$f2bV_matches

Jun 13 04:57:22 vlre-nyc-1 sshd\[3985\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.178.50.20  user=root
Jun 13 04:57:24 vlre-nyc-1 sshd\[3985\]: Failed password for root from 51.178.50.20 port 42102 ssh2
Jun 13 05:03:16 vlre-nyc-1 sshd\[4150\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.178.50.20  user=root
Jun 13 05:03:18 vlre-nyc-1 sshd\[4150\]: Failed password for root from 51.178.50.20 port 43256 ssh2
Jun 13 05:06:20 vlre-nyc-1 sshd\[4239\]: Invalid user lam from 51.178.50.20
Jun 13 05:06:20 vlre-nyc-1 sshd\[4239\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.178.50.20
...

Brute-force attempt banned

Jun 13 06:47:44 ip-172-31-61-156 sshd[27671]: Invalid user avto from 110.8.67.146
Jun 13 06:47:44 ip-172-31-61-156 sshd[27671]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=110.8.67.146
Jun 13 06:47:44 ip-172-31-61-156 sshd[27671]: Invalid user avto from 110.8.67.146
Jun 13 06:47:46 ip-172-31-61-156 sshd[27671]: Failed password for invalid user avto from 110.8.67.146 port 46808 ssh2
Jun 13 06:50:06 ip-172-31-61-156 sshd[27790]: Invalid user zhouh from 110.8.67.146
...

[2020-06-13 03:31:17] NOTICE[1273] chan_sip.c: Registration from '' failed for '45.89.174.46:50594' - Wrong password
[2020-06-13 03:31:17] SECURITY[1288] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-06-13T03:31:17.483-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="9991",SessionID="0x7f31c02f7128",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.89.174.46/50594",Challenge="6c3510dc",ReceivedChallenge="6c3510dc",ReceivedHash="c03a4b9d511f6160d1c371cff5c2edfd"
[2020-06-13 03:32:05] NOTICE[1273] chan_sip.c: Registration from '' failed for '45.89.174.46:51965' - Wrong password
...

2020-06-13T07:24:55.069343abusebot-2.cloudsearch.cf sshd[20925]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.167  user=root
2020-06-13T07:24:57.430364abusebot-2.cloudsearch.cf sshd[20925]: Failed password for root from 222.186.175.167 port 19486 ssh2
2020-06-13T07:25:00.736824abusebot-2.cloudsearch.cf sshd[20925]: Failed password for root from 222.186.175.167 port 19486 ssh2
2020-06-13T07:24:55.069343abusebot-2.cloudsearch.cf sshd[20925]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.167  user=root
2020-06-13T07:24:57.430364abusebot-2.cloudsearch.cf sshd[20925]: Failed password for root from 222.186.175.167 port 19486 ssh2
2020-06-13T07:25:00.736824abusebot-2.cloudsearch.cf sshd[20925]: Failed password for root from 222.186.175.167 port 19486 ssh2
2020-06-13T07:24:55.069343abusebot-2.cloudsearch.cf sshd[20925]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 
...

Jun 13 09:09:05 abendstille sshd\[10673\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=205.252.40.193  user=root
Jun 13 09:09:07 abendstille sshd\[10673\]: Failed password for root from 205.252.40.193 port 37681 ssh2
Jun 13 09:10:35 abendstille sshd\[12247\]: Invalid user mediatomb from 205.252.40.193
Jun 13 09:10:35 abendstille sshd\[12247\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=205.252.40.193
Jun 13 09:10:37 abendstille sshd\[12247\]: Failed password for invalid user mediatomb from 205.252.40.193 port 48133 ssh2
...

Jun 13 07:09:32 ns382633 sshd\[10371\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.233.177.197  user=root
Jun 13 07:09:34 ns382633 sshd\[10371\]: Failed password for root from 49.233.177.197 port 54672 ssh2
Jun 13 07:22:37 ns382633 sshd\[12720\]: Invalid user two from 49.233.177.197 port 36216
Jun 13 07:22:37 ns382633 sshd\[12720\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.233.177.197
Jun 13 07:22:38 ns382633 sshd\[12720\]: Failed password for invalid user two from 49.233.177.197 port 36216 ssh2

reported through recidive - multiple failed attempts(SSH)

Jun 13 05:05:28 gestao sshd[30999]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=38.102.172.47 
Jun 13 05:05:30 gestao sshd[30999]: Failed password for invalid user admin from 38.102.172.47 port 22482 ssh2
Jun 13 05:08:47 gestao sshd[31058]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=38.102.172.47 
...

(sshd) Failed SSH login from 116.92.213.114 (HK/Hong Kong/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Jun 13 10:01:24 srv sshd[12248]: Invalid user diag from 116.92.213.114 port 59202
Jun 13 10:01:27 srv sshd[12248]: Failed password for invalid user diag from 116.92.213.114 port 59202 ssh2
Jun 13 10:03:24 srv sshd[12303]: Invalid user kevin from 116.92.213.114 port 53134
Jun 13 10:03:26 srv sshd[12303]: Failed password for invalid user kevin from 116.92.213.114 port 53134 ssh2
Jun 13 10:04:38 srv sshd[12317]: Invalid user leonardo from 116.92.213.114 port 41244

Brute-force attempt banned

Jun 13 09:17:51 piServer sshd[21440]: Failed password for root from 176.57.75.165 port 35316 ssh2
Jun 13 09:21:22 piServer sshd[21785]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=176.57.75.165 
Jun 13 09:21:24 piServer sshd[21785]: Failed password for invalid user sababo from 176.57.75.165 port 34604 ssh2
...

Jun 13 06:08:50 mail sshd[22850]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=149.202.164.82
Jun 13 06:08:51 mail sshd[22850]: Failed password for invalid user minecraft from 149.202.164.82 port 55812 ssh2
...

Portscan or hack attempt detected by psad/fwsnort