2020-01-31 18:31:21 auth_cram_md5 authenticator failed for (127.0.0.1) [14.186.221.236]: 535 Incorrect authentication data (set_id=info@polypics.ru)
2020-01-31 18:31:27 auth_plain authenticator failed for (127.0.0.1) [14.186.221.236]: 535 Incorrect authentication data (set_id=info@polypics.ru)
...

(sshd) Failed SSH login from 51.75.70.30 (DE/Germany/30.ip-51-75-70.eu): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Jan 31 19:05:54 elude sshd[15986]: Invalid user admin from 51.75.70.30 port 39822
Jan 31 19:05:56 elude sshd[15986]: Failed password for invalid user admin from 51.75.70.30 port 39822 ssh2
Jan 31 19:28:59 elude sshd[17249]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.75.70.30  user=root
Jan 31 19:29:01 elude sshd[17249]: Failed password for root from 51.75.70.30 port 47097 ssh2
Jan 31 19:32:41 elude sshd[17455]: Invalid user git from 51.75.70.30 port 33939

SSH Brute-Force reported by Fail2Ban

Jan 31 18:31:28 grey postfix/smtpd\[3694\]: NOQUEUE: reject: RCPT from unknown\[91.208.184.171\]: 554 5.7.1 Service unavailable\; Client host \[91.208.184.171\] blocked using psbl.surriel.com\; Listed in PSBL, see http://psbl.org/listing\?ip=91.208.184.171\; from=\<6023-1949-144420-1038-dpeter=videsign.hu@mail.studytim.rest\> to=\ proto=ESMTP helo=\
...

Unauthorized connection attempt detected from IP address 152.136.100.66 to port 2220 [J]

[FriJan3118:36:14.9243322020][:error][pid25773:tid47392790161152][client15.206.88.160:57468][client15.206.88.160]ModSecurity:Accessdeniedwithcode403\(phase2\).Patternmatch"\(\?:\\\\\\\\b\(\?:\\\\\\\\.\(\?:ht\(\?:access\|passwd\|group\)\|www_\?acl\)\|global\\\\\\\\.asa\|httpd\\\\\\\\.conf\|boot\\\\\\\\.ini\|web.config\)\\\\\\\\b\|\(\|\^\|\\\\\\\\.\\\\\\\\.\)/etc/\|/\\\\\\\\.\(\?:history\|bash_history\|sh_history\|env\)\$\)"atREQUEST_FILENAME.[file"/usr/local/apache.ea3/conf/modsec_rules/10_asl_rules.conf"][line"211"][id"390709"][rev"30"][msg"Atomicorp.comWAFRules:Attempttoaccessprotectedfileremotely"][data"/.env"][severity"CRITICAL"][hostname"silversea.galardi.ch"][uri"/.env"][unique_id"XjRljoCIQRbQmPxsvhPzjQAAAQ8"][FriJan3118:37:07.7899022020][:error][pid25773:tid47392758642432][client15.206.88.160:40812][client15.206.88.160]ModSecurity:Accessdeniedwithcode403\(phase2\).Patternmatch"\(\?:\\\\\\\\b\(\?:\\\\\\\\.\(\?:ht\(\?:access\|passwd\|group\)\|www_\?acl\)\|global\\\\\\\\.asa\|httpd\\

Jan 31 19:25:38 silence02 sshd[5295]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.54.196.9
Jan 31 19:25:39 silence02 sshd[5295]: Failed password for invalid user test from 106.54.196.9 port 54884 ssh2
Jan 31 19:28:30 silence02 sshd[5460]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.54.196.9

Unauthorized connection attempt from IP address 203.101.188.170 on Port 445(SMB)

Unauthorized connection attempt from IP address 58.187.21.31 on Port 445(SMB)

Attempts to push qoclkd6375kfjw.php

Jan 31 18:24:46 srv-ubuntu-dev3 sshd[57274]: Invalid user qwe123 from 104.168.163.35
Jan 31 18:24:46 srv-ubuntu-dev3 sshd[57274]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.168.163.35
Jan 31 18:24:46 srv-ubuntu-dev3 sshd[57274]: Invalid user qwe123 from 104.168.163.35
Jan 31 18:24:48 srv-ubuntu-dev3 sshd[57274]: Failed password for invalid user qwe123 from 104.168.163.35 port 34040 ssh2
Jan 31 18:28:00 srv-ubuntu-dev3 sshd[57548]: Invalid user 654321 from 104.168.163.35
Jan 31 18:28:00 srv-ubuntu-dev3 sshd[57548]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.168.163.35
Jan 31 18:28:00 srv-ubuntu-dev3 sshd[57548]: Invalid user 654321 from 104.168.163.35
Jan 31 18:28:02 srv-ubuntu-dev3 sshd[57548]: Failed password for invalid user 654321 from 104.168.163.35 port 35754 ssh2
Jan 31 18:31:03 srv-ubuntu-dev3 sshd[57829]: Invalid user tomas from 104.168.163.35
...

Brute-force attempt banned

Unauthorized connection attempt from IP address 177.37.166.82 on Port 445(SMB)

Unauthorized connection attempt from IP address 41.210.1.170 on Port 445(SMB)

Unauthorized connection attempt from IP address 93.159.242.152 on Port 445(SMB)