.91.225  user=root
2020-10-05T05:17:20.916682centos sshd[27977]: Failed password for root from 106.12.91.225 port 51016 ssh2
...

SSH login attempts.

Invalid user web224 from 106.12.91.225 port 41078

Port scan: Attack repeated for 24 hours

Jul 22 03:59:19 scw-tender-jepsen sshd[12341]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.91.209
Jul 22 03:59:21 scw-tender-jepsen sshd[12341]: Failed password for invalid user speedtest from 106.12.91.209 port 55980 ssh2

Jun 13 00:07:24 Tower sshd[9430]: Connection from 106.12.91.102 port 44428 on 192.168.10.220 port 22 rdomain ""
Jun 13 00:07:26 Tower sshd[9430]: Failed password for root from 106.12.91.102 port 44428 ssh2
Jun 13 00:07:26 Tower sshd[9430]: Received disconnect from 106.12.91.102 port 44428:11: Bye Bye [preauth]
Jun 13 00:07:26 Tower sshd[9430]: Disconnected from authenticating user root 106.12.91.102 port 44428 [preauth]

Jun 11 11:50:21 buvik sshd[20119]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.91.209
Jun 11 11:50:23 buvik sshd[20119]: Failed password for invalid user 123456 from 106.12.91.209 port 36358 ssh2
Jun 11 11:54:06 buvik sshd[20606]: Invalid user eszrdx from 106.12.91.209
...

Jun  9 07:15:41 OPSO sshd\[19219\]: Invalid user nrpe from 106.12.91.102 port 49554
Jun  9 07:15:41 OPSO sshd\[19219\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.91.102
Jun  9 07:15:44 OPSO sshd\[19219\]: Failed password for invalid user nrpe from 106.12.91.102 port 49554 ssh2
Jun  9 07:17:41 OPSO sshd\[19296\]: Invalid user user7 from 106.12.91.102 port 49094
Jun  9 07:17:41 OPSO sshd\[19296\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.91.102

Jun  7 00:01:50 vps647732 sshd[7555]: Failed password for root from 106.12.91.102 port 34140 ssh2
...

Jun  4 17:37:48 ny01 sshd[18403]: Failed password for root from 106.12.91.102 port 37298 ssh2
Jun  4 17:39:48 ny01 sshd[18670]: Failed password for root from 106.12.91.102 port 37558 ssh2

Jun  1 00:29:12 ajax sshd[31044]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.91.209 
Jun  1 00:29:14 ajax sshd[31044]: Failed password for invalid user 3H8IDC!!#g\r from 106.12.91.209 port 37312 ssh2

bruteforce detected

May 12 07:51:25 meumeu sshd[8196]: Failed password for root from 106.12.91.209 port 53480 ssh2
May 12 07:57:13 meumeu sshd[8951]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.91.209 
May 12 07:57:15 meumeu sshd[8951]: Failed password for invalid user max from 106.12.91.209 port 34688 ssh2
...

Rude login attack (49 tries in 1d)

$f2bV_matches

Oct 14 21:51:06 imap-login: Info: Disconnected \(no auth attempts in 4 secs\): user=\<\>, rip=69.12.72.78, lip=192.168.100.101, session=\\
Oct 14 21:51:29 imap-login: Info: Disconnected \(auth failed, 1 attempts in 5 secs\): user=\, method=PLAIN, rip=69.12.72.78, lip=192.168.100.101, session=\\
Oct 14 21:51:35 imap-login: Info: Disconnected \(no auth attempts in 0 secs\): user=\<\>, rip=69.12.72.78, lip=192.168.100.101, session=\\
Oct 14 21:51:36 imap-login: Info: Disconnected \(no auth attempts in 0 secs\): user=\<\>, rip=69.12.72.78, lip=192.168.100.101, session=\\
Oct 14 21:51:44 imap-login: Info: Disconnected \(no auth attempts in 8 secs\): user=\<\>, rip=69.12.72.78, lip=192.168.100.101, session=\\
Oct 14 21:51:51 imap-login: Info: Disconnected \(no auth attempts in 0 secs\): user=\<\>, rip=69.12.72.78, lip=192.168.100.101, session=\<9N3qMuSUsgBFDEhO\>\
Oct 14 21:52:17 imap-login: Info:

Oct 14 21:51:13 imap-login: Info: Disconnected \(auth failed, 1 attempts in 8 secs\): user=\, method=PLAIN, rip=178.124.166.216, lip=192.168.100.101, session=\\
Oct 14 21:51:13 imap-login: Info: Disconnected \(auth failed, 1 attempts in 8 secs\): user=\, method=PLAIN, rip=178.124.166.216, lip=192.168.100.101, session=\\
Oct 14 21:51:25 imap-login: Info: Disconnected \(auth failed, 1 attempts in 14 secs\): user=\, method=PLAIN, rip=178.124.166.216, lip=192.168.100.101, session=\\
Oct 14 21:51:44 imap-login: Info: Disconnected \(auth failed, 1 attempts in 5 secs\): user=\, method=PLAIN, rip=178.124.166.216, lip=192.168.100.101, session=\\
Oct 14 21:51:44 imap-login: Info: Disconnected \(auth failed, 1 attempts in 6 secs\): user=\, method=PLAIN, rip=178.124.166.216, lip=192.168.100.101, session=\<67YsMuSUBgCyfKbY\>\
Oct 14 21

Oct 15 01:09:49 Ubuntu-1404-trusty-64-minimal sshd\[26813\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=76.186.81.229  user=root
Oct 15 01:09:50 Ubuntu-1404-trusty-64-minimal sshd\[26813\]: Failed password for root from 76.186.81.229 port 59073 ssh2
Oct 15 01:18:29 Ubuntu-1404-trusty-64-minimal sshd\[1634\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=76.186.81.229  user=root
Oct 15 01:18:32 Ubuntu-1404-trusty-64-minimal sshd\[1634\]: Failed password for root from 76.186.81.229 port 59847 ssh2
Oct 15 01:23:39 Ubuntu-1404-trusty-64-minimal sshd\[8057\]: Invalid user user from 76.186.81.229

Oct 14 11:10:48 kmh-wsh-001-nbg03 sshd[15292]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=207.154.246.152  user=r.r
Oct 14 11:10:50 kmh-wsh-001-nbg03 sshd[15292]: Failed password for r.r from 207.154.246.152 port 40914 ssh2
Oct 14 11:10:50 kmh-wsh-001-nbg03 sshd[15292]: Received disconnect from 207.154.246.152 port 40914:11: Bye Bye [preauth]
Oct 14 11:10:50 kmh-wsh-001-nbg03 sshd[15292]: Disconnected from 207.154.246.152 port 40914 [preauth]
Oct 14 11:21:20 kmh-wsh-001-nbg03 sshd[15688]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=207.154.246.152  user=r.r
Oct 14 11:21:22 kmh-wsh-001-nbg03 sshd[15688]: Failed password for r.r from 207.154.246.152 port 34972 ssh2
Oct 14 11:21:22 kmh-wsh-001-nbg03 sshd[15688]: Received disconnect from 207.154.246.152 port 34972:11: Bye Bye [preauth]
Oct 14 11:21:22 kmh-wsh-001-nbg03 sshd[15688]: Disconnected from 207.154.246.152 port 34972 [preauth]
........
-------------------------------

Scanning and Vuln Attempts

Oct 15 05:54:52 srv206 sshd[31044]: Invalid user ij from 23.94.133.72
Oct 15 05:54:52 srv206 sshd[31044]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=23.94.133.72
Oct 15 05:54:52 srv206 sshd[31044]: Invalid user ij from 23.94.133.72
Oct 15 05:54:54 srv206 sshd[31044]: Failed password for invalid user ij from 23.94.133.72 port 47746 ssh2
...

\[2019-10-14 23:55:00\] NOTICE\[1887\] chan_sip.c: Registration from '"905" \' failed for '185.53.88.102:5553' - Wrong password
\[2019-10-14 23:55:00\] SECURITY\[1898\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-10-14T23:55:00.926-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="905",SessionID="0x7fc3ac686538",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.53.88.102/5553",Challenge="5896bd61",ReceivedChallenge="5896bd61",ReceivedHash="1abc82492d6a940936cd1e0885a71128"
\[2019-10-14 23:55:01\] NOTICE\[1887\] chan_sip.c: Registration from '"905" \' failed for '185.53.88.102:5553' - Wrong password
\[2019-10-14 23:55:01\] SECURITY\[1898\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-10-14T23:55:01.033-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="905",SessionID="0x7fc3ad1ec8e8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.

Oct 14 21:51:26 imap-login: Info: Disconnected \(no auth attempts in 0 secs\): user=\<\>, rip=85.35.64.82, lip=192.168.100.101, session=\\
Oct 14 21:51:34 imap-login: Info: Disconnected \(auth failed, 1 attempts in 13 secs\): user=\, method=PLAIN, rip=85.35.64.82, lip=192.168.100.101, session=\\
Oct 14 21:51:35 imap-login: Info: Disconnected \(auth failed, 1 attempts in 12 secs\): user=\, method=PLAIN, rip=85.35.64.82, lip=192.168.100.101, session=\\
Oct 14 21:51:37 imap-login: Info: Disconnected \(no auth attempts in 0 secs\): user=\<\>, rip=85.35.64.82, lip=192.168.100.101, session=\\
Oct 14 21:51:38 imap-login: Info: Disconnected \(auth failed, 1 attempts in 11 secs\): user=\, method=PLAIN, rip=85.35.64.82, lip=192.168.100.101, session=\\
Oct 14 21:52:07 imap-login: Info: Disconnected \(auth failed, 1 attempts in 21 secs\): user=\

Oct 14 21:51:14 imap-login: Info: Disconnected \(auth failed, 1 attempts in 8 secs\): user=\, method=PLAIN, rip=93.61.141.84, lip=192.168.100.101, session=\\
Oct 14 21:51:34 imap-login: Info: Disconnected \(auth failed, 1 attempts in 4 secs\): user=\, method=PLAIN, rip=93.61.141.84, lip=192.168.100.101, session=\\
Oct 14 21:52:19 imap-login: Info: Disconnected \(auth failed, 1 attempts in 6 secs\): user=\, method=PLAIN, rip=93.61.141.84, lip=192.168.100.101, session=\\
Oct 14 21:52:22 imap-login: Info: Disconnected \(auth failed, 1 attempts in 11 secs\): user=\, method=PLAIN, rip=93.61.141.84, lip=192.168.100.101, session=\\
Oct 14 21:52:30 imap-login: Info: Disconnected \(no auth attempts in 0 secs\): user=\<\>, rip=93.61.141.84, lip=192.168.100.101, session=\\
Oct 14 21:52:35 imap-login: Info: Disconnected \(no auth attempts in

Oct 14 23:46:10 master sshd[5038]: Failed password for root from 106.12.189.235 port 35310 ssh2

detected by Fail2Ban

[munged]::80 78.36.44.104 - - [15/Oct/2019:00:19:26 +0200] "POST /[munged]: HTTP/1.1" 200 5232 "http://[munged]:/[munged]:" "Mozilla/5.0 (Windows NT 6.1; rv:60.0) Gecko/20100101 Firefox/60.0"
[munged]::80 78.36.44.104 - - [15/Oct/2019:00:19:28 +0200] "POST /[munged]: HTTP/1.1" 200 5231 "http://[munged]:/[munged]:" "Mozilla/5.0 (Windows NT 6.1; rv:60.0) Gecko/20100101 Firefox/60.0"
[munged]::80 78.36.44.104 - - [15/Oct/2019:00:19:30 +0200] "POST /[munged]: HTTP/1.1" 200 5231 "http://[munged]:/[munged]:" "Mozilla/5.0 (Windows NT 6.1; rv:60.0) Gecko/20100101 Firefox/60.0"
[munged]::80 78.36.44.104 - - [15/Oct/2019:00:19:34 +0200] "POST /[munged]: HTTP/1.1" 200 5231 "http://[munged]:/[munged]:" "Mozilla/5.0 (Windows NT 6.1; rv:60.0) Gecko/20100101 Firefox/60.0"
[munged]::80 78.36.44.104 - - [15/Oct/2019:00:19:39 +0200] "POST /[munged]: HTTP/1.1" 200 5235 "http://[munged]:/[munged]:" "Mozilla/5.0 (Windows NT 6.1; rv:60.0) Gecko/20100101 Firefox/60.0"
[munged]::80 78.36.44.104 - - [15/Oct/2019:00:19:41 +0200] "POST

Oct1423:44:05server2dovecot:imap-login:Abortedlogin\(authfailed\,1attemptsin2secs\):user=\\,method=PLAIN\,rip=31.27.187.140\,lip=81.17.25.230\,session=\Oct1423:44:11server2dovecot:imap-login:Abortedlogin\(authfailed\,1attemptsin6secs\):user=\\,method=PLAIN\,rip=31.27.187.140\,lip=81.17.25.230\,session=\Oct1423:44:11server2dovecot:imap-login:Abortedlogin\(authfailed\,1attemptsin6secs\):user=\\,method=PLAIN\,rip=31.27.187.140\,lip=81.17.25.230\,session=\Oct1423:44:23server2dovecot:imap-login:Abortedlogin\(authfailed\,1attemptsin6secs\):user=\\,method=PLAIN\,rip=31.27.187.140\,lip=81.17.25.230\,session=\Oct1423:44:25server2dovecot:imap-login:Abortedlogin\(authfailed\,1attemptsin2secs\):user=\\,method=PLAIN\,rip=31.27.187.140\,lip=81.17.25.230\,session=\Oct1423:44:25server2dovecot:imap-login:Abortedlogin\(authfailed\,1attemptsin2secs\):user=\