2019-08-23T05:26:04.235652luisaranguren sshd[15476]: Connection from 52.82.57.166 port 36534 on 10.10.10.6 port 22
2019-08-23T05:26:06.415550luisaranguren sshd[15476]: Invalid user usuario from 52.82.57.166 port 36534
2019-08-23T05:26:06.422041luisaranguren sshd[15476]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=52.82.57.166
2019-08-23T05:26:04.235652luisaranguren sshd[15476]: Connection from 52.82.57.166 port 36534 on 10.10.10.6 port 22
2019-08-23T05:26:06.415550luisaranguren sshd[15476]: Invalid user usuario from 52.82.57.166 port 36534
2019-08-23T05:26:08.769630luisaranguren sshd[15476]: Failed password for invalid user usuario from 52.82.57.166 port 36534 ssh2
...

Aug 22 13:14:55 php2 sshd\[9326\]: Invalid user hg from 159.65.164.133
Aug 22 13:14:55 php2 sshd\[9326\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.65.164.133
Aug 22 13:14:57 php2 sshd\[9326\]: Failed password for invalid user hg from 159.65.164.133 port 35946 ssh2
Aug 22 13:19:27 php2 sshd\[9744\]: Invalid user mara from 159.65.164.133
Aug 22 13:19:27 php2 sshd\[9744\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.65.164.133

Aug 22 22:37:57 yabzik sshd[31169]: Failed password for root from 80.211.51.116 port 58416 ssh2
Aug 22 22:42:02 yabzik sshd[32677]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=80.211.51.116
Aug 22 22:42:04 yabzik sshd[32677]: Failed password for invalid user bruce from 80.211.51.116 port 47724 ssh2

Aug 22 11:32:25 kapalua sshd\[22285\]: Invalid user mike from 139.199.14.128
Aug 22 11:32:25 kapalua sshd\[22285\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.199.14.128
Aug 22 11:32:27 kapalua sshd\[22285\]: Failed password for invalid user mike from 139.199.14.128 port 43826 ssh2
Aug 22 11:34:07 kapalua sshd\[22460\]: Invalid user kaatjeuh from 139.199.14.128
Aug 22 11:34:07 kapalua sshd\[22460\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.199.14.128

Aug 23 01:58:14 dedicated sshd[7951]: Invalid user fan from 192.99.247.232 port 48044

SSH/22 MH Probe, BF, Hack -

Aug 22 23:10:27 legacy sshd[9909]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.209.81.63
Aug 22 23:10:29 legacy sshd[9909]: Failed password for invalid user r from 134.209.81.63 port 33550 ssh2
Aug 22 23:15:11 legacy sshd[10006]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.209.81.63
...

Portscan or hack attempt detected by psad/fwsnort

Aug 23 03:55:29 MK-Soft-VM4 sshd\[634\]: Invalid user pb from 103.126.100.120 port 42626
Aug 23 03:55:29 MK-Soft-VM4 sshd\[634\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.126.100.120
Aug 23 03:55:31 MK-Soft-VM4 sshd\[634\]: Failed password for invalid user pb from 103.126.100.120 port 42626 ssh2
...

$f2bV_matches

\[2019-08-22 21:33:18\] NOTICE\[1829\] chan_sip.c: Registration from '"100"\' failed for '62.210.180.84:47652' - Wrong password
\[2019-08-22 21:33:18\] SECURITY\[1837\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-08-22T21:33:18.165-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="100",SessionID="0x7f7b305a8358",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/62.210.180.84/47652",Challenge="1e054445",ReceivedChallenge="1e054445",ReceivedHash="6b193ed2614761d34e69255c94889100"
\[2019-08-22 21:38:50\] NOTICE\[1829\] chan_sip.c: Registration from '"100"\' failed for '62.210.180.84:48751' - Wrong password
\[2019-08-22 21:38:50\] SECURITY\[1837\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-08-22T21:38:50.860-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="100",SessionID="0x7f7b302cefa8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/62.210.180.84/4

\[2019-08-22 23:39:44\] SECURITY\[1837\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-08-22T23:39:44.504-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="9011441904911102",SessionID="0x7f7b3010df68",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/134.209.179.157/64912",ACLName="no_extension_match"
\[2019-08-22 23:42:11\] SECURITY\[1837\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-08-22T23:42:11.741-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="011441904911102",SessionID="0x7f7b301f31b8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/134.209.179.157/59500",ACLName="no_extension_match"
\[2019-08-22 23:45:29\] SECURITY\[1837\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-08-22T23:45:29.215-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="9011441904911102",SessionID="0x7f7b305a8358",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/134.209.179.157/62742",ACLName

Aug 23 04:08:34 MK-Soft-VM5 sshd\[23682\]: Invalid user oracle from 216.144.251.86 port 43540
Aug 23 04:08:34 MK-Soft-VM5 sshd\[23682\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=216.144.251.86
Aug 23 04:08:35 MK-Soft-VM5 sshd\[23682\]: Failed password for invalid user oracle from 216.144.251.86 port 43540 ssh2
...

abasicmove.de 138.197.172.198 \[22/Aug/2019:23:34:05 +0200\] "POST /wp-login.php HTTP/1.1" 200 5766 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
abasicmove.de 138.197.172.198 \[22/Aug/2019:23:34:06 +0200\] "POST /wp-login.php HTTP/1.1" 200 5561 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"

Automatic report - Banned IP Access