SSH invalid-user multiple login try

2019-07-05 21:49:13 1hjUCm-0000QU-QO SMTP connection from \(1.186.46.26.dvois.com\) \[1.186.46.26\]:22089 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-07-05 21:49:50 1hjUDN-0000R3-LC SMTP connection from \(1.186.46.26.dvois.com\) \[1.186.46.26\]:22339 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-07-05 21:50:14 1hjUDl-0000TF-M8 SMTP connection from \(1.186.46.26.dvois.com\) \[1.186.46.26\]:22491 I=\[193.107.88.166\]:25 closed by DROP in ACL
...

Unauthorized IMAP connection attempt

Mar 11 04:02:25 OPSO sshd\[32224\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=1.186.45.162  user=root
Mar 11 04:02:27 OPSO sshd\[32224\]: Failed password for root from 1.186.45.162 port 34628 ssh2
Mar 11 04:04:41 OPSO sshd\[32353\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=1.186.45.162  user=root
Mar 11 04:04:43 OPSO sshd\[32353\]: Failed password for root from 1.186.45.162 port 41550 ssh2
Mar 11 04:06:57 OPSO sshd\[32642\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=1.186.45.162  user=root

Port probing on unauthorized port 22

suspicious action Thu, 27 Feb 2020 11:19:27 -0300

Dec 23 05:48:31 srv01 sshd[25729]: Invalid user test from 1.186.45.250 port 47926
Dec 23 05:48:31 srv01 sshd[25729]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=1.186.45.250
Dec 23 05:48:31 srv01 sshd[25729]: Invalid user test from 1.186.45.250 port 47926
Dec 23 05:48:32 srv01 sshd[25729]: Failed password for invalid user test from 1.186.45.250 port 47926 ssh2
Dec 23 05:54:23 srv01 sshd[26106]: Invalid user server from 1.186.45.250 port 50096
...

2019-12-20T07:00:49.987996  sshd[1043]: Invalid user samuil from 1.186.45.250 port 39133
2019-12-20T07:00:50.002559  sshd[1043]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=1.186.45.250
2019-12-20T07:00:49.987996  sshd[1043]: Invalid user samuil from 1.186.45.250 port 39133
2019-12-20T07:00:51.759178  sshd[1043]: Failed password for invalid user samuil from 1.186.45.250 port 39133 ssh2
2019-12-20T07:07:29.851139  sshd[1170]: Invalid user guest from 1.186.45.250 port 43039
...

2019-12-18T10:13:01.070041abusebot-2.cloudsearch.cf sshd\[18226\]: Invalid user ekeren from 1.186.45.250 port 34919
2019-12-18T10:13:01.078887abusebot-2.cloudsearch.cf sshd\[18226\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=1.186.45.250
2019-12-18T10:13:02.431511abusebot-2.cloudsearch.cf sshd\[18226\]: Failed password for invalid user ekeren from 1.186.45.250 port 34919 ssh2
2019-12-18T10:22:20.544182abusebot-2.cloudsearch.cf sshd\[18241\]: Invalid user gorenflos from 1.186.45.250 port 54669

Nov 21 07:18:05 h2177944 sshd\[5937\]: Invalid user rootmail from 1.186.45.250 port 55139
Nov 21 07:18:05 h2177944 sshd\[5937\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=1.186.45.250
Nov 21 07:18:08 h2177944 sshd\[5937\]: Failed password for invalid user rootmail from 1.186.45.250 port 55139 ssh2
Nov 21 07:22:42 h2177944 sshd\[6086\]: Invalid user 123abcdef from 1.186.45.250 port 44759
...

Nov 13 00:41:51 web9 sshd\[18426\]: Invalid user web_admin from 1.186.45.250
Nov 13 00:41:51 web9 sshd\[18426\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=1.186.45.250
Nov 13 00:41:53 web9 sshd\[18426\]: Failed password for invalid user web_admin from 1.186.45.250 port 45323 ssh2
Nov 13 00:46:09 web9 sshd\[18970\]: Invalid user schmedling from 1.186.45.250
Nov 13 00:46:09 web9 sshd\[18970\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=1.186.45.250

SSH Brute Force, server-1 sshd[29830]: Failed password for root from 1.186.45.250 port 55833 ssh2

Nov  6 16:51:41 vps01 sshd[5908]: Failed password for root from 1.186.45.250 port 52243 ssh2
Nov  6 16:58:39 vps01 sshd[5972]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=1.186.45.250

Nov  5 11:26:02 fr01 sshd[6989]: Invalid user whitehat from 1.186.45.250
Nov  5 11:26:02 fr01 sshd[6989]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=1.186.45.250
Nov  5 11:26:02 fr01 sshd[6989]: Invalid user whitehat from 1.186.45.250
Nov  5 11:26:05 fr01 sshd[6989]: Failed password for invalid user whitehat from 1.186.45.250 port 43156 ssh2
Nov  5 11:47:36 fr01 sshd[10902]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=1.186.45.250  user=root
Nov  5 11:47:39 fr01 sshd[10902]: Failed password for root from 1.186.45.250 port 50232 ssh2
...

2019-10-28 07:53:10,216 fail2ban.actions        \[1516\]: NOTICE  \[sshd\] Ban 1.186.45.250
2019-10-28 08:25:47,185 fail2ban.actions        \[1516\]: NOTICE  \[sshd\] Ban 1.186.45.250
2019-10-28 08:58:40,463 fail2ban.actions        \[1516\]: NOTICE  \[sshd\] Ban 1.186.45.250
2019-10-28 09:31:47,021 fail2ban.actions        \[1516\]: NOTICE  \[sshd\] Ban 1.186.45.250
2019-10-28 10:05:16,388 fail2ban.actions        \[1516\]: NOTICE  \[sshd\] Ban 1.186.45.250
...

Aug 26 05:29:48 hiderm sshd\[26730\]: Invalid user alx from 192.241.185.120
Aug 26 05:29:48 hiderm sshd\[26730\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.241.185.120
Aug 26 05:29:51 hiderm sshd\[26730\]: Failed password for invalid user alx from 192.241.185.120 port 43413 ssh2
Aug 26 05:34:00 hiderm sshd\[27066\]: Invalid user graphics from 192.241.185.120
Aug 26 05:34:00 hiderm sshd\[27066\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.241.185.120

MultiHost/MultiPort Probe, Scan, Hack -

Aug 26 05:09:19 tdfoods sshd\[7985\]: Invalid user sex123 from 122.14.219.4
Aug 26 05:09:19 tdfoods sshd\[7985\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.14.219.4
Aug 26 05:09:21 tdfoods sshd\[7985\]: Failed password for invalid user sex123 from 122.14.219.4 port 38066 ssh2
Aug 26 05:12:52 tdfoods sshd\[8248\]: Invalid user tang from 122.14.219.4
Aug 26 05:12:52 tdfoods sshd\[8248\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.14.219.4

Aug 26 18:17:14 srv-4 sshd\[16888\]: Invalid user student6 from 94.177.163.133
Aug 26 18:17:14 srv-4 sshd\[16888\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=94.177.163.133
Aug 26 18:17:16 srv-4 sshd\[16888\]: Failed password for invalid user student6 from 94.177.163.133 port 37634 ssh2
...

Aug 26 15:19:44 MK-Soft-VM3 sshd\[6744\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=23.129.64.215  user=sshd
Aug 26 15:19:46 MK-Soft-VM3 sshd\[6744\]: Failed password for sshd from 23.129.64.215 port 42631 ssh2
Aug 26 15:19:49 MK-Soft-VM3 sshd\[6744\]: Failed password for sshd from 23.129.64.215 port 42631 ssh2
...

Aug 26 15:59:01 debian sshd\[7594\]: Invalid user kiacobucci from 177.74.79.142 port 56369
Aug 26 15:59:01 debian sshd\[7594\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=177.74.79.142
...

Aug 26 04:54:38 web1 sshd\[22916\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=149.56.44.47  user=sshd
Aug 26 04:54:40 web1 sshd\[22916\]: Failed password for sshd from 149.56.44.47 port 41108 ssh2
Aug 26 04:54:42 web1 sshd\[22916\]: Failed password for sshd from 149.56.44.47 port 41108 ssh2
Aug 26 04:54:44 web1 sshd\[22916\]: Failed password for sshd from 149.56.44.47 port 41108 ssh2
Aug 26 04:54:47 web1 sshd\[22916\]: Failed password for sshd from 149.56.44.47 port 41108 ssh2

2019-08-26T17:20:56.093137lon01.zurich-datacenter.net sshd\[31782\]: Invalid user git from 51.38.49.140 port 38670
2019-08-26T17:20:56.102698lon01.zurich-datacenter.net sshd\[31782\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=140.ip-51-38-49.eu
2019-08-26T17:20:57.559063lon01.zurich-datacenter.net sshd\[31782\]: Failed password for invalid user git from 51.38.49.140 port 38670 ssh2
2019-08-26T17:24:52.514008lon01.zurich-datacenter.net sshd\[31879\]: Invalid user sui from 51.38.49.140 port 55518
2019-08-26T17:24:52.520378lon01.zurich-datacenter.net sshd\[31879\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=140.ip-51-38-49.eu
...

2019-08-26T14:33:36.217257beta postfix/smtpd[24214]: NOQUEUE: reject: RCPT from unknown[91.244.123.5]: 450 4.7.1 Client host rejected: cannot find your reverse hostname, [91.244.123.5]; from= to= proto=ESMTP helo=<[91.244.123.5]>
2019-08-26T14:35:23.899028beta postfix/smtpd[24260]: NOQUEUE: reject: RCPT from unknown[91.244.123.5]: 450 4.7.1 Client host rejected: cannot find your reverse hostname, [91.244.123.5]; from= to= proto=ESMTP helo=<[91.244.123.5]>
2019-08-26T14:36:29.151652beta postfix/smtpd[24260]: NOQUEUE: reject: RCPT from unknown[91.244.123.5]: 450 4.7.1 Client host rejected: cannot find your reverse hostname, [91.244.123.5]; from= to= proto=ESMTP helo=<[91.244.123.5]>
...

Aug 26 17:41:06 eventyay sshd[2142]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.89.35.168
Aug 26 17:41:08 eventyay sshd[2142]: Failed password for invalid user ghost from 118.89.35.168 port 35172 ssh2
Aug 26 17:47:55 eventyay sshd[2253]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.89.35.168
...

Aug 26 09:54:36 xtremcommunity sshd\[32589\]: Invalid user maria from 174.138.21.27 port 54394
Aug 26 09:54:36 xtremcommunity sshd\[32589\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=174.138.21.27
Aug 26 09:54:38 xtremcommunity sshd\[32589\]: Failed password for invalid user maria from 174.138.21.27 port 54394 ssh2
Aug 26 09:59:41 xtremcommunity sshd\[446\]: Invalid user areyes from 174.138.21.27 port 43906
Aug 26 09:59:41 xtremcommunity sshd\[446\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=174.138.21.27
...

Aug 26 17:33:23 vps647732 sshd[24256]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.107.201
Aug 26 17:33:25 vps647732 sshd[24256]: Failed password for invalid user novo from 106.12.107.201 port 38176 ssh2
...

Aug 26 15:44:37 MK-Soft-VM4 sshd\[12740\]: Invalid user app from 118.24.246.193 port 55976
Aug 26 15:44:37 MK-Soft-VM4 sshd\[12740\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.24.246.193
Aug 26 15:44:39 MK-Soft-VM4 sshd\[12740\]: Failed password for invalid user app from 118.24.246.193 port 55976 ssh2
...

Aug 26 17:17:03 rpi sshd[29807]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=211.220.27.191 
Aug 26 17:17:05 rpi sshd[29807]: Failed password for invalid user transfer from 211.220.27.191 port 38534 ssh2

Aug 26 15:58:38 thevastnessof sshd[7892]: Failed password for sshd from 87.120.254.98 port 41217 ssh2
...