Jun  5 02:35:27 cumulus sshd[12108]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.189.155.12  user=r.r
Jun  5 02:35:29 cumulus sshd[12108]: Failed password for r.r from 5.189.155.12 port 41548 ssh2
Jun  5 02:35:29 cumulus sshd[12108]: Received disconnect from 5.189.155.12 port 41548:11: Bye Bye [preauth]
Jun  5 02:35:29 cumulus sshd[12108]: Disconnected from 5.189.155.12 port 41548 [preauth]
Jun  5 02:49:54 cumulus sshd[13559]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.189.155.12  user=r.r
Jun  5 02:49:57 cumulus sshd[13559]: Failed password for r.r from 5.189.155.12 port 54230 ssh2
Jun  5 02:49:57 cumulus sshd[13559]: Received disconnect from 5.189.155.12 port 54230:11: Bye Bye [preauth]
Jun  5 02:49:57 cumulus sshd[13559]: Disconnected from 5.189.155.12 port 54230 [preauth]
Jun  5 02:53:14 cumulus sshd[13881]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 ........
-------------------------------

detected by Fail2Ban

SSH Brute-Force reported by Fail2Ban

DATE:2020-06-07 14:08:41, IP:167.172.138.53, PORT:telnet Telnet brute force auth on honeypot server (honey-neo-dc)

Jun  7 14:08:38 odroid64 sshd\[9597\]: User root from 200.5.196.218 not allowed because not listed in AllowUsers
Jun  7 14:08:38 odroid64 sshd\[9597\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.5.196.218  user=root
...

Jun  7 14:58:58 fhem-rasp sshd[8966]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=167.71.146.220  user=root
Jun  7 14:59:00 fhem-rasp sshd[8966]: Failed password for root from 167.71.146.220 port 46512 ssh2
...

[2020-06-07 09:03:42] NOTICE[1288] chan_sip.c: Registration from '' failed for '185.130.184.207:49882' - Wrong password
[2020-06-07 09:03:42] SECURITY[1303] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-06-07T09:03:42.538-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="7733",SessionID="0x7f4d74373c98",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.130.184.207/49882",Challenge="759ba608",ReceivedChallenge="759ba608",ReceivedHash="a3431ad36a4afe6faa1455768f931475"
[2020-06-07 09:05:17] NOTICE[1288] chan_sip.c: Registration from '' failed for '185.130.184.207:59653' - Wrong password
[2020-06-07 09:05:17] SECURITY[1303] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-06-07T09:05:17.755-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="2004",SessionID="0x7f4d742d3bb8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.130
...

scans 2 times in preceeding hours on the ports (in chronological order) 3389 3390 resulting in total of 31 scans from 195.54.166.0/23 block.

Lines containing failures of 113.173.239.127
2020-06-07 x@x


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=113.173.239.127

Jun  7 15:19:44 vps639187 sshd\[24664\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=62.234.15.218  user=root
Jun  7 15:19:46 vps639187 sshd\[24664\]: Failed password for root from 62.234.15.218 port 53760 ssh2
Jun  7 15:23:51 vps639187 sshd\[24705\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=62.234.15.218  user=root
...

2020-06-07T13:05:02.858196abusebot-4.cloudsearch.cf sshd[10449]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.24.114.205  user=root
2020-06-07T13:05:04.452332abusebot-4.cloudsearch.cf sshd[10449]: Failed password for root from 118.24.114.205 port 39872 ssh2
2020-06-07T13:06:31.072528abusebot-4.cloudsearch.cf sshd[10530]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.24.114.205  user=root
2020-06-07T13:06:33.218656abusebot-4.cloudsearch.cf sshd[10530]: Failed password for root from 118.24.114.205 port 54002 ssh2
2020-06-07T13:08:01.598237abusebot-4.cloudsearch.cf sshd[10617]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.24.114.205  user=root
2020-06-07T13:08:03.433286abusebot-4.cloudsearch.cf sshd[10617]: Failed password for root from 118.24.114.205 port 39908 ssh2
2020-06-07T13:09:25.773973abusebot-4.cloudsearch.cf sshd[10698]: pam_unix(sshd:auth):
...

06/07/2020-09:02:04.855115 112.85.42.188 Protocol: 6 ET SCAN Potential SSH Scan

Jun  7 14:47:14 debian-2gb-nbg1-2 kernel: \[13792778.919207\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=80.82.77.212 DST=195.201.40.59 LEN=58 TOS=0x00 PREC=0x00 TTL=247 ID=54321 PROTO=UDP SPT=59639 DPT=1604 LEN=38

Port Scan detected!
...

37.187.74.109 - - - [07/Jun/2020:15:16:01 +0200] "GET /wp-login.php HTTP/1.1" 404 564 "-" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36" "-" "-"