2020-05-14T14:28:50.781062vps751288.ovh.net sshd\[32737\]: Invalid user usuario from 51.68.227.116 port 57064
2020-05-14T14:28:50.790552vps751288.ovh.net sshd\[32737\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.ip-51-68-227.eu
2020-05-14T14:28:53.051274vps751288.ovh.net sshd\[32737\]: Failed password for invalid user usuario from 51.68.227.116 port 57064 ssh2
2020-05-14T14:29:15.559719vps751288.ovh.net sshd\[32741\]: Invalid user user from 51.68.227.116 port 33450
2020-05-14T14:29:15.567714vps751288.ovh.net sshd\[32741\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.ip-51-68-227.eu

May 12 15:32:53 server1 sshd\[21309\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.227.116 
May 12 15:32:55 server1 sshd\[21309\]: Failed password for invalid user craft from 51.68.227.116 port 36916 ssh2
May 12 15:36:40 server1 sshd\[22551\]: Invalid user ftp from 51.68.227.116
May 12 15:36:40 server1 sshd\[22551\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.227.116 
May 12 15:36:42 server1 sshd\[22551\]: Failed password for invalid user ftp from 51.68.227.116 port 43706 ssh2
...

Invalid user yi from 51.68.227.116 port 41986

Apr 16 22:34:25 plex sshd[12882]: Invalid user yx from 51.68.227.116 port 37210

Apr 16 18:56:50 vps sshd[13036]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.227.116 
Apr 16 18:56:52 vps sshd[13036]: Failed password for invalid user xb from 51.68.227.116 port 46466 ssh2
Apr 16 19:04:17 vps sshd[13449]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.227.116 
...

Apr 13 04:51:18 localhost sshd\[1763\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.227.116  user=root
Apr 13 04:51:20 localhost sshd\[1763\]: Failed password for root from 51.68.227.116 port 44810 ssh2
Apr 13 04:57:54 localhost sshd\[1781\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.227.116  user=root
Apr 13 04:57:56 localhost sshd\[1781\]: Failed password for root from 51.68.227.116 port 52048 ssh2

Oct  8 18:57:55 hosting sshd[32025]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=98.ip-51-68-227.eu  user=root
Oct  8 18:57:56 hosting sshd[32025]: Failed password for root from 51.68.227.98 port 42460 ssh2
...

Repeated brute force against a port

Sep 19 16:05:28 PorscheCustomer sshd[21279]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.227.98
Sep 19 16:05:30 PorscheCustomer sshd[21279]: Failed password for invalid user mysql from 51.68.227.98 port 54652 ssh2
Sep 19 16:07:01 PorscheCustomer sshd[21385]: Failed password for root from 51.68.227.98 port 52100 ssh2
...

2020-09-19T04:10:20.982299upcloud.m0sh1x2.com sshd[31638]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=98.ip-51-68-227.eu  user=root
2020-09-19T04:10:23.339153upcloud.m0sh1x2.com sshd[31638]: Failed password for root from 51.68.227.98 port 38682 ssh2

Sep 18 21:48:59 h2865660 sshd[7747]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.227.98  user=root
Sep 18 21:49:01 h2865660 sshd[7747]: Failed password for root from 51.68.227.98 port 43180 ssh2
Sep 18 21:55:52 h2865660 sshd[8006]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.227.98  user=root
Sep 18 21:55:54 h2865660 sshd[8006]: Failed password for root from 51.68.227.98 port 33746 ssh2
Sep 18 21:59:14 h2865660 sshd[8159]: Invalid user server from 51.68.227.98 port 43830
...

SSH Bruteforce attack

Sep 14 12:35:36 sso sshd[8789]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.227.98
Sep 14 12:35:38 sso sshd[8789]: Failed password for invalid user sysman from 51.68.227.98 port 42704 ssh2
...

Aug 25 23:20:20 NG-HHDC-SVS-001 sshd[21275]: Invalid user zmh from 51.68.227.98
...

Aug 24 09:24:59 srv-ubuntu-dev3 sshd[58621]: Invalid user mcftp from 51.68.227.98
Aug 24 09:24:59 srv-ubuntu-dev3 sshd[58621]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.227.98
Aug 24 09:24:59 srv-ubuntu-dev3 sshd[58621]: Invalid user mcftp from 51.68.227.98
Aug 24 09:25:01 srv-ubuntu-dev3 sshd[58621]: Failed password for invalid user mcftp from 51.68.227.98 port 36960 ssh2
Aug 24 09:28:24 srv-ubuntu-dev3 sshd[59007]: Invalid user bob from 51.68.227.98
Aug 24 09:28:24 srv-ubuntu-dev3 sshd[59007]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.227.98
Aug 24 09:28:24 srv-ubuntu-dev3 sshd[59007]: Invalid user bob from 51.68.227.98
Aug 24 09:28:27 srv-ubuntu-dev3 sshd[59007]: Failed password for invalid user bob from 51.68.227.98 port 43246 ssh2
Aug 24 09:31:49 srv-ubuntu-dev3 sshd[59466]: Invalid user repos from 51.68.227.98
...

Aug 20 07:56:17 * sshd[2126]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.227.98
Aug 20 07:56:19 * sshd[2126]: Failed password for invalid user thh from 51.68.227.98 port 57266 ssh2

2020-08-10T03:50:27.511159vps1033 sshd[26693]: Failed password for root from 51.68.227.98 port 59836 ssh2
2020-08-10T03:52:51.997097vps1033 sshd[31955]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=98.ip-51-68-227.eu  user=root
2020-08-10T03:52:53.722583vps1033 sshd[31955]: Failed password for root from 51.68.227.98 port 48242 ssh2
2020-08-10T03:55:26.274644vps1033 sshd[5076]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=98.ip-51-68-227.eu  user=root
2020-08-10T03:55:28.611369vps1033 sshd[5076]: Failed password for root from 51.68.227.98 port 36650 ssh2
...

Aug  6 01:50:50 ny01 sshd[24193]: Failed password for root from 51.68.227.98 port 43138 ssh2
Aug  6 01:54:10 ny01 sshd[24596]: Failed password for root from 51.68.227.98 port 43718 ssh2

Jul 30 00:06:18 ns381471 sshd[10120]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.227.98
Jul 30 00:06:21 ns381471 sshd[10120]: Failed password for invalid user i from 51.68.227.98 port 54952 ssh2

Jul 21 07:18:35 vps647732 sshd[6338]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.227.98
Jul 21 07:18:36 vps647732 sshd[6338]: Failed password for invalid user fax from 51.68.227.98 port 35428 ssh2
...

1782. On Jul 20 2020 experienced a Brute Force SSH login attempt -> 1 unique times by 51.68.227.98.

Automatic report - Banned IP Access

20 attempts against mh-misbehave-ban on storm.magehost.pro

Sep 28 01:53:00 tuotantolaitos sshd[25857]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.59.105.141
Sep 28 01:53:02 tuotantolaitos sshd[25857]: Failed password for invalid user ccc from 139.59.105.141 port 46068 ssh2
...

Sep 27 12:39:39 eddieflores sshd\[3134\]: Invalid user ij from 110.185.106.47
Sep 27 12:39:39 eddieflores sshd\[3134\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=110.185.106.47
Sep 27 12:39:41 eddieflores sshd\[3134\]: Failed password for invalid user ij from 110.185.106.47 port 44106 ssh2
Sep 27 12:44:34 eddieflores sshd\[3524\]: Invalid user villepinte from 110.185.106.47
Sep 27 12:44:34 eddieflores sshd\[3524\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=110.185.106.47

IP Ban Report : https://help-dysk.pl/wordpress-firewall-plugins/ip/188.191.108.234/ 
 UA - 1H : (127)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : UA 
 NAME ASN : ASN43310 
 
 IP : 188.191.108.234 
 
 CIDR : 188.191.108.0/22 
 
 PREFIX COUNT : 7 
 
 UNIQUE IP COUNT : 5376 
 
 
 WYKRYTE ATAKI Z ASN43310 :  
  1H - 1 
  3H - 1 
  6H - 1 
 12H - 1 
 24H - 1 
 
 INFO : SERVER - Looking for resource vulnerabilities Detected and Blocked by ADMIN  - data recovery

SSH invalid-user multiple login attempts

Sep 27 23:57:05 meumeu sshd[19942]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=32.220.54.46 
Sep 27 23:57:07 meumeu sshd[19942]: Failed password for invalid user qx from 32.220.54.46 port 52315 ssh2
Sep 28 00:03:53 meumeu sshd[21333]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=32.220.54.46 
...

chaangnoifulda.de 37.247.52.49 \[27/Sep/2019:23:10:03 +0200\] "POST /wp-login.php HTTP/1.1" 200 5876 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
chaangnoifulda.de 37.247.52.49 \[27/Sep/2019:23:10:03 +0200\] "POST /xmlrpc.php HTTP/1.1" 200 4099 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"

Invalid user buck from 207.154.194.16 port 54060

Sep 28 00:50:45 relay postfix/smtpd\[19514\]: warning: unknown\[46.38.144.32\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 28 00:51:13 relay postfix/smtpd\[30532\]: warning: unknown\[46.38.144.32\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 28 00:53:14 relay postfix/smtpd\[2011\]: warning: unknown\[46.38.144.32\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 28 00:53:42 relay postfix/smtpd\[25812\]: warning: unknown\[46.38.144.32\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 28 00:55:43 relay postfix/smtpd\[1174\]: warning: unknown\[46.38.144.32\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...

firewall-block, port(s): 445/tcp

\[2019-09-27 17:33:47\] SECURITY\[2006\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-27T17:33:47.289-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="01148422069097",SessionID="0x7f1e1c215338",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.182/63983",ACLName="no_extension_match"
\[2019-09-27 17:34:30\] SECURITY\[2006\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-27T17:34:30.130-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="01148422069095",SessionID="0x7f1e1c1dfe48",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.182/53106",ACLName="no_extension_match"
\[2019-09-27 17:34:51\] SECURITY\[2006\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-27T17:34:51.418-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="01148413828011",SessionID="0x7f1e1c975ca8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.182/58358",ACLName="no_ext

Sep 28 00:10:22 ArkNodeAT sshd\[6651\]: Invalid user alenda from 134.209.154.25
Sep 28 00:10:22 ArkNodeAT sshd\[6651\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.209.154.25
Sep 28 00:10:24 ArkNodeAT sshd\[6651\]: Failed password for invalid user alenda from 134.209.154.25 port 56036 ssh2

Fail2Ban Ban Triggered

2019-09-27T22:33:06.194591abusebot-7.cloudsearch.cf sshd\[31266\]: Invalid user research from 118.21.111.124 port 61508