Jun 28 08:10:23 ny01 sshd[12847]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=60.250.147.218
Jun 28 08:10:25 ny01 sshd[12847]: Failed password for invalid user rad from 60.250.147.218 port 46210 ssh2
Jun 28 08:13:35 ny01 sshd[13259]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=60.250.147.218

2020-06-28 02:42:51 dovecot_login authenticator failed for \(User\) \[212.70.149.34\]: 535 Incorrect authentication data \(set_id=dwayne@no-server.de\)
2020-06-28 02:43:10 dovecot_login authenticator failed for \(User\) \[212.70.149.34\]: 535 Incorrect authentication data \(set_id=dwayne@no-server.de\)
2020-06-28 02:43:15 dovecot_login authenticator failed for \(User\) \[212.70.149.34\]: 535 Incorrect authentication data \(set_id=dwayne@no-server.de\)
2020-06-28 02:43:18 dovecot_login authenticator failed for \(User\) \[212.70.149.34\]: 535 Incorrect authentication data \(set_id=dwayne@no-server.de\)
2020-06-28 02:43:27 dovecot_login authenticator failed for \(User\) \[212.70.149.34\]: 535 Incorrect authentication data \(set_id=dwight@no-server.de\)
2020-06-28 02:43:44 dovecot_login authenticator failed for \(User\) \[212.70.149.34\]: 535 Incorrect authentication data \(set_id=dwight@no-server.de\)
2020-06-28 02:43:50 dovecot_login authenticator failed for \(User\) \[212.70.149.34\]: 5
...

Brute forcing email accounts

2020-06-28T12:13:17.079878abusebot.cloudsearch.cf sshd[29269]: Invalid user andreas from 68.183.230.47 port 37578
2020-06-28T12:13:17.085213abusebot.cloudsearch.cf sshd[29269]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.230.47
2020-06-28T12:13:17.079878abusebot.cloudsearch.cf sshd[29269]: Invalid user andreas from 68.183.230.47 port 37578
2020-06-28T12:13:19.270100abusebot.cloudsearch.cf sshd[29269]: Failed password for invalid user andreas from 68.183.230.47 port 37578 ssh2
2020-06-28T12:16:11.395139abusebot.cloudsearch.cf sshd[29291]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.230.47  user=root
2020-06-28T12:16:13.133503abusebot.cloudsearch.cf sshd[29291]: Failed password for root from 68.183.230.47 port 39082 ssh2
2020-06-28T12:17:01.731629abusebot.cloudsearch.cf sshd[29297]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.230.47  use
...

Jun 28 13:46:01 ip-172-31-61-156 sshd[13403]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.185  user=root
Jun 28 13:46:04 ip-172-31-61-156 sshd[13403]: Failed password for root from 218.92.0.185 port 26320 ssh2
...

(imapd) Failed IMAP login from 115.84.92.181 (LA/Laos/-): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: Jun 28 16:43:03 ir1 dovecot[2885757]: imap-login: Disconnected (auth failed, 1 attempts in 6 secs): user=, method=PLAIN, rip=115.84.92.181, lip=5.63.12.44, TLS: Connection closed, session=

Sql/code injection probe

Jun 28 06:41:52 server1 sshd\[15659\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=186.3.12.54  user=root
Jun 28 06:41:54 server1 sshd\[15659\]: Failed password for root from 186.3.12.54 port 39170 ssh2
Jun 28 06:45:31 server1 sshd\[18121\]: Invalid user test from 186.3.12.54
Jun 28 06:45:31 server1 sshd\[18121\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=186.3.12.54 
Jun 28 06:45:33 server1 sshd\[18121\]: Failed password for invalid user test from 186.3.12.54 port 38362 ssh2
...

Jun 28 15:50:36 minden010 sshd[12840]: Failed password for root from 218.92.0.175 port 11673 ssh2
Jun 28 15:50:39 minden010 sshd[12840]: Failed password for root from 218.92.0.175 port 11673 ssh2
Jun 28 15:50:44 minden010 sshd[12840]: Failed password for root from 218.92.0.175 port 11673 ssh2
Jun 28 15:50:47 minden010 sshd[12840]: Failed password for root from 218.92.0.175 port 11673 ssh2
...

Automatic report - Port Scan Attack

Jun 28 15:28:11 roki-contabo sshd\[14229\]: Invalid user server from 35.220.136.127
Jun 28 15:28:11 roki-contabo sshd\[14229\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=35.220.136.127
Jun 28 15:28:13 roki-contabo sshd\[14229\]: Failed password for invalid user server from 35.220.136.127 port 59698 ssh2
Jun 28 15:33:02 roki-contabo sshd\[14307\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=35.220.136.127  user=root
Jun 28 15:33:04 roki-contabo sshd\[14307\]: Failed password for root from 35.220.136.127 port 40072 ssh2
...

Brute force SMTP login attempted.
...

Jun 28 16:02:18 lnxweb62 sshd[32520]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.8.212.44

5x Failed Password

20/6/28@08:13:30: FAIL: Alarm-Network address from=124.107.183.194
...