212.83.175.207 - - [16/Aug/2020:14:25:18 +0200] "GET /wp-login.php HTTP/1.1" 200 9032 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
212.83.175.207 - - [16/Aug/2020:14:25:19 +0200] "POST /wp-login.php HTTP/1.1" 200 9283 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
212.83.175.207 - - [16/Aug/2020:14:25:20 +0200] "POST /xmlrpc.php HTTP/1.1" 200 427 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"

212.83.175.207 - - \[15/Aug/2020:22:46:02 +0200\] "POST /wp-login.php HTTP/1.1" 200 12822 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
212.83.175.207 - - \[15/Aug/2020:22:46:03 +0200\] "POST /wp-login.php HTTP/1.1" 200 12657 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
...

212.83.175.207 - - \[14/Aug/2020:07:27:38 +0200\] "POST /wp-login.php HTTP/1.0" 200 9274 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
212.83.175.207 - - \[14/Aug/2020:07:27:39 +0200\] "POST /wp-login.php HTTP/1.0" 200 9243 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
212.83.175.207 - - \[14/Aug/2020:07:27:39 +0200\] "POST /xmlrpc.php HTTP/1.0" 200 736 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"

212.83.175.207 - - [11/Aug/2020:05:56:05 +0200] "GET /wp-login.php HTTP/1.1" 200 6060 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
212.83.175.207 - - [11/Aug/2020:05:56:06 +0200] "POST /wp-login.php HTTP/1.1" 200 6311 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
212.83.175.207 - - [11/Aug/2020:05:56:06 +0200] "POST /xmlrpc.php HTTP/1.1" 200 427 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"

212.83.175.207 - - [10/Aug/2020:13:18:47 +0200] "blog.ruhnke.cloud" "POST /wp-login.php HTTP/1.1" 200 4994 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0" "-"
212.83.175.207 - - [10/Aug/2020:13:18:49 +0200] "blog.ruhnke.cloud" "POST /xmlrpc.php HTTP/1.1" 500 5 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0" "-"
212.83.175.207 - - [10/Aug/2020:13:18:49 +0200] "blog.ruhnke.cloud" "POST /xmlrpc.php HTTP/1.1" 500 5 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0" "-"
212.83.175.207 - - [10/Aug/2020:14:09:10 +0200] "blog.ruhnke.cloud" "POST /wp-login.php HTTP/1.1" 200 4994 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0" "-"
...

WordPress XMLRPC scan :: 212.83.175.207 0.072 BYPASS [06/Aug/2020:21:55:43  0000] [censored_2] "POST /xmlrpc.php HTTP/1.1" 200 236 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"

Brute-force general attack.

ET SCAN Sipvicious Scan - port: 5060 proto: UDP cat: Attempted Information Leak

[2020-04-11 16:48:43] NOTICE[12114] chan_sip.c: Registration from '"618"' failed for '212.83.175.115:24568' - Wrong password
[2020-04-11 16:48:43] SECURITY[12128] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-04-11T16:48:43.460-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="618",SessionID="0x7f020c10de98",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.175.115/24568",Challenge="7aacf8cf",ReceivedChallenge="7aacf8cf",ReceivedHash="47e47693af63438142447ca11ddfa20c"
[2020-04-11 16:57:17] NOTICE[12114] chan_sip.c: Registration from '"634"' failed for '212.83.175.115:24576' - Wrong password
[2020-04-11 16:57:17] SECURITY[12128] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-04-11T16:57:17.517-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="634",SessionID="0x7f020c088288",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/
...

Automatic report - Port Scan Attack

[2020-02-10 19:12:23] NOTICE[1148] chan_sip.c: Registration from '"573"' failed for '212.83.175.114:6878' - Wrong password
[2020-02-10 19:12:23] SECURITY[1163] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-02-10T19:12:23.447-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="573",SessionID="0x7fd82cfcf5b8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.175.114/6878",Challenge="23a531ce",ReceivedChallenge="23a531ce",ReceivedHash="137a8199779167c9424d4957da288532"
[2020-02-10 19:12:25] NOTICE[1148] chan_sip.c: Registration from '"603"' failed for '212.83.175.114:6939' - Wrong password
[2020-02-10 19:12:25] SECURITY[1163] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-02-10T19:12:25.807-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="603",SessionID="0x7fd82c31abc8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.
...

[2020-02-08 15:33:53] NOTICE[1148] chan_sip.c: Registration from '"383"' failed for '212.83.175.114:6244' - Wrong password
[2020-02-08 15:33:53] SECURITY[1163] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-02-08T15:33:53.382-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="383",SessionID="0x7fd82c31abc8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.175.114/6244",Challenge="4958a5f7",ReceivedChallenge="4958a5f7",ReceivedHash="5eccc62f177c6bc7a8294804a2469075"
[2020-02-08 15:33:53] NOTICE[1148] chan_sip.c: Registration from '"371"' failed for '212.83.175.114:6222' - Wrong password
[2020-02-08 15:33:53] SECURITY[1163] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-02-08T15:33:53.530-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="371",SessionID="0x7fd82c5547b8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.
...

firewall-block, port(s): 3389/tcp

02/01/2020-16:55:50.693509 212.83.175.149 Protocol: 6 ET SCAN NMAP -sS window 1024

May 31 14:12:28 nas sshd[14452]: Failed password for root from 91.121.175.61 port 58472 ssh2
May 31 14:24:57 nas sshd[14788]: Failed password for root from 91.121.175.61 port 45900 ssh2
...

May 31 18:34:08 ajax sshd[12259]: Failed password for root from 150.136.220.58 port 60302 ssh2

May 31 14:23:22 firewall sshd[6531]: Failed password for root from 112.85.42.172 port 10676 ssh2
May 31 14:23:26 firewall sshd[6531]: Failed password for root from 112.85.42.172 port 10676 ssh2
May 31 14:23:29 firewall sshd[6531]: Failed password for root from 112.85.42.172 port 10676 ssh2
...

port scan and connect, tcp 23 (telnet)

May 31 19:08:51 amit sshd\[26256\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=210.183.21.48  user=root
May 31 19:08:53 amit sshd\[26256\]: Failed password for root from 210.183.21.48 port 14532 ssh2
May 31 19:16:33 amit sshd\[26847\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=210.183.21.48  user=root
...

2020-05-31T15:52:08.155913ionos.janbro.de sshd[17975]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=184.70.244.67  user=root
2020-05-31T15:52:10.313937ionos.janbro.de sshd[17975]: Failed password for root from 184.70.244.67 port 42820 ssh2
2020-05-31T15:56:07.952933ionos.janbro.de sshd[18008]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=184.70.244.67  user=root
2020-05-31T15:56:09.581066ionos.janbro.de sshd[18008]: Failed password for root from 184.70.244.67 port 48634 ssh2
2020-05-31T16:00:03.032414ionos.janbro.de sshd[18019]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=184.70.244.67  user=root
2020-05-31T16:00:05.060583ionos.janbro.de sshd[18019]: Failed password for root from 184.70.244.67 port 54448 ssh2
2020-05-31T16:04:01.882883ionos.janbro.de sshd[18050]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=184.70.2
...

2020-05-31 14:08:48,985 fail2ban.actions: WARNING [ssh] Ban 201.234.66.133

2020-05-31T19:38:27.722522mail.broermann.family sshd[16879]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.88.112.67  user=root
2020-05-31T19:38:29.930590mail.broermann.family sshd[16879]: Failed password for root from 49.88.112.67 port 53755 ssh2
2020-05-31T19:38:27.722522mail.broermann.family sshd[16879]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.88.112.67  user=root
2020-05-31T19:38:29.930590mail.broermann.family sshd[16879]: Failed password for root from 49.88.112.67 port 53755 ssh2
2020-05-31T19:38:32.148793mail.broermann.family sshd[16879]: Failed password for root from 49.88.112.67 port 53755 ssh2
...

May 31 19:18:34 icinga sshd[6581]: Failed password for root from 49.235.143.244 port 51662 ssh2
May 31 19:26:10 icinga sshd[20007]: Failed password for root from 49.235.143.244 port 52970 ssh2
...

Automatic report - Port Scan Attack

2020-05-31T12:09:17.874712homeassistant sshd[31706]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=209.105.243.145  user=root
2020-05-31T12:09:20.086699homeassistant sshd[31706]: Failed password for root from 209.105.243.145 port 58074 ssh2
...

May 31 14:18:23 vps687878 sshd\[1262\]: Failed password for bin from 119.5.157.124 port 31915 ssh2
May 31 14:21:36 vps687878 sshd\[1650\]: Invalid user rrr from 119.5.157.124 port 54350
May 31 14:21:36 vps687878 sshd\[1650\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.5.157.124
May 31 14:21:37 vps687878 sshd\[1650\]: Failed password for invalid user rrr from 119.5.157.124 port 54350 ssh2
May 31 14:24:49 vps687878 sshd\[1842\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.5.157.124  user=root
...

2020-05-31T12:08:37.276688homeassistant sshd[31683]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.242.56.174  user=root
2020-05-31T12:08:38.995551homeassistant sshd[31683]: Failed password for root from 103.242.56.174 port 44231 ssh2
...

May 28 06:23:01 www sshd[1910]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=124.248.48.105  user=r.r
May 28 06:23:03 www sshd[1910]: Failed password for r.r from 124.248.48.105 port 46590 ssh2
May 28 06:49:27 www sshd[8283]: Invalid user david from 124.248.48.105
May 28 06:49:27 www sshd[8283]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=124.248.48.105 
May 28 06:49:29 www sshd[8283]: Failed password for invalid user david from 124.248.48.105 port 43030 ssh2
May 28 06:52:24 www sshd[9077]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=124.248.48.105  user=r.r
May 28 06:52:26 www sshd[9077]: Failed password for r.r from 124.248.48.105 port 60276 ssh2
May 28 06:55:28 www sshd[9797]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=124.248.48.105  user=nobody
May 28 06:55:30 www sshd[9797]: Failed password ........
-------------------------------

May 31 14:29:56 mail sshd[5750]: Failed password for root from 220.180.153.68 port 53002 ssh2
...