Aug 15 11:29:38 ks10 sshd[19774]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=137.74.233.90 
Aug 15 11:29:40 ks10 sshd[19774]: Failed password for invalid user adamp from 137.74.233.90 port 54550 ssh2
...

Aug 15 11:03:46 vps647732 sshd[14236]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=94.23.149.25
Aug 15 11:03:47 vps647732 sshd[14236]: Failed password for invalid user ken from 94.23.149.25 port 45398 ssh2
...

Looking for resource vulnerabilities

Aug 15 17:09:49 webhost01 sshd[4360]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.120.33.30
Aug 15 17:09:51 webhost01 sshd[4360]: Failed password for invalid user rabbitmq from 37.120.33.30 port 51416 ssh2
...

Aug 15 12:38:31 localhost sshd\[25951\]: Invalid user hh from 178.32.122.89 port 54222
Aug 15 12:38:31 localhost sshd\[25951\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.32.122.89
Aug 15 12:38:33 localhost sshd\[25951\]: Failed password for invalid user hh from 178.32.122.89 port 54222 ssh2

2019-08-15 08:58:08,445 fail2ban.actions        [1115]: NOTICE  [sshd] Ban 190.0.22.66
2019-08-15 10:14:10,436 fail2ban.actions        [1115]: NOTICE  [sshd] Ban 190.0.22.66
2019-08-15 11:29:04,504 fail2ban.actions        [1115]: NOTICE  [sshd] Ban 190.0.22.66
...

Aug 15 14:40:39 areeb-Workstation sshd\[2140\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.85.42.194  user=root
Aug 15 14:40:41 areeb-Workstation sshd\[2140\]: Failed password for root from 112.85.42.194 port 55524 ssh2
Aug 15 14:41:09 areeb-Workstation sshd\[2222\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.85.42.194  user=root
...

\[2019-08-15 05:13:24\] NOTICE\[2288\] chan_sip.c: Registration from '\' failed for '5.62.41.113:11771' - Wrong password
\[2019-08-15 05:13:24\] SECURITY\[2326\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-08-15T05:13:24.358-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="2295",SessionID="0x7ff4d0348688",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/5.62.41.113/56315",Challenge="775e37d3",ReceivedChallenge="775e37d3",ReceivedHash="eb2cb2e787247a12a977993cb78c6b82"
\[2019-08-15 05:22:57\] NOTICE\[2288\] chan_sip.c: Registration from '\' failed for '5.62.41.113:11661' - Wrong password
\[2019-08-15 05:22:57\] SECURITY\[2326\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-08-15T05:22:57.786-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="8174",SessionID="0x7ff4d07952f8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/5.62.41.113/566

Aug 14 23:25:27 php1 sshd\[31674\]: Invalid user pt from 165.227.163.87
Aug 14 23:25:27 php1 sshd\[31674\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.227.163.87
Aug 14 23:25:29 php1 sshd\[31674\]: Failed password for invalid user pt from 165.227.163.87 port 52000 ssh2
Aug 14 23:29:49 php1 sshd\[32073\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.227.163.87  user=root
Aug 14 23:29:51 php1 sshd\[32073\]: Failed password for root from 165.227.163.87 port 44322 ssh2

Aug 14 23:25:34 web9 sshd\[25295\]: Invalid user ak from 178.128.255.8
Aug 14 23:25:34 web9 sshd\[25295\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.255.8
Aug 14 23:25:36 web9 sshd\[25295\]: Failed password for invalid user ak from 178.128.255.8 port 48332 ssh2
Aug 14 23:29:53 web9 sshd\[26123\]: Invalid user muki from 178.128.255.8
Aug 14 23:29:53 web9 sshd\[26123\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.255.8

Aug 14 06:50:05 sanyalnet-awsem3-1 sshd[12193]: Connection from 75.117.194.100 port 52966 on 172.30.0.184 port 22
Aug 14 06:50:05 sanyalnet-awsem3-1 sshd[12193]: Invalid user postgres from 75.117.194.100
Aug 14 06:50:08 sanyalnet-awsem3-1 sshd[12193]: Failed password for invalid user postgres from 75.117.194.100 port 52966 ssh2
Aug 14 06:50:08 sanyalnet-awsem3-1 sshd[12193]: Received disconnect from 75.117.194.100: 11: Bye Bye [preauth]
Aug 14 07:00:22 sanyalnet-awsem3-1 sshd[13361]: Connection from 75.117.194.100 port 49694 on 172.30.0.184 port 22
Aug 14 07:00:22 sanyalnet-awsem3-1 sshd[13361]: Invalid user gp from 75.117.194.100


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=75.117.194.100

Aug 15 11:24:13 dev0-dcde-rnet sshd[28905]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.100.28.199
Aug 15 11:24:15 dev0-dcde-rnet sshd[28905]: Failed password for invalid user shop from 121.100.28.199 port 53844 ssh2
Aug 15 11:29:45 dev0-dcde-rnet sshd[28955]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.100.28.199

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Aug 15 05:55:31 xtremcommunity sshd\[2112\]: Invalid user user4 from 165.22.101.189 port 51836
Aug 15 05:55:31 xtremcommunity sshd\[2112\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.22.101.189
Aug 15 05:55:33 xtremcommunity sshd\[2112\]: Failed password for invalid user user4 from 165.22.101.189 port 51836 ssh2
Aug 15 06:00:45 xtremcommunity sshd\[2373\]: Invalid user teamspeak from 165.22.101.189 port 47030
Aug 15 06:00:45 xtremcommunity sshd\[2373\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.22.101.189
...

Aug 15 11:58:18 vps647732 sshd[15671]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.19.218.134
Aug 15 11:58:20 vps647732 sshd[15671]: Failed password for invalid user hua from 134.19.218.134 port 37110 ssh2
...