Dec 26 17:54:31 MK-Soft-VM7 sshd[19843]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.204 
Dec 26 17:54:33 MK-Soft-VM7 sshd[19843]: Failed password for invalid user operator from 106.13.113.204 port 55030 ssh2
...

Dec 19 16:16:46 MK-Soft-VM7 sshd[24606]: Failed password for root from 106.13.113.204 port 50088 ssh2
...

Dec 14 10:54:41 php1 sshd\[18662\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.204  user=root
Dec 14 10:54:44 php1 sshd\[18662\]: Failed password for root from 106.13.113.204 port 53098 ssh2
Dec 14 11:00:17 php1 sshd\[19219\]: Invalid user ggggggg from 106.13.113.204
Dec 14 11:00:17 php1 sshd\[19219\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.204
Dec 14 11:00:18 php1 sshd\[19219\]: Failed password for invalid user ggggggg from 106.13.113.204 port 49728 ssh2

Dec 11 08:29:04 MK-Soft-VM7 sshd[19611]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.204 
Dec 11 08:29:07 MK-Soft-VM7 sshd[19611]: Failed password for invalid user lantz from 106.13.113.204 port 51002 ssh2
...

Banned for a week because repeated abuses, for example SSH, but not only

Aug  5 16:42:52 rush sshd[30951]: Failed password for root from 106.13.113.91 port 40260 ssh2
Aug  5 16:45:16 rush sshd[31061]: Failed password for root from 106.13.113.91 port 36552 ssh2
...

Aug  2 03:47:15 itv-usvr-02 sshd[22438]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.91  user=root
Aug  2 03:50:34 itv-usvr-02 sshd[22534]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.91  user=root
Aug  2 03:53:39 itv-usvr-02 sshd[22632]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.91  user=root

Jul 10 05:42:27 Ubuntu-1404-trusty-64-minimal sshd\[6118\]: Invalid user abrahan from 106.13.113.91
Jul 10 05:42:27 Ubuntu-1404-trusty-64-minimal sshd\[6118\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.91
Jul 10 05:42:29 Ubuntu-1404-trusty-64-minimal sshd\[6118\]: Failed password for invalid user abrahan from 106.13.113.91 port 33880 ssh2
Jul 10 05:55:13 Ubuntu-1404-trusty-64-minimal sshd\[12337\]: Invalid user hydra from 106.13.113.91
Jul 10 05:55:13 Ubuntu-1404-trusty-64-minimal sshd\[12337\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.91

Jul  6 09:51:20 jane sshd[7577]: Failed password for root from 106.13.113.91 port 46276 ssh2
...

2020-02-21 18:50:37 server sshd[24072]: Failed password for invalid user chendaocheng from 106.13.113.161 port 44468 ssh2

Dec 15 15:37:52 srv01 sshd[16968]: Invalid user toshitaka from 106.13.113.161 port 32954
Dec 15 15:37:52 srv01 sshd[16968]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.161
Dec 15 15:37:52 srv01 sshd[16968]: Invalid user toshitaka from 106.13.113.161 port 32954
Dec 15 15:37:55 srv01 sshd[16968]: Failed password for invalid user toshitaka from 106.13.113.161 port 32954 ssh2
Dec 15 15:47:28 srv01 sshd[17931]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.161  user=root
Dec 15 15:47:30 srv01 sshd[17931]: Failed password for root from 106.13.113.161 port 53168 ssh2
...

Dec  2 14:37:31 vpn01 sshd[1452]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.161
Dec  2 14:37:33 vpn01 sshd[1452]: Failed password for invalid user zxcv from 106.13.113.161 port 46298 ssh2
...

Nov 28 17:18:29 heissa sshd\[32476\]: Invalid user ftpuser from 106.13.113.161 port 60700
Nov 28 17:18:29 heissa sshd\[32476\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.161
Nov 28 17:18:31 heissa sshd\[32476\]: Failed password for invalid user ftpuser from 106.13.113.161 port 60700 ssh2
Nov 28 17:24:04 heissa sshd\[890\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.161  user=root
Nov 28 17:24:06 heissa sshd\[890\]: Failed password for root from 106.13.113.161 port 58960 ssh2

Nov 28 03:08:27 linuxvps sshd\[14170\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.161  user=root
Nov 28 03:08:29 linuxvps sshd\[14170\]: Failed password for root from 106.13.113.161 port 58578 ssh2
Nov 28 03:14:09 linuxvps sshd\[17374\]: Invalid user faturamento from 106.13.113.161
Nov 28 03:14:09 linuxvps sshd\[17374\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.161
Nov 28 03:14:11 linuxvps sshd\[17374\]: Failed password for invalid user faturamento from 106.13.113.161 port 58936 ssh2

Nov 17 15:35:27 mout sshd[16138]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.161  user=root
Nov 17 15:35:29 mout sshd[16138]: Failed password for root from 106.13.113.161 port 46002 ssh2

Nov 17 05:25:59 vibhu-HP-Z238-Microtower-Workstation sshd\[30200\]: Invalid user kory from 106.13.113.161
Nov 17 05:25:59 vibhu-HP-Z238-Microtower-Workstation sshd\[30200\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.161
Nov 17 05:26:01 vibhu-HP-Z238-Microtower-Workstation sshd\[30200\]: Failed password for invalid user kory from 106.13.113.161 port 60466 ssh2
Nov 17 05:33:18 vibhu-HP-Z238-Microtower-Workstation sshd\[30624\]: Invalid user thorsten from 106.13.113.161
Nov 17 05:33:18 vibhu-HP-Z238-Microtower-Workstation sshd\[30624\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.161
...

" "

Oct 20 13:55:31 heissa sshd\[30908\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.161  user=root
Oct 20 13:55:34 heissa sshd\[30908\]: Failed password for root from 106.13.113.161 port 45282 ssh2
Oct 20 14:02:50 heissa sshd\[31998\]: Invalid user pych from 106.13.113.161 port 52894
Oct 20 14:02:50 heissa sshd\[31998\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.161
Oct 20 14:02:52 heissa sshd\[31998\]: Failed password for invalid user pych from 106.13.113.161 port 52894 ssh2

Oct  4 00:33:02 gw1 sshd[9968]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.113.161
Oct  4 00:33:04 gw1 sshd[9968]: Failed password for invalid user vgorder from 106.13.113.161 port 53798 ssh2
...

Feb 18 13:52:53 durga sshd[699039]: Invalid user twtlladmin from 159.89.196.253
Feb 18 13:52:53 durga sshd[699039]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.89.196.253 
Feb 18 13:52:55 durga sshd[699039]: Failed password for invalid user twtlladmin from 159.89.196.253 port 36866 ssh2
Feb 18 13:52:55 durga sshd[699039]: Received disconnect from 159.89.196.253: 11: Bye Bye [preauth]
Feb 18 14:12:10 durga sshd[704317]: Invalid user bandhostname from 159.89.196.253
Feb 18 14:12:10 durga sshd[704317]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.89.196.253 
Feb 18 14:12:12 durga sshd[704317]: Failed password for invalid user bandhostname from 159.89.196.253 port 52504 ssh2
Feb 18 14:12:13 durga sshd[704317]: Received disconnect from 159.89.196.253: 11: Bye Bye [preauth]
Feb 18 14:15:02 durga sshd[704791]: Invalid user william from 159.89.196.253
Feb 18 14:15:02 durga sshd[704791........
-------------------------------

Feb 18 19:51:29 hcbbdb sshd\[14242\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.180.41  user=root
Feb 18 19:51:31 hcbbdb sshd\[14242\]: Failed password for root from 222.186.180.41 port 64852 ssh2
Feb 18 19:51:41 hcbbdb sshd\[14242\]: Failed password for root from 222.186.180.41 port 64852 ssh2
Feb 18 19:51:44 hcbbdb sshd\[14242\]: Failed password for root from 222.186.180.41 port 64852 ssh2
Feb 18 19:51:47 hcbbdb sshd\[14272\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.180.41  user=root

Unauthorized connection attempt detected from IP address 46.181.114.240 to port 445

Automatic report - XMLRPC Attack

2020-02-18 10:22:29 dovecot_login authenticator failed for (User) [193.56.28.226]:59506 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=web@lerctr.org)
2020-02-18 10:22:36 dovecot_login authenticator failed for (User) [193.56.28.226]:59506 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=web@lerctr.org)
2020-02-18 10:22:46 dovecot_login authenticator failed for (User) [193.56.28.226]:59506 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=web@lerctr.org)
...

Feb 18 20:13:43 pornomens sshd\[626\]: Invalid user mouzj from 176.63.166.4 port 39364
Feb 18 20:13:43 pornomens sshd\[626\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=176.63.166.4
Feb 18 20:13:45 pornomens sshd\[626\]: Failed password for invalid user mouzj from 176.63.166.4 port 39364 ssh2
...

Feb 18 14:21:23 grey postfix/smtpd\[28181\]: NOQUEUE: reject: RCPT from unknown\[194.126.224.122\]: 554 5.7.1 Service unavailable\; Client host \[194.126.224.122\] blocked using truncate.gbudb.net\; http://www.gbudb.com/truncate/ \[194.126.224.122\]\; from=\ to=\ proto=SMTP helo=\
...

1582032080 - 02/18/2020 14:21:20 Host: 113.161.16.25/113.161.16.25 Port: 445 TCP Blocked

MultiHost/MultiPort Probe, Scan, Hack -

Feb 18 16:41:11 ks10 sshd[1133582]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=142.44.240.12 
Feb 18 16:41:13 ks10 sshd[1133582]: Failed password for invalid user admin from 142.44.240.12 port 50008 ssh2
...

Feb 18 15:12:29 vps46666688 sshd[4758]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=52.172.136.92
Feb 18 15:12:31 vps46666688 sshd[4758]: Failed password for invalid user florida from 52.172.136.92 port 41964 ssh2
...

eMail SPAM

Feb 18 15:37:43 sd-53420 sshd\[8202\]: Invalid user minecraft from 51.38.188.63
Feb 18 15:37:43 sd-53420 sshd\[8202\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.188.63
Feb 18 15:37:45 sd-53420 sshd\[8202\]: Failed password for invalid user minecraft from 51.38.188.63 port 57710 ssh2
Feb 18 15:40:29 sd-53420 sshd\[8592\]: Invalid user www from 51.38.188.63
Feb 18 15:40:29 sd-53420 sshd\[8592\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.188.63
...

port scan and connect, tcp 23 (telnet)

Feb 18 20:15:53 [snip] sshd[7784]: Invalid user admin from 91.224.60.75 port 57327
Feb 18 20:15:53 [snip] sshd[7784]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.224.60.75
Feb 18 20:15:55 [snip] sshd[7784]: Failed password for invalid user admin from 91.224.60.75 port 57327 ssh2[...]