Jul 15 09:28:42 root sshd[23151]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.51.50.206 
Jul 15 09:28:44 root sshd[23151]: Failed password for invalid user martin from 106.51.50.206 port 59716 ssh2
Jul 15 09:34:30 root sshd[23203]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.51.50.206 
...

Sun, 2019-07-14 12:11:10 - UDP Packet - Source:77.247.110.207 Destination:xxx.xxx.xxx.xxx - [PORT SCAN]

\[2019-07-15 10:23:55\] SECURITY\[3671\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2019-07-15T10:23:55.550+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="\",SessionID="1092663168-468306910-624012248",LocalAddress="IPV4/UDP/188.40.118.248/5060",RemoteAddress="IPV4/UDP/178.32.97.170/64172",Challenge="1563179035/3990971c3582a93d0b8b865d6af6c5f4",Response="3bba28fc5094e3e634b12a8175979600",ExpectedResponse=""
\[2019-07-15 10:23:55\] SECURITY\[3671\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2019-07-15T10:23:55.613+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="\",SessionID="1092663168-468306910-624012248",LocalAddress="IPV4/UDP/188.40.118.248/5060",RemoteAddress="IPV4/UDP/178.32.97.170/64172",Challenge="1563179035/3990971c3582a93d0b8b865d6af6c5f4",Response="4514dfeb8cf4b2dcd5cfbdae227dfde4",ExpectedResponse=""
\[2019-07-15 10:23:55\] SECURITY\[3671\] res_security_log.c: SecurityEvent="ChallengeRespon

Jul 15 08:27:00 mail sshd\[9027\]: Invalid user prueba1 from 120.136.167.74 port 57120
Jul 15 08:27:00 mail sshd\[9027\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.136.167.74
Jul 15 08:27:02 mail sshd\[9027\]: Failed password for invalid user prueba1 from 120.136.167.74 port 57120 ssh2
Jul 15 08:31:07 mail sshd\[9065\]: Invalid user test from 120.136.167.74 port 46411
Jul 15 08:31:07 mail sshd\[9065\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.136.167.74
...

Jul 14 23:22:49 vtv3 sshd\[13818\]: Invalid user zabbix from 186.209.74.108 port 32938
Jul 14 23:22:50 vtv3 sshd\[13818\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=186.209.74.108
Jul 14 23:22:52 vtv3 sshd\[13818\]: Failed password for invalid user zabbix from 186.209.74.108 port 32938 ssh2
Jul 14 23:28:52 vtv3 sshd\[16641\]: Invalid user alex from 186.209.74.108 port 59600
Jul 14 23:28:52 vtv3 sshd\[16641\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=186.209.74.108
Jul 14 23:40:42 vtv3 sshd\[22735\]: Invalid user webftp from 186.209.74.108 port 56476
Jul 14 23:40:42 vtv3 sshd\[22735\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=186.209.74.108
Jul 14 23:40:43 vtv3 sshd\[22735\]: Failed password for invalid user webftp from 186.209.74.108 port 56476 ssh2
Jul 14 23:46:41 vtv3 sshd\[25590\]: Invalid user ubuntu from 186.209.74.108 port 54904
Jul 14 23:46:41 vtv3 sshd\[2

Jul 15 08:05:34 reporting2 sshd[5747]: User r.r from 221.167.9.20 not allowed because not listed in AllowUsers
Jul 15 08:05:34 reporting2 sshd[5747]: Failed password for invalid user r.r from 221.167.9.20 port 41442 ssh2
Jul 15 08:05:35 reporting2 sshd[5747]: Failed password for invalid user r.r from 221.167.9.20 port 41442 ssh2
Jul 15 08:05:35 reporting2 sshd[5747]: Failed password for invalid user r.r from 221.167.9.20 port 41442 ssh2
Jul 15 08:05:35 reporting2 sshd[5747]: Failed password for invalid user r.r from 221.167.9.20 port 41442 ssh2
Jul 15 08:05:36 reporting2 sshd[5747]: Failed password for invalid user r.r from 221.167.9.20 port 41442 ssh2
Jul 15 08:05:36 reporting2 sshd[5747]: Failed password for invalid user r.r from 221.167.9.20 port 41442 ssh2


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=221.167.9.20

Jul 15 10:29:11 mail postfix/smtps/smtpd\[24424\]: warning: unknown\[45.13.39.115\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 15 10:31:09 mail postfix/smtps/smtpd\[24424\]: warning: unknown\[45.13.39.115\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 15 10:33:10 mail postfix/smtps/smtpd\[24730\]: warning: unknown\[45.13.39.115\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

Automatic report - Port Scan Attack

15.07.2019 08:26:24 - SMTP Spam without Auth on hMailserver 
Detected by ELinOX-hMail-A2F

Jul 15 09:58:07 mail sshd\[16943\]: Invalid user weaver from 203.213.67.30 port 55120
Jul 15 09:58:07 mail sshd\[16943\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=203.213.67.30
Jul 15 09:58:09 mail sshd\[16943\]: Failed password for invalid user weaver from 203.213.67.30 port 55120 ssh2
Jul 15 10:06:37 mail sshd\[19226\]: Invalid user admin from 203.213.67.30 port 39492
Jul 15 10:06:37 mail sshd\[19226\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=203.213.67.30

Jul 15 04:15:33 TORMINT sshd\[20286\]: Invalid user sandi from 186.250.48.17
Jul 15 04:15:33 TORMINT sshd\[20286\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=186.250.48.17
Jul 15 04:15:35 TORMINT sshd\[20286\]: Failed password for invalid user sandi from 186.250.48.17 port 42610 ssh2
...

Automatic report - Banned IP Access

2019-07-15T08:18:14.617317abusebot-7.cloudsearch.cf sshd\[3633\]: Invalid user app from 85.93.133.178 port 23598

Jul 15 09:29:30 minden010 sshd[547]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.29.52.46
Jul 15 09:29:32 minden010 sshd[547]: Failed password for invalid user janine from 119.29.52.46 port 38524 ssh2
Jul 15 09:33:48 minden010 sshd[2148]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.29.52.46
...

Automatic report - Port Scan Attack