SSH brute-force: detected 10 distinct usernames within a 24-hour window.

Dec 18 08:02:39 hanapaa sshd\[8171\]: Invalid user wilhelmina from 213.39.53.241
Dec 18 08:02:39 hanapaa sshd\[8171\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=213.39.53.241
Dec 18 08:02:41 hanapaa sshd\[8171\]: Failed password for invalid user wilhelmina from 213.39.53.241 port 60496 ssh2
Dec 18 08:08:09 hanapaa sshd\[8662\]: Invalid user !@\#\$%\^\&\* from 213.39.53.241
Dec 18 08:08:09 hanapaa sshd\[8662\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=213.39.53.241

sshd jail - ssh hack attempt

detected by Fail2Ban

Dec 18 19:00:23 MK-Soft-VM3 sshd[8492]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=183.64.62.173 
Dec 18 19:00:25 MK-Soft-VM3 sshd[8492]: Failed password for invalid user wideworks from 183.64.62.173 port 44132 ssh2
...

2019-12-18T16:37:59.111860abusebot-6.cloudsearch.cf sshd\[17417\]: Invalid user kristi from 106.3.130.53 port 39454
2019-12-18T16:37:59.118738abusebot-6.cloudsearch.cf sshd\[17417\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.3.130.53
2019-12-18T16:38:01.092358abusebot-6.cloudsearch.cf sshd\[17417\]: Failed password for invalid user kristi from 106.3.130.53 port 39454 ssh2
2019-12-18T16:47:09.013403abusebot-6.cloudsearch.cf sshd\[17457\]: Invalid user videolan from 106.3.130.53 port 55880

Dec 18 16:34:32 grey postfix/smtpd\[7059\]: NOQUEUE: reject: RCPT from prenatal.kwyali.com\[69.94.136.232\]: 554 5.7.1 Service unavailable\; Client host \[69.94.136.232\] blocked using truncate.gbudb.net\; http://www.gbudb.com/truncate/ \[69.94.136.232\]\; from=\ to=\ proto=ESMTP helo=\
...

Dec 18 17:41:05 srv206 sshd[6347]: Invalid user libal from 220.248.17.34
Dec 18 17:41:05 srv206 sshd[6347]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=220.248.17.34
Dec 18 17:41:05 srv206 sshd[6347]: Invalid user libal from 220.248.17.34
Dec 18 17:41:06 srv206 sshd[6347]: Failed password for invalid user libal from 220.248.17.34 port 38320 ssh2
...

Dec 18 04:47:58 hpm sshd\[5811\]: Invalid user puma from 103.10.30.204
Dec 18 04:47:59 hpm sshd\[5811\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.10.30.204
Dec 18 04:48:01 hpm sshd\[5811\]: Failed password for invalid user puma from 103.10.30.204 port 47206 ssh2
Dec 18 04:54:49 hpm sshd\[6505\]: Invalid user tritolo2 from 103.10.30.204
Dec 18 04:54:49 hpm sshd\[6505\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.10.30.204

--- report ---
Dec 18 14:14:15 sshd: Connection from 1.213.195.154 port 50119
Dec 18 14:14:16 sshd: Invalid user user from 1.213.195.154 port 50119
Dec 18 14:14:18 sshd: Failed password for invalid user user from 1.213.195.154 port 50119 ssh2
Dec 18 14:14:19 sshd: Received disconnect from 1.213.195.154 port 50119:11: Normal Shutdown, Thank you for playing [preauth]

Unauthorized connection attempt from IP address 202.77.122.67 on Port 445(SMB)

1576679604 - 12/18/2019 15:33:24 Host: 203.126.249.93/203.126.249.93 Port: 445 TCP Blocked

Dec 18 19:32:45 dev0-dcde-rnet sshd[16062]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=46.21.111.93
Dec 18 19:32:46 dev0-dcde-rnet sshd[16062]: Failed password for invalid user kurochi from 46.21.111.93 port 33954 ssh2
Dec 18 19:40:04 dev0-dcde-rnet sshd[16163]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=46.21.111.93

1576679580 - 12/18/2019 15:33:00 Host: 183.83.166.66/183.83.166.66 Port: 445 TCP Blocked

Telnet/23 MH Probe, BF, Hack -