Oct 28 12:50:23 dev0-dcde-rnet sshd[2821]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=94.177.203.192
Oct 28 12:50:25 dev0-dcde-rnet sshd[2821]: Failed password for invalid user lizhongwen from 94.177.203.192 port 42562 ssh2
Oct 28 12:54:28 dev0-dcde-rnet sshd[2838]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=94.177.203.192

IP Ban Report :  
 https://help-dysk.pl/wordpress-firewall-plugins/ip/218.241.243.202/ 
 
 CN - 1H : (1026)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : CN 
 NAME ASN : ASN4847 
 
 IP : 218.241.243.202 
 
 CIDR : 218.241.243.0/24 
 
 PREFIX COUNT : 1024 
 
 UNIQUE IP COUNT : 6630912 
 
 
 ATTACKS DETECTED ASN4847 :  
  1H - 1 
  3H - 1 
  6H - 1 
 12H - 1 
 24H - 4 
 
 DateTime : 2019-10-28 04:45:00 
 
 INFO : Port Scan TELNET Detected and Blocked by ADMIN  - data recovery

Unauthorized connection attempt from IP address 94.23.165.68 on Port 3389(RDP)

2019-10-28 H=\(\[193.32.160.150\]\) \[193.32.160.150\] F=\ rejected RCPT \: Unrouteable address
2019-10-28 H=\(\[193.32.160.150\]\) \[193.32.160.150\] F=\ rejected RCPT \: Unrouteable address
2019-10-28 H=\(\[193.32.160.150\]\) \[193.32.160.150\] F=\ rejected RCPT \: Unrouteable address

Received: from saki-gmbh.de (saki-gmbh.de [81.169.219.115])

Oct 28 12:20:19 mc1 kernel: \[3547949.597847\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=45.136.109.215 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=243 ID=23407 PROTO=TCP SPT=43015 DPT=4374 WINDOW=1024 RES=0x00 SYN URGP=0 
Oct 28 12:21:33 mc1 kernel: \[3548023.504919\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=45.136.109.215 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=243 ID=45819 PROTO=TCP SPT=43015 DPT=5191 WINDOW=1024 RES=0x00 SYN URGP=0 
Oct 28 12:23:18 mc1 kernel: \[3548128.393669\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=45.136.109.215 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=5076 PROTO=TCP SPT=43015 DPT=6966 WINDOW=1024 RES=0x00 SYN URGP=0 
...

Oct 28 05:38:06 dedicated sshd[4627]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=195.154.82.61  user=root
Oct 28 05:38:08 dedicated sshd[4627]: Failed password for root from 195.154.82.61 port 58618 ssh2

Oct 28 11:40:53 game-panel sshd[7414]: Failed password for root from 106.51.33.29 port 39156 ssh2
Oct 28 11:45:06 game-panel sshd[7553]: Failed password for root from 106.51.33.29 port 49232 ssh2

2019-10-28T06:22:44.5393151495-001 sshd\[12172\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.94.100  user=root
2019-10-28T06:22:45.9520771495-001 sshd\[12172\]: Failed password for root from 106.13.94.100 port 39472 ssh2
2019-10-28T06:27:59.1518781495-001 sshd\[12398\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.94.100  user=root
2019-10-28T06:28:01.4777031495-001 sshd\[12398\]: Failed password for root from 106.13.94.100 port 48656 ssh2
2019-10-28T06:33:13.5697471495-001 sshd\[12564\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.94.100  user=root
2019-10-28T06:33:16.0010151495-001 sshd\[12564\]: Failed password for root from 106.13.94.100 port 57820 ssh2
...

Oct 28 12:07:38 SilenceServices sshd[25618]: Failed password for mysql from 177.38.178.25 port 47382 ssh2
Oct 28 12:08:01 SilenceServices sshd[25863]: Failed password for mysql from 177.38.178.25 port 42806 ssh2

Oct 28 12:45:04 sso sshd[31668]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.169.159.162
Oct 28 12:45:06 sso sshd[31668]: Failed password for invalid user Scooby from 180.169.159.162 port 50376 ssh2
...

2019-10-17T16:35:41.220459ns525875 sshd\[11462\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.223.243  user=root
2019-10-17T16:35:42.774634ns525875 sshd\[11462\]: Failed password for root from 178.128.223.243 port 58052 ssh2
2019-10-17T16:39:43.974810ns525875 sshd\[16621\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.223.243  user=root
2019-10-17T16:39:46.086124ns525875 sshd\[16621\]: Failed password for root from 178.128.223.243 port 40934 ssh2
2019-10-17T16:43:44.594881ns525875 sshd\[21540\]: Invalid user dev from 178.128.223.243 port 52056
2019-10-17T16:43:44.601081ns525875 sshd\[21540\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.223.243
2019-10-17T16:43:46.797632ns525875 sshd\[21540\]: Failed password for invalid user dev from 178.128.223.243 port 52056 ssh2
2019-10-17T16:47:37.081051ns525875 sshd\[26237\]: Invalid us
...

2019-10-28T07:47:14.876622hub.schaetter.us sshd\[27479\]: Invalid user secretar from 80.211.41.73 port 44016
2019-10-28T07:47:14.891809hub.schaetter.us sshd\[27479\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=80.211.41.73
2019-10-28T07:47:16.460900hub.schaetter.us sshd\[27479\]: Failed password for invalid user secretar from 80.211.41.73 port 44016 ssh2
2019-10-28T07:50:42.869870hub.schaetter.us sshd\[27499\]: Invalid user logcheck from 80.211.41.73 port 54188
2019-10-28T07:50:42.875329hub.schaetter.us sshd\[27499\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=80.211.41.73
...

$f2bV_matches

SSH invalid-user multiple login try