Aug 19 14:32:46 icinga sshd[48001]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.3.226.230 
Aug 19 14:32:48 icinga sshd[48001]: Failed password for invalid user admin from 103.3.226.230 port 43604 ssh2
Aug 19 14:45:02 icinga sshd[3881]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.3.226.230 
...

Aug 13 01:32:40 root sshd[28894]: Failed password for root from 103.3.226.230 port 41910 ssh2
Aug 13 01:46:06 root sshd[30664]: Failed password for root from 103.3.226.230 port 58542 ssh2
...

Brute-force attempt banned

Jul 25 17:45:30 srv-ubuntu-dev3 sshd[69332]: Invalid user kelly from 103.3.226.230
Jul 25 17:45:30 srv-ubuntu-dev3 sshd[69332]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.3.226.230
Jul 25 17:45:30 srv-ubuntu-dev3 sshd[69332]: Invalid user kelly from 103.3.226.230
Jul 25 17:45:32 srv-ubuntu-dev3 sshd[69332]: Failed password for invalid user kelly from 103.3.226.230 port 56620 ssh2
Jul 25 17:48:39 srv-ubuntu-dev3 sshd[69774]: Invalid user bg from 103.3.226.230
Jul 25 17:48:39 srv-ubuntu-dev3 sshd[69774]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.3.226.230
Jul 25 17:48:39 srv-ubuntu-dev3 sshd[69774]: Invalid user bg from 103.3.226.230
Jul 25 17:48:40 srv-ubuntu-dev3 sshd[69774]: Failed password for invalid user bg from 103.3.226.230 port 38002 ssh2
Jul 25 17:51:47 srv-ubuntu-dev3 sshd[70211]: Invalid user es from 103.3.226.230
...

Jul 20 20:08:52 php1 sshd\[3777\]: Invalid user james from 103.3.226.166
Jul 20 20:08:52 php1 sshd\[3777\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.3.226.166
Jul 20 20:08:55 php1 sshd\[3777\]: Failed password for invalid user james from 103.3.226.166 port 46557 ssh2
Jul 20 20:16:19 php1 sshd\[4528\]: Invalid user odmin from 103.3.226.166
Jul 20 20:16:19 php1 sshd\[4528\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.3.226.166

Jul 13 15:23:33 jane sshd[1876]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.3.226.166 
Jul 13 15:23:35 jane sshd[1876]: Failed password for invalid user debra from 103.3.226.166 port 37363 ssh2
...

Jul 10 15:17:47 lnxmysql61 sshd[10969]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.3.226.166

Jul  7 22:08:52 plex-server sshd[589945]: Invalid user lvxinyu from 103.3.226.166 port 40458
Jul  7 22:08:52 plex-server sshd[589945]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.3.226.166 
Jul  7 22:08:52 plex-server sshd[589945]: Invalid user lvxinyu from 103.3.226.166 port 40458
Jul  7 22:08:54 plex-server sshd[589945]: Failed password for invalid user lvxinyu from 103.3.226.166 port 40458 ssh2
Jul  7 22:11:37 plex-server sshd[590223]: Invalid user lvxinyu from 103.3.226.166 port 41075
...

Jun 30 09:42:18 cdc sshd[13241]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.3.226.230 
Jun 30 09:42:20 cdc sshd[13241]: Failed password for invalid user dag from 103.3.226.230 port 55570 ssh2

$f2bV_matches

2020-06-23T20:58:04.116873abusebot-8.cloudsearch.cf sshd[20753]: Invalid user kris from 103.3.226.230 port 35618
2020-06-23T20:58:04.124285abusebot-8.cloudsearch.cf sshd[20753]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.3.226.230
2020-06-23T20:58:04.116873abusebot-8.cloudsearch.cf sshd[20753]: Invalid user kris from 103.3.226.230 port 35618
2020-06-23T20:58:06.182686abusebot-8.cloudsearch.cf sshd[20753]: Failed password for invalid user kris from 103.3.226.230 port 35618 ssh2
2020-06-23T21:06:14.755948abusebot-8.cloudsearch.cf sshd[20789]: Invalid user wangrui from 103.3.226.230 port 33490
2020-06-23T21:06:14.765396abusebot-8.cloudsearch.cf sshd[20789]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.3.226.230
2020-06-23T21:06:14.755948abusebot-8.cloudsearch.cf sshd[20789]: Invalid user wangrui from 103.3.226.230 port 33490
2020-06-23T21:06:17.094446abusebot-8.cloudsearch.cf sshd[20789]: Faile
...

Jun 20 14:19:56 lnxweb62 sshd[32098]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.3.226.230

Invalid user pha from 103.3.226.166 port 34395

2020-06-15T14:49:53.081733galaxy.wi.uni-potsdam.de sshd[17737]: Failed password for invalid user ricoh from 103.3.226.230 port 55992 ssh2
2020-06-15T14:51:52.159653galaxy.wi.uni-potsdam.de sshd[18021]: Invalid user sc from 103.3.226.230 port 53156
2020-06-15T14:51:52.164247galaxy.wi.uni-potsdam.de sshd[18021]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.3.226.230
2020-06-15T14:51:52.159653galaxy.wi.uni-potsdam.de sshd[18021]: Invalid user sc from 103.3.226.230 port 53156
2020-06-15T14:51:54.696894galaxy.wi.uni-potsdam.de sshd[18021]: Failed password for invalid user sc from 103.3.226.230 port 53156 ssh2
2020-06-15T14:53:50.028719galaxy.wi.uni-potsdam.de sshd[18235]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.3.226.230  user=root
2020-06-15T14:53:51.758650galaxy.wi.uni-potsdam.de sshd[18235]: Failed password for root from 103.3.226.230 port 50320 ssh2
2020-06-15T14:55:45.029983galaxy.wi.uni-
...

2020-06-15T13:00:43.149958dmca.cloudsearch.cf sshd[22641]: Invalid user kshitij from 103.3.226.166 port 54759
2020-06-15T13:00:43.157127dmca.cloudsearch.cf sshd[22641]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.3.226.166
2020-06-15T13:00:43.149958dmca.cloudsearch.cf sshd[22641]: Invalid user kshitij from 103.3.226.166 port 54759
2020-06-15T13:00:44.917439dmca.cloudsearch.cf sshd[22641]: Failed password for invalid user kshitij from 103.3.226.166 port 54759 ssh2
2020-06-15T13:03:53.488524dmca.cloudsearch.cf sshd[22967]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.3.226.166  user=root
2020-06-15T13:03:54.997999dmca.cloudsearch.cf sshd[22967]: Failed password for root from 103.3.226.166 port 43732 ssh2
2020-06-15T13:07:06.679568dmca.cloudsearch.cf sshd[23257]: Invalid user system from 103.3.226.166 port 60940
...

Jul  7 08:52:26 srv01 postfix/smtpd\[21034\]: warning: unknown\[111.72.197.119\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul  7 08:56:05 srv01 postfix/smtpd\[21357\]: warning: unknown\[111.72.197.119\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul  7 08:56:17 srv01 postfix/smtpd\[21357\]: warning: unknown\[111.72.197.119\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul  7 08:56:34 srv01 postfix/smtpd\[21357\]: warning: unknown\[111.72.197.119\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul  7 08:56:53 srv01 postfix/smtpd\[21357\]: warning: unknown\[111.72.197.119\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...

Automatic report - XMLRPC Attack

Jul  7 09:42:43 dhoomketu sshd[1341321]: Failed password for invalid user runo from 157.0.134.164 port 17683 ssh2
Jul  7 09:45:44 dhoomketu sshd[1341361]: Invalid user demo from 157.0.134.164 port 38956
Jul  7 09:45:44 dhoomketu sshd[1341361]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.0.134.164 
Jul  7 09:45:44 dhoomketu sshd[1341361]: Invalid user demo from 157.0.134.164 port 38956
Jul  7 09:45:46 dhoomketu sshd[1341361]: Failed password for invalid user demo from 157.0.134.164 port 38956 ssh2
...

Unauthorized connection attempt detected from IP address 71.181.50.191 to port 23

2020-07-07T09:27:58.820572vps751288.ovh.net sshd\[25183\]: Invalid user i686 from 178.32.219.66 port 33952
2020-07-07T09:27:58.833104vps751288.ovh.net sshd\[25183\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=ns3306115.ip-178-32-219.eu
2020-07-07T09:28:01.153919vps751288.ovh.net sshd\[25183\]: Failed password for invalid user i686 from 178.32.219.66 port 33952 ssh2
2020-07-07T09:31:03.225025vps751288.ovh.net sshd\[25233\]: Invalid user aaaaa from 178.32.219.66 port 59490
2020-07-07T09:31:03.233346vps751288.ovh.net sshd\[25233\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=ns3306115.ip-178-32-219.eu

Jul  7 09:28:26 abendstille sshd\[15219\]: Invalid user martin from 51.68.228.127
Jul  7 09:28:26 abendstille sshd\[15219\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.228.127
Jul  7 09:28:28 abendstille sshd\[15219\]: Failed password for invalid user martin from 51.68.228.127 port 56600 ssh2
Jul  7 09:34:19 abendstille sshd\[21249\]: Invalid user alex from 51.68.228.127
Jul  7 09:34:19 abendstille sshd\[21249\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.228.127
...

'Fail2Ban'

Jul  7 09:05:47 vpn01 sshd[32561]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.236.124.45
Jul  7 09:05:50 vpn01 sshd[32561]: Failed password for invalid user uno8 from 104.236.124.45 port 58198 ssh2
...

Jul  7 08:58:16 DAAP sshd[18477]: Invalid user deva from 220.133.95.68 port 52256
Jul  7 08:58:16 DAAP sshd[18477]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=220.133.95.68
Jul  7 08:58:16 DAAP sshd[18477]: Invalid user deva from 220.133.95.68 port 52256
Jul  7 08:58:19 DAAP sshd[18477]: Failed password for invalid user deva from 220.133.95.68 port 52256 ssh2
Jul  7 09:04:28 DAAP sshd[18576]: Invalid user oracle from 220.133.95.68 port 40974
...

62.210.180.132 - - [07/Jul/2020:08:12:16 +0200] "POST //xmlrpc.php HTTP/1.1" 403 1031 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.149 Safari/537.36"
62.210.180.132 - - [07/Jul/2020:08:12:16 +0200] "POST //xmlrpc.php HTTP/1.1" 403 1031 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.149 Safari/537.36"
...

2020-07-07T09:54:11.846933ks3355764 sshd[32370]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.74.25.246  user=root
2020-07-07T09:54:13.773291ks3355764 sshd[32370]: Failed password for root from 182.74.25.246 port 53764 ssh2
...

1594093900 - 07/07/2020 05:51:40 Host: 171.248.178.48/171.248.178.48 Port: 445 TCP Blocked

Jul  7 04:53:45 vps46666688 sshd[25469]: Failed password for root from 218.92.0.252 port 12149 ssh2
Jul  7 04:54:00 vps46666688 sshd[25469]: error: maximum authentication attempts exceeded for root from 218.92.0.252 port 12149 ssh2 [preauth]
...

 TCP (SYN) 89.241.69.244:28532 -> port 23, len 44

2020-07-07T06:12:57.796787shield sshd\[2459\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.75.234.54  user=root
2020-07-07T06:12:59.868988shield sshd\[2459\]: Failed password for root from 106.75.234.54 port 51870 ssh2
2020-07-07T06:13:50.393886shield sshd\[2743\]: Invalid user dy from 106.75.234.54 port 57040
2020-07-07T06:13:50.397356shield sshd\[2743\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.75.234.54
2020-07-07T06:13:52.745492shield sshd\[2743\]: Failed password for invalid user dy from 106.75.234.54 port 57040 ssh2