2020-09-08T11:40:08.902607amanda2.illicoweb.com sshd\[15352\]: Invalid user postdrop from 51.255.197.164 port 55595
2020-09-08T11:40:08.904878amanda2.illicoweb.com sshd\[15352\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=164.ip-51-255-197.eu
2020-09-08T11:40:10.760380amanda2.illicoweb.com sshd\[15352\]: Failed password for invalid user postdrop from 51.255.197.164 port 55595 ssh2
2020-09-08T11:48:27.914508amanda2.illicoweb.com sshd\[15842\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=164.ip-51-255-197.eu  user=root
2020-09-08T11:48:30.276497amanda2.illicoweb.com sshd\[15842\]: Failed password for root from 51.255.197.164 port 37933 ssh2
...

Sep  8 03:43:54 Host-KLAX-C dovecot: imap-login: Disconnected (auth failed, 1 attempts in 4 secs): user=, method=PLAIN, rip=90.150.87.199, lip=185.198.26.142, TLS: Disconnected, session=
...

Wordpress File Manager Plugin Remote Code Execution Vulnerability, PTR: PTR record not found

 TCP (SYN) 157.245.252.225:32767 -> port 8545, len 44

Sep  8 00:52:12 vps-51d81928 sshd[292825]: Invalid user castro from 95.110.229.194 port 40288
Sep  8 00:52:12 vps-51d81928 sshd[292825]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=95.110.229.194 
Sep  8 00:52:12 vps-51d81928 sshd[292825]: Invalid user castro from 95.110.229.194 port 40288
Sep  8 00:52:15 vps-51d81928 sshd[292825]: Failed password for invalid user castro from 95.110.229.194 port 40288 ssh2
Sep  8 00:55:24 vps-51d81928 sshd[292865]: Invalid user ashley from 95.110.229.194 port 37456
...

Sep  8 09:00:33 OPSO sshd\[24865\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.220.238.3  user=root
Sep  8 09:00:35 OPSO sshd\[24865\]: Failed password for root from 112.220.238.3 port 46904 ssh2
Sep  8 09:04:27 OPSO sshd\[25165\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.220.238.3  user=root
Sep  8 09:04:29 OPSO sshd\[25165\]: Failed password for root from 112.220.238.3 port 44338 ssh2
Sep  8 09:08:09 OPSO sshd\[25730\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.220.238.3  user=root

Sep  8 11:46:40 fhem-rasp sshd[27719]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.205.137
Sep  8 11:46:41 fhem-rasp sshd[27719]: Failed password for invalid user admin from 106.12.205.137 port 53122 ssh2
...

Brute forcing RDP port 3389

[2020-09-08 07:17:53] NOTICE[1194] chan_sip.c: Registration from '"660"' failed for '185.65.206.171:19486' - Wrong password
[2020-09-08 07:17:53] SECURITY[1233] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-09-08T07:17:53.841-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="660",SessionID="0x7f2ddc181df8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.65.206.171/19486",Challenge="67a4851a",ReceivedChallenge="67a4851a",ReceivedHash="81e7581d39f81f623958af4a6f2ac661"
[2020-09-08 07:17:54] NOTICE[1194] chan_sip.c: Registration from '"662"' failed for '185.65.206.171:7550' - Wrong password
[2020-09-08 07:17:54] SECURITY[1233] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-09-08T07:17:54.960-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="662",SessionID="0x7f2ddc7349e8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.6
...

Sep  8 06:45:48 marvibiene sshd[13459]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.82.101.10  user=root
Sep  8 06:45:51 marvibiene sshd[13459]: Failed password for root from 190.82.101.10 port 51222 ssh2
Sep  8 06:48:31 marvibiene sshd[13486]: Invalid user romine from 190.82.101.10 port 32784

Sep  8 10:04:12 root sshd[21304]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=140.143.9.145 
...

185.66.233.61 - - [08/Sep/2020:11:27:33 +0100] "POST /wp-login.php HTTP/1.1" 200 1874 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
185.66.233.61 - - [08/Sep/2020:11:27:34 +0100] "POST /wp-login.php HTTP/1.1" 200 1858 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
185.66.233.61 - - [08/Sep/2020:11:27:34 +0100] "POST /xmlrpc.php HTTP/1.1" 403 219 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
...

Unauthorized connection attempt from IP address 200.4.173.22 on Port 445(SMB)

Sep  8 02:24:28 our-server-hostname sshd[24906]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.25.108.201  user=r.r
Sep  8 02:24:30 our-server-hostname sshd[24906]: Failed password for r.r from 118.25.108.201 port 36188 ssh2
Sep  8 02:28:18 our-server-hostname sshd[25412]: Did not receive identification string from 118.25.108.201
Sep  8 02:29:37 our-server-hostname sshd[25592]: Invalid user jon from 118.25.108.201
Sep  8 02:29:37 our-server-hostname sshd[25592]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.25.108.201 
Sep  8 02:29:38 our-server-hostname sshd[25592]: Failed password for invalid user jon from 118.25.108.201 port 35160 ssh2


........
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https://www.blocklist.de/en/view.html?ip=118.25.108.201

Sep  8 09:33:33 IngegnereFirenze sshd[21737]: User root from 116.247.81.99 not allowed because not listed in AllowUsers
...