Oct 31 10:56:15 webhost01 sshd[27614]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.122.3
Oct 31 10:56:16 webhost01 sshd[27614]: Failed password for invalid user admin from 178.128.122.3 port 52461 ssh2
...

Oct 31 06:03:12 eventyay sshd[13024]: Failed password for root from 49.88.112.68 port 32062 ssh2
Oct 31 06:03:45 eventyay sshd[13026]: Failed password for root from 49.88.112.68 port 24659 ssh2
Oct 31 06:03:47 eventyay sshd[13026]: Failed password for root from 49.88.112.68 port 24659 ssh2
...

SSH-bruteforce attempts

Oct 30 18:37:05 php1 sshd\[15990\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.234.28.54  user=root
Oct 30 18:37:07 php1 sshd\[15990\]: Failed password for root from 49.234.28.54 port 32802 ssh2
Oct 30 18:41:41 php1 sshd\[16645\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.234.28.54  user=root
Oct 30 18:41:43 php1 sshd\[16645\]: Failed password for root from 49.234.28.54 port 51208 ssh2
Oct 30 18:46:33 php1 sshd\[17218\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.234.28.54  user=root

Oct 31 01:10:22 plusreed sshd[30263]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.217  user=root
Oct 31 01:10:24 plusreed sshd[30263]: Failed password for root from 222.186.175.217 port 64240 ssh2
...

IP Ban Report :  
 https://help-dysk.pl/wordpress-firewall-plugins/ip/5.237.84.77/ 
 
 IR - 1H : (103)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : IR 
 NAME ASN : ASN58224 
 
 IP : 5.237.84.77 
 
 CIDR : 5.237.0.0/16 
 
 PREFIX COUNT : 898 
 
 UNIQUE IP COUNT : 2324736 
 
 
 ATTACKS DETECTED ASN58224 :  
  1H - 1 
  3H - 3 
  6H - 8 
 12H - 19 
 24H - 36 
 
 DateTime : 2019-10-31 04:56:29 
 
 INFO : Port Scan TELNET Detected and Blocked by ADMIN  - data recovery

\[2019-10-31 01:02:14\] NOTICE\[2601\] chan_sip.c: Registration from '105 \' failed for '77.247.108.111:36310' - Wrong password
\[2019-10-31 01:02:14\] SECURITY\[2634\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-10-31T01:02:14.691-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="105",SessionID="0x7fdf2ca2e638",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.108.111/36310",Challenge="3d6a7b04",ReceivedChallenge="3d6a7b04",ReceivedHash="089dffe79b75525700d730c242429dd6"
\[2019-10-31 01:04:04\] NOTICE\[2601\] chan_sip.c: Registration from '109 \' failed for '77.247.108.111:56937' - Wrong password
\[2019-10-31 01:04:04\] SECURITY\[2634\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-10-31T01:04:04.787-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="109",SessionID="0x7fdf2c62c4c8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77

$f2bV_matches

10/31/2019-04:56:42.740581 213.5.18.139 Protocol: 6 ET SCAN Suspicious inbound to MSSQL port 1433

Oct 31 05:38:03 mc1 kernel: \[3783004.574159\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=5.189.16.37 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=239 ID=21646 PROTO=TCP SPT=45830 DPT=429 WINDOW=1024 RES=0x00 SYN URGP=0 
Oct 31 05:40:34 mc1 kernel: \[3783155.365337\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=5.189.16.37 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=239 ID=54358 PROTO=TCP SPT=45830 DPT=3349 WINDOW=1024 RES=0x00 SYN URGP=0 
Oct 31 05:43:00 mc1 kernel: \[3783301.304147\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=5.189.16.37 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=239 ID=12538 PROTO=TCP SPT=45830 DPT=324 WINDOW=1024 RES=0x00 SYN URGP=0 
...

Oct 31 04:51:44 vps691689 sshd[24880]: Failed password for root from 41.65.64.36 port 48834 ssh2
Oct 31 04:55:35 vps691689 sshd[24938]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=41.65.64.36
...

ET DROP Dshield Block Listed Source group 1 - port: 11500 proto: TCP cat: Misc Attack

Oct 30 17:50:32 sachi sshd\[20574\]: Invalid user www3@1 from 51.83.78.56
Oct 30 17:50:32 sachi sshd\[20574\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=56.ip-51-83-78.eu
Oct 30 17:50:34 sachi sshd\[20574\]: Failed password for invalid user www3@1 from 51.83.78.56 port 49900 ssh2
Oct 30 17:56:10 sachi sshd\[21036\]: Invalid user Unlimited2017 from 51.83.78.56
Oct 30 17:56:10 sachi sshd\[21036\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=56.ip-51-83-78.eu

Oct 31 04:52:58 h2177944 sshd\[17991\]: Invalid user teamspeakbot from 138.197.175.236 port 38626
Oct 31 04:52:58 h2177944 sshd\[17991\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.197.175.236
Oct 31 04:53:00 h2177944 sshd\[17991\]: Failed password for invalid user teamspeakbot from 138.197.175.236 port 38626 ssh2
Oct 31 04:56:42 h2177944 sshd\[18327\]: Invalid user panshi888 from 138.197.175.236 port 49406
Oct 31 04:56:42 h2177944 sshd\[18327\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.197.175.236
...

Oct 31 06:54:52 server sshd\[14300\]: Invalid user bouncerke from 217.182.158.104 port 50930
Oct 31 06:54:52 server sshd\[14300\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=217.182.158.104
Oct 31 06:54:54 server sshd\[14300\]: Failed password for invalid user bouncerke from 217.182.158.104 port 50930 ssh2
Oct 31 06:58:34 server sshd\[13970\]: Invalid user supervisor from 217.182.158.104 port 20242
Oct 31 06:58:34 server sshd\[13970\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=217.182.158.104