\[2019-09-23 05:51:44\] NOTICE\[14660\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '77.247.110.201:59124' \(callid: 976112485-805759515-16720256\) - Failed to authenticate
\[2019-09-23 05:51:44\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2019-09-23T05:51:44.390+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="\",SessionID="976112485-805759515-16720256",LocalAddress="IPV4/UDP/188.40.118.248/5060",RemoteAddress="IPV4/UDP/77.247.110.201/59124",Challenge="1569210704/1eb8742c80313f7c2e15819bfebd9c72",Response="eb89fbce1c8c829cb0318208522bf18d",ExpectedResponse=""
\[2019-09-23 05:51:44\] NOTICE\[2943\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '77.247.110.201:59124' \(callid: 976112485-805759515-16720256\) - Failed to authenticate
\[2019-09-23 05:51:44\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeRespon

Sep 23 06:57:08 v22019058497090703 sshd[16484]: Failed password for test from 37.139.4.138 port 35245 ssh2
Sep 23 07:00:55 v22019058497090703 sshd[16780]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.139.4.138
Sep 23 07:00:57 v22019058497090703 sshd[16780]: Failed password for invalid user aDmin from 37.139.4.138 port 55538 ssh2
...

2019-09-23T05:57:54.215742abusebot-2.cloudsearch.cf sshd\[2995\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.85.42.177  user=root

Sep 23 08:07:40 MK-Soft-VM4 sshd[17778]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.112.128.99 
Sep 23 08:07:42 MK-Soft-VM4 sshd[17778]: Failed password for invalid user kafka from 36.112.128.99 port 33923 ssh2
...

email spam

Sep 23 01:08:10 aat-srv002 sshd[1692]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.249.193.45
Sep 23 01:08:12 aat-srv002 sshd[1692]: Failed password for invalid user q2w3e4R from 103.249.193.45 port 44050 ssh2
Sep 23 01:12:37 aat-srv002 sshd[1780]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.249.193.45
Sep 23 01:12:38 aat-srv002 sshd[1780]: Failed password for invalid user vivian from 103.249.193.45 port 49428 ssh2
...

Sep 23 08:00:28 webserver postfix/smtpd\[5631\]: warning: unknown\[46.38.144.57\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 23 08:01:47 webserver postfix/smtpd\[8328\]: warning: unknown\[46.38.144.57\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 23 08:03:04 webserver postfix/smtpd\[5631\]: warning: unknown\[46.38.144.57\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 23 08:04:21 webserver postfix/smtpd\[5631\]: warning: unknown\[46.38.144.57\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 23 08:05:37 webserver postfix/smtpd\[5631\]: warning: unknown\[46.38.144.57\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...

Sep 23 08:05:22 vps647732 sshd[30627]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=34.236.6.193
Sep 23 08:05:24 vps647732 sshd[30627]: Failed password for invalid user zabbix from 34.236.6.193 port 41174 ssh2
...

Sep 23 07:00:33 MK-Soft-VM6 sshd[6779]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=148.66.142.135 
Sep 23 07:00:35 MK-Soft-VM6 sshd[6779]: Failed password for invalid user root123456 from 148.66.142.135 port 42614 ssh2
...

Sep 22 19:44:03 web1 sshd\[9067\]: Invalid user login from 54.37.233.163
Sep 22 19:44:03 web1 sshd\[9067\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=54.37.233.163
Sep 22 19:44:05 web1 sshd\[9067\]: Failed password for invalid user login from 54.37.233.163 port 52072 ssh2
Sep 22 19:48:10 web1 sshd\[9535\]: Invalid user demo from 54.37.233.163
Sep 22 19:48:10 web1 sshd\[9535\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=54.37.233.163

IP Ban Report : https://help-dysk.pl/wordpress-firewall-plugins/ip/95.170.233.76/ 
 SK - 1H : (4)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : SK 
 NAME ASN : ASN16006 
 
 IP : 95.170.233.76 
 
 CIDR : 95.170.232.0/22 
 
 PREFIX COUNT : 9 
 
 UNIQUE IP COUNT : 11264 
 
 
 WYKRYTE ATAKI Z ASN16006 :  
  1H - 1 
  3H - 1 
  6H - 1 
 12H - 1 
 24H - 1 
 
 INFO : SERVER - ABB - Looking for resource vulnerabilities Detected and Blocked by ADMIN  - data recovery

Sep 23 07:02:09 vmanager6029 sshd\[24526\]: Invalid user ubuntu from 218.76.158.162 port 37441
Sep 23 07:02:09 vmanager6029 sshd\[24526\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.76.158.162
Sep 23 07:02:11 vmanager6029 sshd\[24526\]: Failed password for invalid user ubuntu from 218.76.158.162 port 37441 ssh2

Sep 23 08:10:35 SilenceServices sshd[15817]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.234.224
Sep 23 08:10:37 SilenceServices sshd[15817]: Failed password for invalid user rebecca from 51.38.234.224 port 49696 ssh2
Sep 23 08:14:39 SilenceServices sshd[16906]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.234.224

23.09.2019 05:58:02 SSH access blocked by firewall

Sep 23 07:08:31 site3 sshd\[245179\]: Invalid user jenkins from 192.99.28.247
Sep 23 07:08:31 site3 sshd\[245179\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.99.28.247
Sep 23 07:08:33 site3 sshd\[245179\]: Failed password for invalid user jenkins from 192.99.28.247 port 45468 ssh2
Sep 23 07:12:36 site3 sshd\[245337\]: Invalid user dhcpd from 192.99.28.247
Sep 23 07:12:36 site3 sshd\[245337\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.99.28.247
...