Fail2Ban Ban Triggered

port scan

[2020-04-16 02:06:22] NOTICE[1170] chan_sip.c: Registration from '"370"' failed for '212.129.50.137:6671' - Wrong password
[2020-04-16 02:06:22] SECURITY[1184] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-04-16T02:06:22.360-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="370",SessionID="0x7f6c08099cc8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.129.50.137/6671",Challenge="4098daec",ReceivedChallenge="4098daec",ReceivedHash="bca8c6828bc89e9357ab98d0a5b2694a"
[2020-04-16 02:14:59] NOTICE[1170] chan_sip.c: Registration from '"371"' failed for '212.129.50.137:6707' - Wrong password
[2020-04-16 02:14:59] SECURITY[1184] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-04-16T02:14:59.621-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="371",SessionID="0x7f6c081949a8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.129
...

2020-04-16T06:50:11.120305randservbullet-proofcloud-66.localdomain sshd[16570]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.15.62  user=root
2020-04-16T06:50:12.901535randservbullet-proofcloud-66.localdomain sshd[16570]: Failed password for root from 222.186.15.62 port 53354 ssh2
2020-04-16T06:50:15.246004randservbullet-proofcloud-66.localdomain sshd[16570]: Failed password for root from 222.186.15.62 port 53354 ssh2
2020-04-16T06:50:11.120305randservbullet-proofcloud-66.localdomain sshd[16570]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.15.62  user=root
2020-04-16T06:50:12.901535randservbullet-proofcloud-66.localdomain sshd[16570]: Failed password for root from 222.186.15.62 port 53354 ssh2
2020-04-16T06:50:15.246004randservbullet-proofcloud-66.localdomain sshd[16570]: Failed password for root from 222.186.15.62 port 53354 ssh2
...

Automatic report - Port Scan Attack

Apr 16 05:39:38 h2646465 sshd[8243]: Invalid user shandi from 222.72.137.113
Apr 16 05:39:38 h2646465 sshd[8243]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.72.137.113
Apr 16 05:39:38 h2646465 sshd[8243]: Invalid user shandi from 222.72.137.113
Apr 16 05:39:40 h2646465 sshd[8243]: Failed password for invalid user shandi from 222.72.137.113 port 11445 ssh2
Apr 16 05:49:46 h2646465 sshd[9498]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.72.137.113  user=root
Apr 16 05:49:48 h2646465 sshd[9498]: Failed password for root from 222.72.137.113 port 31129 ssh2
Apr 16 05:53:11 h2646465 sshd[10070]: Invalid user informix from 222.72.137.113
Apr 16 05:53:11 h2646465 sshd[10070]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.72.137.113
Apr 16 05:53:11 h2646465 sshd[10070]: Invalid user informix from 222.72.137.113
Apr 16 05:53:13 h2646465 sshd[10070]: Failed password for invalid u

(sshd) Failed SSH login from 191.191.98.243 (BR/Brazil/bfbf62f3.virtua.com.br): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Apr 16 05:45:12 amsweb01 sshd[10647]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=191.191.98.243  user=root
Apr 16 05:45:14 amsweb01 sshd[10647]: Failed password for root from 191.191.98.243 port 50655 ssh2
Apr 16 05:50:48 amsweb01 sshd[11270]: Invalid user teampspeak from 191.191.98.243 port 51789
Apr 16 05:50:49 amsweb01 sshd[11270]: Failed password for invalid user teampspeak from 191.191.98.243 port 51789 ssh2
Apr 16 05:53:34 amsweb01 sshd[11486]: Invalid user antje from 191.191.98.243 port 36667

Apr 16 01:59:59 firewall sshd[1342]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.211.99.128
Apr 16 01:59:59 firewall sshd[1342]: Invalid user postgres from 129.211.99.128
Apr 16 02:00:01 firewall sshd[1342]: Failed password for invalid user postgres from 129.211.99.128 port 57602 ssh2
...

Automatic report - Banned IP Access

Apr 16 08:56:07 pkdns2 sshd\[19607\]: Invalid user sonso from 51.38.32.230Apr 16 08:56:09 pkdns2 sshd\[19607\]: Failed password for invalid user sonso from 51.38.32.230 port 51880 ssh2Apr 16 09:00:01 pkdns2 sshd\[19751\]: Invalid user es from 51.38.32.230Apr 16 09:00:04 pkdns2 sshd\[19751\]: Failed password for invalid user es from 51.38.32.230 port 59508 ssh2Apr 16 09:03:58 pkdns2 sshd\[19945\]: Invalid user steamuser from 51.38.32.230Apr 16 09:03:59 pkdns2 sshd\[19945\]: Failed password for invalid user steamuser from 51.38.32.230 port 38896 ssh2
...

Invalid user test from 120.236.189.171 port 56632

146.88.240.4 was recorded 132 times by 14 hosts attempting to connect to the following ports: 161,123,27017,1900,1434,1194,111,17,69,10001,520,5093,27970,7788. Incident counter (4h, 24h, all-time): 132, 329, 72411

Apr 16 08:30:37 srv01 sshd[11201]: Invalid user kadmin from 61.183.151.102 port 43478
Apr 16 08:30:37 srv01 sshd[11201]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=61.183.151.102
Apr 16 08:30:37 srv01 sshd[11201]: Invalid user kadmin from 61.183.151.102 port 43478
Apr 16 08:30:39 srv01 sshd[11201]: Failed password for invalid user kadmin from 61.183.151.102 port 43478 ssh2
Apr 16 08:30:37 srv01 sshd[11201]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=61.183.151.102
Apr 16 08:30:37 srv01 sshd[11201]: Invalid user kadmin from 61.183.151.102 port 43478
Apr 16 08:30:39 srv01 sshd[11201]: Failed password for invalid user kadmin from 61.183.151.102 port 43478 ssh2
...

SSH brute-force: detected 7 distinct usernames within a 24-hour window.

prod3
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