IMAP brute force
...

Oct 10 08:42:44 Tower sshd[2078]: Connection from 37.139.24.204 port 54484 on 192.168.10.220 port 22
Oct 10 08:42:57 Tower sshd[2078]: Failed password for root from 37.139.24.204 port 54484 ssh2
Oct 10 08:42:57 Tower sshd[2078]: Received disconnect from 37.139.24.204 port 54484:11: Bye Bye [preauth]
Oct 10 08:42:57 Tower sshd[2078]: Disconnected from authenticating user root 37.139.24.204 port 54484 [preauth]

Oct 10 19:22:16 OPSO sshd\[30766\]: Invalid user Vogue@2017 from 106.54.196.110 port 33728
Oct 10 19:22:16 OPSO sshd\[30766\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.54.196.110
Oct 10 19:22:18 OPSO sshd\[30766\]: Failed password for invalid user Vogue@2017 from 106.54.196.110 port 33728 ssh2
Oct 10 19:26:23 OPSO sshd\[31459\]: Invalid user Vendor@123 from 106.54.196.110 port 40682
Oct 10 19:26:23 OPSO sshd\[31459\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.54.196.110

Tried sshing with brute force.

Oct 10 10:25:56 ny01 sshd[10463]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.119.189.93
Oct 10 10:25:58 ny01 sshd[10463]: Failed password for invalid user P@SS@123 from 157.119.189.93 port 41090 ssh2
Oct 10 10:30:40 ny01 sshd[11003]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.119.189.93

Oct 10 19:25:30 localhost sshd\[9330\]: Invalid user Pa\$\$word@2016 from 5.39.67.154 port 36332
Oct 10 19:25:30 localhost sshd\[9330\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.39.67.154
Oct 10 19:25:32 localhost sshd\[9330\]: Failed password for invalid user Pa\$\$word@2016 from 5.39.67.154 port 36332 ssh2

IP Ban Report : https://help-dysk.pl/wordpress-firewall-plugins/ip/190.179.68.227/ 
 AR - 1H : (24)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : AR 
 NAME ASN : ASN22927 
 
 IP : 190.179.68.227 
 
 CIDR : 190.178.0.0/15 
 
 PREFIX COUNT : 244 
 
 UNIQUE IP COUNT : 4001024 
 
 
 WYKRYTE ATAKI Z ASN22927 :  
  1H - 1 
  3H - 2 
  6H - 3 
 12H - 4 
 24H - 15 
 
 DateTime : 2019-10-10 13:51:29 
 
 INFO : Port Scan TELNET Detected and Blocked by ADMIN  - data recovery

Forged login request.

Oct 10 19:24:53 tux-35-217 sshd\[29599\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.199.27  user=root
Oct 10 19:24:56 tux-35-217 sshd\[29599\]: Failed password for root from 106.12.199.27 port 58966 ssh2
Oct 10 19:29:28 tux-35-217 sshd\[29630\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.199.27  user=root
Oct 10 19:29:30 tux-35-217 sshd\[29630\]: Failed password for root from 106.12.199.27 port 35642 ssh2
...

Port scan on 2 port(s): 82 88

2019-10-10T14:36:27.769104abusebot-6.cloudsearch.cf sshd\[14015\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=14.29.162.139  user=root

Unauthorised access (Oct 10) SRC=183.82.140.239 LEN=52 PREC=0x20 TTL=115 ID=12033 DF TCP DPT=445 WINDOW=8192 SYN

Received: from smtphub10.us.aosmd.com (10.10.10.88) by Nugget.us.aosmd.com
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 2019 09:54:37 -0700
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x-gfi-rh: from 77.49.165.66.dsl.dyn.forthnet.gr (77.49.165.66) by smtphub10.us.aosmd.com (10.10.10.88)
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Date: Thu, 10 Oct 2019 21:54:24 +0200
From: 
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To: 
Subject: Your account was under attack! Change your access data! - [Detected by **SpamRazer**]
Return-Path: dan.brownlee@us.aosmd.com
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This was an extortion email sent to me from your IP address

Oct 10 18:23:46 localhost sshd\[3515\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.23.89  user=root
Oct 10 18:23:48 localhost sshd\[3515\]: Failed password for root from 182.61.23.89 port 52648 ssh2
Oct 10 18:28:33 localhost sshd\[3956\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.23.89  user=root

Oct 10 18:03:25 MainVPS sshd[1076]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.77.147.51  user=root
Oct 10 18:03:28 MainVPS sshd[1076]: Failed password for root from 51.77.147.51 port 54652 ssh2
Oct 10 18:07:04 MainVPS sshd[1377]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.77.147.51  user=root
Oct 10 18:07:06 MainVPS sshd[1377]: Failed password for root from 51.77.147.51 port 37926 ssh2
Oct 10 18:10:47 MainVPS sshd[1759]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.77.147.51  user=root
Oct 10 18:10:48 MainVPS sshd[1759]: Failed password for root from 51.77.147.51 port 49442 ssh2
...