2020-04-05T23:34:15.294743centos sshd[20295]: Failed password for root from 106.12.177.51 port 37308 ssh2
2020-04-05T23:36:47.128689centos sshd[20531]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.177.51  user=root
2020-04-05T23:36:49.426606centos sshd[20531]: Failed password for root from 106.12.177.51 port 46416 ssh2
...

Apr  6 02:11:20 [HOSTNAME] sshd[31501]: User **removed** from 113.133.176.204 not allowed because not listed in AllowUsers
Apr  6 02:11:20 [HOSTNAME] sshd[31501]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=113.133.176.204  user=**removed**
Apr  6 02:11:22 [HOSTNAME] sshd[31501]: Failed password for invalid user **removed** from 113.133.176.204 port 57950 ssh2
...

Bruteforce detected by fail2ban

Apr  6 02:27:58 server sshd[21010]: Failed password for root from 203.109.118.116 port 54426 ssh2
Apr  6 02:32:29 server sshd[22304]: Failed password for root from 203.109.118.116 port 36786 ssh2
Apr  6 02:36:54 server sshd[23477]: Failed password for root from 203.109.118.116 port 47382 ssh2

Apr  6 07:23:36 itv-usvr-02 sshd[9600]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.42.7  user=root
Apr  6 07:23:38 itv-usvr-02 sshd[9600]: Failed password for root from 222.186.42.7 port 35478 ssh2

Apr  6 01:55:02 [HOSTNAME] sshd[31110]: User **removed** from 51.255.233.72 not allowed because not listed in AllowUsers
Apr  6 01:55:02 [HOSTNAME] sshd[31110]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.255.233.72  user=**removed**
Apr  6 01:55:04 [HOSTNAME] sshd[31110]: Failed password for invalid user **removed** from 51.255.233.72 port 59192 ssh2
...

[Mon Apr 06 04:36:54.650773 2020] [:error] [pid 435:tid 140022815487744] [client 94.130.237.96:49324] [client 94.130.237.96] ModSecurity: Access denied with code 403 (phase 2). Pattern match "((?:[~!@#\\\\$%\\\\^&\\\\*\\\\(\\\\)\\\\-\\\\+=\\\\{\\\\}\\\\[\\\\]\\\\|:;\"'\\xc2\\xb4\\xe2\\x80\\x99\\xe2\\x80\\x98`<>][^~!@#\\\\$%\\\\^&\\\\*\\\\(\\\\)\\\\-\\\\+=\\\\{\\\\}\\\\[\\\\]\\\\|:;\"'\\xc2\\xb4\\xe2\\x80\\x99\\xe2\\x80\\x98`<>]*?){12})" at ARGS:id. [file "/etc/modsecurity/owasp-modsecurity-crs-3.2.0/rules/REQUEST-942-APPLICATION-ATTACK-SQLI.conf"] [line "1255"] [id "942430"] [msg "Restricted SQL Character Anomaly Detection (args): # of special characters exceeded (12)"] [data "Matched Data: :prakiraan-cuaca-daerah-malang-dan-batu-seminggu-ke-depan-berlaku-tanggal- found within ARGS:id: 1064:prakiraan-cuaca-daerah-malang-dan-batu-seminggu-ke-depan-berlaku-tanggal-5-11-juli-2016"] [severity "WARNING"] [ver "OWASP_CRS/3.2.0"] [tag "application-multi"] [tag "language-multi"] [tag "platfo
...

2020-04-05T21:41:27.800943ionos.janbro.de sshd[60522]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=54.37.71.235  user=root
2020-04-05T21:41:30.212859ionos.janbro.de sshd[60522]: Failed password for root from 54.37.71.235 port 52883 ssh2
2020-04-05T21:49:43.742869ionos.janbro.de sshd[60569]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=54.37.71.235  user=root
2020-04-05T21:49:45.909666ionos.janbro.de sshd[60569]: Failed password for root from 54.37.71.235 port 58217 ssh2
2020-04-05T21:58:05.291235ionos.janbro.de sshd[60603]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=54.37.71.235  user=root
2020-04-05T21:58:07.717493ionos.janbro.de sshd[60603]: Failed password for root from 54.37.71.235 port 35324 ssh2
2020-04-05T22:05:23.312344ionos.janbro.de sshd[60649]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=54.37.71.235  
...

Apr  6 05:51:03 gw1 sshd[1857]: Failed password for root from 51.178.83.124 port 40100 ssh2
...

Apr  5 14:33:00 mockhub sshd[18699]: Failed password for root from 51.255.149.55 port 60390 ssh2
...

(imapd) Failed IMAP login from 212.142.226.93 (ES/Spain/93.212-142-226.static.clientes.euskaltel.es): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: Apr  6 02:06:46 ir1 dovecot[566034]: imap-login: Disconnected (auth failed, 1 attempts in 6 secs): user=, method=PLAIN, rip=212.142.226.93, lip=5.63.12.44, TLS: Connection closed, session=

SSH brute-force attempt

Automatic report - Port Scan Attack

2020-04-05T22:01:04.489589abusebot-8.cloudsearch.cf sshd[27267]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.142.87.218  user=root
2020-04-05T22:01:06.475980abusebot-8.cloudsearch.cf sshd[27267]: Failed password for root from 121.142.87.218 port 40948 ssh2
2020-04-05T22:05:09.153688abusebot-8.cloudsearch.cf sshd[27506]: Invalid user c from 121.142.87.218 port 51220
2020-04-05T22:05:09.161243abusebot-8.cloudsearch.cf sshd[27506]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.142.87.218
2020-04-05T22:05:09.153688abusebot-8.cloudsearch.cf sshd[27506]: Invalid user c from 121.142.87.218 port 51220
2020-04-05T22:05:11.117049abusebot-8.cloudsearch.cf sshd[27506]: Failed password for invalid user c from 121.142.87.218 port 51220 ssh2
2020-04-05T22:09:10.011882abusebot-8.cloudsearch.cf sshd[27798]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.142.87.218  
...

5x Failed Password