Mar 27 23:59:44 legacy sshd[3073]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=110.164.189.53
Mar 27 23:59:46 legacy sshd[3073]: Failed password for invalid user trial from 110.164.189.53 port 50434 ssh2
Mar 28 00:04:25 legacy sshd[3125]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=110.164.189.53
...

SSH Invalid Login

Attempt to attack host OS, exploiting network vulnerabilities, on 27-03-2020 21:15:16.

Mar 28 01:46:33 legacy sshd[5135]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.59.123.166
Mar 28 01:46:35 legacy sshd[5135]: Failed password for invalid user qcb from 37.59.123.166 port 44626 ssh2
Mar 28 01:50:01 legacy sshd[5199]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.59.123.166
...

SSH Brute-Forcing (server1)

2020-03-28T00:08:16.829701ldap.arvenenaske.de sshd[103863]: Connection from 211.159.171.115 port 56534 on 5.199.128.55 port 22 rdomain ""
2020-03-28T00:08:19.419033ldap.arvenenaske.de sshd[103863]: Invalid user vyc from 211.159.171.115 port 56534
2020-03-28T00:08:19.676577ldap.arvenenaske.de sshd[103863]: pam_sss(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=211.159.171.115 user=vyc
2020-03-28T00:08:19.680756ldap.arvenenaske.de sshd[103863]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=211.159.171.115
2020-03-28T00:08:16.829701ldap.arvenenaske.de sshd[103863]: Connection from 211.159.171.115 port 56534 on 5.199.128.55 port 22 rdomain ""
2020-03-28T00:08:19.419033ldap.arvenenaske.de sshd[103863]: Invalid user vyc from 211.159.171.115 port 56534
2020-03-28T00:08:21.666772ldap.arvenenaske.de sshd[103863]: Failed password for invalid user vyc from 211.159.171.115 port 56534 ssh2
2020-03-28T00:14:15.2........
------------------------------

Unauthorized connection attempt from IP address 188.43.28.53 on Port 445(SMB)

Mar 27 18:55:36 server1 sshd\[10177\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.76.135.15 
Mar 27 18:55:38 server1 sshd\[10177\]: Failed password for invalid user am from 180.76.135.15 port 38986 ssh2
Mar 27 18:59:15 server1 sshd\[11753\]: Invalid user oje from 180.76.135.15
Mar 27 18:59:15 server1 sshd\[11753\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.76.135.15 
Mar 27 18:59:17 server1 sshd\[11753\]: Failed password for invalid user oje from 180.76.135.15 port 38974 ssh2
...

Automatic report - Banned IP Access

2020-03-27T23:28:09.669823abusebot-4.cloudsearch.cf sshd[4679]: Invalid user emb from 194.152.206.93 port 45078
2020-03-27T23:28:09.678556abusebot-4.cloudsearch.cf sshd[4679]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=194.152.206.93
2020-03-27T23:28:09.669823abusebot-4.cloudsearch.cf sshd[4679]: Invalid user emb from 194.152.206.93 port 45078
2020-03-27T23:28:11.362971abusebot-4.cloudsearch.cf sshd[4679]: Failed password for invalid user emb from 194.152.206.93 port 45078 ssh2
2020-03-27T23:33:34.856635abusebot-4.cloudsearch.cf sshd[4991]: Invalid user xyi from 194.152.206.93 port 51599
2020-03-27T23:33:34.866599abusebot-4.cloudsearch.cf sshd[4991]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=194.152.206.93
2020-03-27T23:33:34.856635abusebot-4.cloudsearch.cf sshd[4991]: Invalid user xyi from 194.152.206.93 port 51599
2020-03-27T23:33:36.836762abusebot-4.cloudsearch.cf sshd[4991]: Failed password f
...

Unauthorized connection attempt from IP address 103.37.200.190 on Port 445(SMB)

Invalid user eu from 43.243.128.213 port 53735

X-Original-From: SK available 
From: "SK available available1501@yahoo.com [Big-Boob-Photos]" 
X-Yahoo-Profile: runaway17@yahoo.com
Sender: Big-Boob-Photos@yahoogroups.com

" "

Unauthorized connection attempt from IP address 41.225.24.34 on Port 445(SMB)