2020-06-28 14:52:48 auth_plain authenticator failed for (User) [46.38.145.249]: 535 Incorrect authentication data (set_id=winston@csmailer.org)
2020-06-28 14:53:32 auth_plain authenticator failed for (User) [46.38.145.249]: 535 Incorrect authentication data (set_id=webexpand@csmailer.org)
2020-06-28 14:54:18 auth_plain authenticator failed for (User) [46.38.145.249]: 535 Incorrect authentication data (set_id=dbg@csmailer.org)
2020-06-28 14:55:02 auth_plain authenticator failed for (User) [46.38.145.249]: 535 Incorrect authentication data (set_id=pihole@csmailer.org)
2020-06-28 14:55:46 auth_plain authenticator failed for (User) [46.38.145.249]: 535 Incorrect authentication data (set_id=mail.apps@csmailer.org)
...

 TCP (SYN) 59.127.102.102:38700 -> port 23, len 44

Invalid user bkpuser from 191.191.100.177 port 58555                                                   
sshd[3847197]: pam_unix(sshd:auth): check pass; user unknown                                                          
   403 Jun 21 14:35:40 sshd[3847197]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=191.191.100.177                                                                                                                                                      
   404 Jun 21 14:35:42  sshd[3847197]: Failed password for invalid user bkpuser from 191.191.100.177 port 58555 ssh2                          
   405 Jun 21 14:35:43  sshd[3847197]: Received disconnect from 191.191.100.177 port 58555:11: Bye Bye [preauth]                              
   406 Jun 21 14:35:43 sshd[3847197]: Disconnected from invalid user bkpuser 191.191.100.177 port 58555 [preauth]

Jun 28 12:12:55 vps1 sshd[1993270]: Invalid user csw from 14.161.50.104 port 35781
Jun 28 12:12:57 vps1 sshd[1993270]: Failed password for invalid user csw from 14.161.50.104 port 35781 ssh2
...

Jun 28 16:17:14 vpn01 sshd[25346]: Failed password for root from 213.158.10.101 port 41502 ssh2
...

SSH Brute-Force. Ports scanning.

 TCP (SYN) 128.199.156.76:51390 -> port 28648, len 44

/xmlrpc.php
As always with Mozambique

From send-alceu-1618-alkosa.com.br-8@opered.com.br Sun Jun 28 09:12:59 2020
Received: from mm57-43.opered.com.br ([179.97.57.43]:48695)

Jun 28 17:01:32 * sshd[4129]: Failed password for root from 218.92.0.215 port 61209 ssh2
Jun 28 17:01:43 * sshd[4149]: Failed password for root from 218.92.0.215 port 37235 ssh2
Jun 28 17:01:45 * sshd[4149]: Failed password for root from 218.92.0.215 port 37235 ssh2
Jun 28 17:01:47 * sshd[4149]: Failed password for root from 218.92.0.215 port 37235 ssh2
Jun 28 17:01:53 * sshd[4167]: Failed password for root from 218.92.0.215 port 63446 ssh2

2020-06-28T14:09:07.264469vps751288.ovh.net sshd\[10206\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.53.27.233  user=root
2020-06-28T14:09:09.464372vps751288.ovh.net sshd\[10206\]: Failed password for root from 120.53.27.233 port 41016 ssh2
2020-06-28T14:12:35.019597vps751288.ovh.net sshd\[10263\]: Invalid user alex from 120.53.27.233 port 56322
2020-06-28T14:12:35.026846vps751288.ovh.net sshd\[10263\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.53.27.233
2020-06-28T14:12:37.111621vps751288.ovh.net sshd\[10263\]: Failed password for invalid user alex from 120.53.27.233 port 56322 ssh2

$f2bV_matches

Jun 28 14:29:25 haigwepa sshd[2229]: Failed password for root from 111.230.236.93 port 53882 ssh2
...

SSH Bruteforce Attempt (failed auth)

Jun 28 17:14:33 dcd-gentoo sshd[10066]: User root from 218.92.0.191 not allowed because none of user's groups are listed in AllowGroups
Jun 28 17:14:37 dcd-gentoo sshd[10066]: error: PAM: Authentication failure for illegal user root from 218.92.0.191
Jun 28 17:14:37 dcd-gentoo sshd[10066]: Failed keyboard-interactive/pam for invalid user root from 218.92.0.191 port 13777 ssh2
...