Multiple entries:
[client 178.88.57.16:43080] [client 178.88.57.16] ModSecurity: Warning. Pattern match "200" at RESPONSE_STATUS. [file "/etc/httpd/modsec/12_asl_brute.conf"] [line "61"] [id "377360"] [rev "2"] [msg "Atomicorp.com WAF Rules - Login Failure Detection

TCP port 445 (SMB) attempt blocked by firewall. [2019-06-25 08:54:09]

Excessive failed login attempts on port 25

Invalid user admin from 139.59.34.17 port 44614

\[2019-06-25 13:54:39\] NOTICE\[6698\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '5.62.20.29:4910' \(callid: 1216347939-613472863-126438486\) - Failed to authenticate
\[2019-06-25 13:54:39\] SECURITY\[3671\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2019-06-25T13:54:39.174+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="\",SessionID="1216347939-613472863-126438486",LocalAddress="IPV4/UDP/188.40.118.248/5060",RemoteAddress="IPV4/UDP/5.62.20.29/4910",Challenge="1561463679/908ad69afd13bf595c71f9ddde1414b5",Response="97a521c61d622031eeb01fbc8b4087bc",ExpectedResponse=""
\[2019-06-25 13:54:39\] NOTICE\[5109\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '5.62.20.29:4910' \(callid: 1216347939-613472863-126438486\) - Failed to authenticate
\[2019-06-25 13:54:39\] SECURITY\[3671\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventT

Unauthorized connection attempt from IP address 42.112.81.82 on Port 445(SMB)

Jun 24 13:42:15 toyboy sshd[8272]: reveeclipse mapping checking getaddrinfo for 88.220.141.122.adsl-pool.jlccptt.net.cn [122.141.220.88] failed - POSSIBLE BREAK-IN ATTEMPT!
Jun 24 13:42:15 toyboy sshd[8272]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.141.220.88  user=r.r
Jun 24 13:42:17 toyboy sshd[8272]: Failed password for r.r from 122.141.220.88 port 40686 ssh2
Jun 24 13:42:19 toyboy sshd[8272]: Failed password for r.r from 122.141.220.88 port 40686 ssh2
Jun 24 13:42:21 toyboy sshd[8272]: Failed password for r.r from 122.141.220.88 port 40686 ssh2
Jun 24 13:42:23 toyboy sshd[8272]: Failed password for r.r from 122.141.220.88 port 40686 ssh2
Jun 24 13:42:25 toyboy sshd[8272]: Failed password for r.r from 122.141.220.88 port 40686 ssh2
Jun 24 13:42:27 toyboy sshd[8272]: Failed password for r.r from 122.141.220.88 port 40686 ssh2
Jun 24 13:42:27 toyboy sshd[8272]: Disconnecting: Too many authentication failures for r.r fr........
-------------------------------

TCP port 445 (SMB) attempt blocked by firewall. [2019-06-25 12:10:32]

Unauthorized connection attempt from IP address 1.1.202.228 on Port 445(SMB)

SSH Brute-Force attacks

Jun 25 11:54:19 host sshd[7814]: Invalid user kirk from 223.207.60.50 port 57526
Jun 25 11:54:19 host sshd[7814]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=223.207.60.50
Jun 25 11:54:21 host sshd[7814]: Failed password for invalid user kirk from 223.207.60.50 port 57526 ssh2
Jun 25 11:54:21 host sshd[7814]: Received disconnect from 223.207.60.50 port 57526:11: Bye Bye [preauth]
Jun 25 11:54:21 host sshd[7814]: Disconnected from invalid user kirk 223.207.60.50 port 57526 [preauth]


........
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https://www.blocklist.de/en/view.html?ip=223.207.60.50

60001/tcp 60001/tcp 60001/tcp...
[2019-06-12/25]5pkt,1pt.(tcp)

Jun 25 09:38:28 meumeu sshd[12978]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=109.133.105.154 
Jun 25 09:38:30 meumeu sshd[12978]: Failed password for invalid user admin from 109.133.105.154 port 49835 ssh2
Jun 25 09:40:13 meumeu sshd[13174]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=109.133.105.154 
...

firewall-block, port(s): 81/tcp

1561445746 - 06/25/2019 08:55:46 Host: scan-08c.shadowserver.org/216.218.206.81 Port: 1434 UDP Blocked