Jun  5 18:48:28 websrv1.derweidener.de postfix/smtps/smtpd[3105956]: lost connection after CONNECT from unknown[40.76.40.241]
Jun  5 18:48:29 websrv1.derweidener.de postfix/smtps/smtpd[3105956]: NOQUEUE: reject: RCPT from unknown[40.76.40.241]: 554 5.7.1 : Client host rejected: Access denied; from= to= proto=SMTP helo=<50us-03.domain>
Jun  5 18:48:29 websrv1.derweidener.de postfix/submission/smtpd[3105961]: lost connection after CONNECT from unknown[40.76.40.241]
Jun  5 18:48:30 websrv1.derweidener.de postfix/submission/smtpd[3105961]: NOQUEUE: reject: RCPT from unknown[40.76.40.241]: 554 5.7.1 : Client host rejected: Access denied; from= to= proto=ESMTP helo=<50us-03.domain>
Jun  5 18:48:31 websrv1.derweidener.de postfix/submission/smtpd[3105961]: lost connection after RCPT from unknown[40.76.40.241]
Jun  5 18:48:31 websrv1.derweidener.de postfix/smtps/smtpd[3105956]: lost connec

CMS (WordPress or Joomla) login attempt.

40.76.40.117 - - \[04/Jun/2020:14:09:59 +0200\] "POST //wp-login.php HTTP/1.0" 200 6848 "https://die-netzialisten.de//wp-login.php" "Mozilla/5.0 \(Windows NT 10.0\; Win64\; x64\) AppleWebKit/537.36 \(KHTML, like Gecko\) Chrome/78.0.3904.108 Safari/537.36"
40.76.40.117 - - \[04/Jun/2020:14:10:00 +0200\] "POST //wp-login.php HTTP/1.0" 200 6848 "https://die-netzialisten.de//wp-login.php" "Mozilla/5.0 \(Windows NT 10.0\; Win64\; x64\) AppleWebKit/537.36 \(KHTML, like Gecko\) Chrome/78.0.3904.108 Safari/537.36"
40.76.40.117 - - \[04/Jun/2020:14:10:01 +0200\] "POST //wp-login.php HTTP/1.0" 200 6848 "https://die-netzialisten.de//wp-login.php" "Mozilla/5.0 \(Windows NT 10.0\; Win64\; x64\) AppleWebKit/537.36 \(KHTML, like Gecko\) Chrome/78.0.3904.108 Safari/537.36"

40.76.40.117 - - \[04/Jun/2020:10:53:26 +0200\] "POST //wp-login.php HTTP/1.0" 200 6848 "https://die-netzialisten.de//wp-login.php" "Mozilla/5.0 \(Windows NT 10.0\; Win64\; x64\) AppleWebKit/537.36 \(KHTML, like Gecko\) Chrome/78.0.3904.108 Safari/537.36"
40.76.40.117 - - \[04/Jun/2020:10:53:26 +0200\] "POST //wp-login.php HTTP/1.0" 200 6848 "https://die-netzialisten.de//wp-login.php" "Mozilla/5.0 \(Windows NT 10.0\; Win64\; x64\) AppleWebKit/537.36 \(KHTML, like Gecko\) Chrome/78.0.3904.108 Safari/537.36"
40.76.40.117 - - \[04/Jun/2020:10:53:27 +0200\] "POST //wp-login.php HTTP/1.0" 200 6848 "https://die-netzialisten.de//wp-login.php" "Mozilla/5.0 \(Windows NT 10.0\; Win64\; x64\) AppleWebKit/537.36 \(KHTML, like Gecko\) Chrome/78.0.3904.108 Safari/537.36"

40.76.40.117 - - \[03/May/2020:19:55:23 +0200\] "POST //wp-login.php HTTP/1.0" 200 6848 "https://die-netzialisten.de//wp-login.php" "Mozilla/5.0 \(Windows NT 10.0\; Win64\; x64\) AppleWebKit/537.36 \(KHTML, like Gecko\) Chrome/79.0 Safari/537.36"
40.76.40.117 - - \[03/May/2020:19:55:24 +0200\] "POST //wp-login.php HTTP/1.0" 200 6848 "https://die-netzialisten.de//wp-login.php" "Mozilla/5.0 \(Windows NT 10.0\; Win64\; x64\) AppleWebKit/537.36 \(KHTML, like Gecko\) Chrome/79.0 Safari/537.36"
40.76.40.117 - - \[03/May/2020:19:55:24 +0200\] "POST //wp-login.php HTTP/1.0" 200 6848 "https://die-netzialisten.de//wp-login.php" "Mozilla/5.0 \(Windows NT 10.0\; Win64\; x64\) AppleWebKit/537.36 \(KHTML, like Gecko\) Chrome/79.0 Safari/537.36"

40.76.40.117 - - \[02/May/2020:22:23:31 +0200\] "POST //wp-login.php HTTP/1.0" 200 6848 "https://die-netzialisten.de//wp-login.php" "Mozilla/5.0 \(Windows NT 10.0\; Win64\; x64\) AppleWebKit/537.36 \(KHTML, like Gecko\) Chrome/79.0 Safari/537.36"
40.76.40.117 - - \[02/May/2020:22:23:32 +0200\] "POST //wp-login.php HTTP/1.0" 200 6848 "https://die-netzialisten.de//wp-login.php" "Mozilla/5.0 \(Windows NT 10.0\; Win64\; x64\) AppleWebKit/537.36 \(KHTML, like Gecko\) Chrome/79.0 Safari/537.36"
40.76.40.117 - - \[02/May/2020:22:23:33 +0200\] "POST //wp-login.php HTTP/1.0" 200 6848 "https://die-netzialisten.de//wp-login.php" "Mozilla/5.0 \(Windows NT 10.0\; Win64\; x64\) AppleWebKit/537.36 \(KHTML, like Gecko\) Chrome/79.0 Safari/537.36"

40.76.40.117 - - \[02/May/2020:12:50:48 +0200\] "POST //xmlrpc.php HTTP/1.0" 200 825 "-" "Mozilla/5.0 \(Windows NT 10.0\; Win64\; x64\) AppleWebKit/537.36 \(KHTML, like Gecko\) Chrome/79.0 Safari/537.36"
40.76.40.117 - - \[02/May/2020:12:50:48 +0200\] "POST //xmlrpc.php HTTP/1.0" 200 825 "-" "Mozilla/5.0 \(Windows NT 10.0\; Win64\; x64\) AppleWebKit/537.36 \(KHTML, like Gecko\) Chrome/79.0 Safari/537.36"
40.76.40.117 - - \[02/May/2020:12:50:49 +0200\] "POST //xmlrpc.php HTTP/1.0" 200 825 "-" "Mozilla/5.0 \(Windows NT 10.0\; Win64\; x64\) AppleWebKit/537.36 \(KHTML, like Gecko\) Chrome/79.0 Safari/537.36"

Dec  2 06:02:02 web1 sshd\[15208\]: Invalid user loja from 40.76.40.239
Dec  2 06:02:02 web1 sshd\[15208\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=40.76.40.239
Dec  2 06:02:04 web1 sshd\[15208\]: Failed password for invalid user loja from 40.76.40.239 port 40496 ssh2
Dec  2 06:09:04 web1 sshd\[15936\]: Invalid user sunusbot1 from 40.76.40.239
Dec  2 06:09:04 web1 sshd\[15936\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=40.76.40.239

$f2bV_matches

2019-11-18T17:44:50.619067abusebot-2.cloudsearch.cf sshd\[22506\]: Invalid user appldev1234 from 40.76.40.239 port 42086

fire

Nov  3 19:47:42 fr01 sshd[11635]: Invalid user hadoop from 40.76.40.239
Nov  3 19:47:42 fr01 sshd[11635]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=40.76.40.239
Nov  3 19:47:42 fr01 sshd[11635]: Invalid user hadoop from 40.76.40.239
Nov  3 19:47:44 fr01 sshd[11635]: Failed password for invalid user hadoop from 40.76.40.239 port 49016 ssh2
Nov  3 19:51:41 fr01 sshd[12329]: Invalid user test from 40.76.40.239
...

Oct 22 06:29:08 localhost sshd\[29035\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=40.76.40.239  user=root
Oct 22 06:29:10 localhost sshd\[29035\]: Failed password for root from 40.76.40.239 port 48210 ssh2
Oct 22 06:33:02 localhost sshd\[29395\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=40.76.40.239  user=root

Oct 18 05:34:48 apollo sshd\[1716\]: Failed password for root from 40.76.40.239 port 55814 ssh2Oct 18 05:44:56 apollo sshd\[1758\]: Invalid user hx from 40.76.40.239Oct 18 05:44:58 apollo sshd\[1758\]: Failed password for invalid user hx from 40.76.40.239 port 35108 ssh2
...

IP Ban Report : https://help-dysk.pl/wordpress-firewall-plugins/ip/40.76.40.239/ 
 US - 1H : (238)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : US 
 NAME ASN : ASN397466 
 
 IP : 40.76.40.239 
 
 CIDR : 40.76.0.0/14 
 
 PREFIX COUNT : 89 
 
 UNIQUE IP COUNT : 16024832 
 
 
 WYKRYTE ATAKI Z ASN397466 :  
  1H - 9 
  3H - 9 
  6H - 10 
 12H - 10 
 24H - 11 
 
 DateTime : 2019-10-11 06:33:02 
 
 INFO : Port SSH 22 Scan Detected and Blocked by ADMIN  - data recovery

2019-10-09T20:49:40.890522shield sshd\[19787\]: Invalid user p4ssw0rd2017 from 40.76.40.239 port 58528
2019-10-09T20:49:40.895291shield sshd\[19787\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=40.76.40.239
2019-10-09T20:49:42.910459shield sshd\[19787\]: Failed password for invalid user p4ssw0rd2017 from 40.76.40.239 port 58528 ssh2
2019-10-09T20:53:45.826110shield sshd\[20417\]: Invalid user p4ssw0rd2017 from 40.76.40.239 port 42996
2019-10-09T20:53:45.830252shield sshd\[20417\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=40.76.40.239

Mar 24 19:29:09 debian-2gb-nbg1-2 kernel: \[7333632.225372\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=113.109.26.227 DST=195.201.40.59 LEN=44 TOS=0x00 PREC=0x00 TTL=51 ID=0 DF PROTO=TCP SPT=53 DPT=61884 WINDOW=5760 RES=0x00 ACK SYN URGP=0

" "

2020-03-24T21:00:13.065759abusebot.cloudsearch.cf sshd[24496]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.30.76  user=root
2020-03-24T21:00:15.585245abusebot.cloudsearch.cf sshd[24496]: Failed password for root from 222.186.30.76 port 30845 ssh2
2020-03-24T21:00:17.877123abusebot.cloudsearch.cf sshd[24496]: Failed password for root from 222.186.30.76 port 30845 ssh2
2020-03-24T21:00:13.065759abusebot.cloudsearch.cf sshd[24496]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.30.76  user=root
2020-03-24T21:00:15.585245abusebot.cloudsearch.cf sshd[24496]: Failed password for root from 222.186.30.76 port 30845 ssh2
2020-03-24T21:00:17.877123abusebot.cloudsearch.cf sshd[24496]: Failed password for root from 222.186.30.76 port 30845 ssh2
2020-03-24T21:00:13.065759abusebot.cloudsearch.cf sshd[24496]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.1
...

Mar 24 20:29:49 localhost sshd\[27481\]: Invalid user portal from 106.12.208.118
Mar 24 20:29:49 localhost sshd\[27481\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.208.118
Mar 24 20:29:50 localhost sshd\[27481\]: Failed password for invalid user portal from 106.12.208.118 port 55706 ssh2
Mar 24 20:33:12 localhost sshd\[27786\]: Invalid user ns07 from 106.12.208.118
Mar 24 20:33:12 localhost sshd\[27786\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.208.118
...

Mar 18 13:01:29 nginx sshd[87661]: Invalid user admin from 188.226.149.92
Mar 19 13:24:27 nginx sshd[86916]: Invalid user admin from 188.226.149.92
Mar 24 21:08:48 nginx sshd[26709]: Invalid user user from 188.226.149.92

...

Mar 24 20:30:11 vps691689 sshd[9934]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=27.115.15.8
Mar 24 20:30:14 vps691689 sshd[9934]: Failed password for invalid user olin from 27.115.15.8 port 35042 ssh2
Mar 24 20:32:49 vps691689 sshd[10014]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=27.115.15.8
...

(mod_security) mod_security (id:210381) triggered by 89.238.154.24 (GB/United Kingdom/-): 5 in the last 300 secs

2020-03-24T20:39:46.924480abusebot-4.cloudsearch.cf sshd[30199]: Invalid user mizuhiki from 178.128.123.111 port 42780
2020-03-24T20:39:46.930483abusebot-4.cloudsearch.cf sshd[30199]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.123.111
2020-03-24T20:39:46.924480abusebot-4.cloudsearch.cf sshd[30199]: Invalid user mizuhiki from 178.128.123.111 port 42780
2020-03-24T20:39:48.668226abusebot-4.cloudsearch.cf sshd[30199]: Failed password for invalid user mizuhiki from 178.128.123.111 port 42780 ssh2
2020-03-24T20:45:41.411493abusebot-4.cloudsearch.cf sshd[30536]: Invalid user prudence from 178.128.123.111 port 33558
2020-03-24T20:45:41.417343abusebot-4.cloudsearch.cf sshd[30536]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.123.111
2020-03-24T20:45:41.411493abusebot-4.cloudsearch.cf sshd[30536]: Invalid user prudence from 178.128.123.111 port 33558
2020-03-24T20:45:43.556504abusebot-4.cloud
...

Brute-force attempt banned

Automatic report - Banned IP Access

Mar 24 22:01:06 vpn01 sshd[24146]: Failed password for root from 185.220.100.253 port 11110 ssh2
Mar 24 22:01:12 vpn01 sshd[24146]: Failed password for root from 185.220.100.253 port 11110 ssh2
...

Mar 24 21:35:26 odroid64 sshd\[29044\]: Invalid user monito from 49.235.86.177
Mar 24 21:35:26 odroid64 sshd\[29044\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.235.86.177
...

2020-03-24 21:26:07,917 fail2ban.actions: WARNING [ssh] Ban 106.54.82.34

SSH bruteforce more then 50 syn to 22 port per 10 seconds.