Aug 12 19:19:22 vps200512 sshd\[14151\]: Invalid user webadmin from 67.85.105.1
Aug 12 19:19:22 vps200512 sshd\[14151\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=67.85.105.1
Aug 12 19:19:24 vps200512 sshd\[14151\]: Failed password for invalid user webadmin from 67.85.105.1 port 56702 ssh2
Aug 12 19:24:08 vps200512 sshd\[14306\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=67.85.105.1  user=mysql
Aug 12 19:24:11 vps200512 sshd\[14306\]: Failed password for mysql from 67.85.105.1 port 48230 ssh2

Aug 13 01:35:53 server2 sshd\[17743\]: Invalid user fake from 134.209.155.248
Aug 13 01:35:54 server2 sshd\[17745\]: Invalid user support from 134.209.155.248
Aug 13 01:35:55 server2 sshd\[17747\]: Invalid user ubnt from 134.209.155.248
Aug 13 01:35:56 server2 sshd\[17749\]: Invalid user admin from 134.209.155.248
Aug 13 01:35:58 server2 sshd\[17751\]: User root from 134.209.155.248 not allowed because not listed in AllowUsers
Aug 13 01:35:59 server2 sshd\[17753\]: Invalid user admin from 134.209.155.248

Aug 13 01:54:26 www sshd\[9012\]: Invalid user nokia from 119.139.198.166Aug 13 01:54:28 www sshd\[9012\]: Failed password for invalid user nokia from 119.139.198.166 port 56934 ssh2Aug 13 02:00:45 www sshd\[9077\]: Invalid user test6 from 119.139.198.166
...

445/tcp 445/tcp 445/tcp...
[2019-07-29/08-12]4pkt,1pt.(tcp)

Aug 13 00:10:45 vserver sshd\[25601\]: Failed password for root from 94.100.6.27 port 56607 ssh2Aug 13 00:10:49 vserver sshd\[25601\]: Failed password for root from 94.100.6.27 port 56607 ssh2Aug 13 00:10:51 vserver sshd\[25601\]: Failed password for root from 94.100.6.27 port 56607 ssh2Aug 13 00:10:54 vserver sshd\[25601\]: Failed password for root from 94.100.6.27 port 56607 ssh2
...

Aug 12 23:30:51 debian sshd\[14492\]: Invalid user tatiana from 37.203.208.3 port 36084
Aug 12 23:30:51 debian sshd\[14492\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.203.208.3
...

Aug 13 00:39:35 plex sshd[18313]: Invalid user kumari from 37.221.194.126 port 39455

Splunk® : Brute-Force login attempt on SSH:
Aug 12 19:07:17 testbed sshd[31337]: Disconnected from 178.128.86.127 port 36584 [preauth]

23/tcp 23/tcp
[2019-07-01/08-12]2pkt

\[2019-08-12 18:57:22\] NOTICE\[2288\] chan_sip.c: Registration from '"4306" \' failed for '185.203.236.47:5064' - Wrong password
\[2019-08-12 18:57:22\] SECURITY\[2326\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-08-12T18:57:22.377-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="4306",SessionID="0x7ff4d0c799b8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.203.236.47/5064",Challenge="4a3348a8",ReceivedChallenge="4a3348a8",ReceivedHash="0217371ca3307289a3bdf5be6a63b9f7"
\[2019-08-12 18:59:45\] NOTICE\[2288\] chan_sip.c: Registration from '"3406" \' failed for '185.203.236.47:5081' - Wrong password
\[2019-08-12 18:59:45\] SECURITY\[2326\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-08-12T18:59:45.386-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="3406",SessionID="0x7ff4d07952f8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4

Joomla HTTP User Agent Object Injection Vulnerability, PTR: PTR record not found

Aug 13 00:11:17 jane sshd\[27326\]: Invalid user kms from 118.200.199.43 port 42318
Aug 13 00:11:17 jane sshd\[27326\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.200.199.43
Aug 13 00:11:19 jane sshd\[27326\]: Failed password for invalid user kms from 118.200.199.43 port 42318 ssh2
...

445/tcp 445/tcp 445/tcp...
[2019-06-21/08-12]4pkt,1pt.(tcp)

Splunk® : Brute-Force login attempt on SSH:
Aug 12 19:12:23 testbed sshd[32126]: Disconnected from 66.155.18.238 port 37444 [preauth]

CloudCIX Reconnaissance Scan Detected, PTR: PTR record not found