Oct  7 19:14:28 prod4 sshd\[20129\]: Failed password for root from 68.183.90.64 port 36288 ssh2
Oct  7 19:18:59 prod4 sshd\[21654\]: Failed password for root from 68.183.90.64 port 46020 ssh2
Oct  7 19:23:08 prod4 sshd\[23228\]: Failed password for root from 68.183.90.64 port 51396 ssh2
...

Oct 7 13:50:21 *hidden* sshd[14919]: Failed password for *hidden* from 68.183.90.64 port 47026 ssh2 Oct 7 13:54:18 *hidden* sshd[16736]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.90.64 user=root Oct 7 13:54:20 *hidden* sshd[16736]: Failed password for *hidden* from 68.183.90.64 port 52468 ssh2

Automatic report - Banned IP Access

Sep 13 14:08:55 server sshd[19931]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.90.64  user=root
Sep 13 14:08:58 server sshd[19931]: Failed password for invalid user root from 68.183.90.64 port 49350 ssh2
Sep 13 14:17:51 server sshd[20630]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.90.64  user=root
Sep 13 14:17:53 server sshd[20630]: Failed password for invalid user root from 68.183.90.64 port 45794 ssh2

Sep 12 21:28:04 root sshd[3333]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.90.64  user=root
Sep 12 21:28:06 root sshd[3333]: Failed password for root from 68.183.90.64 port 54620 ssh2
...

Sep 12 21:28:04 root sshd[3333]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.90.64  user=root
Sep 12 21:28:06 root sshd[3333]: Failed password for root from 68.183.90.64 port 54620 ssh2
...

Sep  8 10:33:06 melroy-server sshd[27439]: Failed password for root from 68.183.90.64 port 42922 ssh2
...

Sep  8 03:20:40 rancher-0 sshd[1490348]: Invalid user oracle from 68.183.90.64 port 56554
...

Sep  7 20:52:00 marvibiene sshd[17090]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.90.64 
Sep  7 20:52:01 marvibiene sshd[17090]: Failed password for invalid user ftptest from 68.183.90.64 port 53878 ssh2
Sep  7 20:56:04 marvibiene sshd[17301]: Failed password for root from 68.183.90.64 port 56184 ssh2

Aug 31 05:12:52 gospond sshd[15568]: Failed password for invalid user qwt from 68.183.90.64 port 59956 ssh2
Aug 31 05:16:40 gospond sshd[15618]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.90.64  user=root
Aug 31 05:16:41 gospond sshd[15618]: Failed password for root from 68.183.90.64 port 59856 ssh2
...

Aug 29 19:17:00  sshd\[11356\]: Invalid user ad from 68.183.90.64Aug 29 19:17:02  sshd\[11356\]: Failed password for invalid user ad from 68.183.90.64 port 59506 ssh2
...

2020-08-28T08:06:42.618293mail.standpoint.com.ua sshd[16514]: Failed password for invalid user movies from 68.183.90.64 port 46002 ssh2
2020-08-28T08:09:46.114382mail.standpoint.com.ua sshd[17179]: Invalid user zhangjinyang from 68.183.90.64 port 35800
2020-08-28T08:09:46.117143mail.standpoint.com.ua sshd[17179]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.90.64
2020-08-28T08:09:46.114382mail.standpoint.com.ua sshd[17179]: Invalid user zhangjinyang from 68.183.90.64 port 35800
2020-08-28T08:09:47.940642mail.standpoint.com.ua sshd[17179]: Failed password for invalid user zhangjinyang from 68.183.90.64 port 35800 ssh2
...

Oct  5 23:29:48 nopemail auth.info sshd[25323]: Disconnected from authenticating user root 68.183.90.61 port 52968 [preauth]
...

<6 unauthorized SSH connections

Unauthorised connection attempt detected at AUO NODE 4. System is sshd. Protected by AUO Stack Web Application Firewall (WAF)

Aug 28 18:33:29 ovpn sshd\[16305\]: Invalid user user from 68.183.90.130
Aug 28 18:33:29 ovpn sshd\[16305\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.90.130
Aug 28 18:33:32 ovpn sshd\[16305\]: Failed password for invalid user user from 68.183.90.130 port 54418 ssh2
Aug 28 18:42:06 ovpn sshd\[18409\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.90.130  user=root
Aug 28 18:42:08 ovpn sshd\[18409\]: Failed password for root from 68.183.90.130 port 60274 ssh2

Unauthorized SSH login attempts

Aug 22 18:00:46 scw-tender-jepsen sshd[27241]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.90.130
Aug 22 18:00:47 scw-tender-jepsen sshd[27241]: Failed password for invalid user docker from 68.183.90.130 port 54920 ssh2

Aug 21 18:38:22 pornomens sshd\[23632\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.90.130  user=root
Aug 21 18:38:24 pornomens sshd\[23632\]: Failed password for root from 68.183.90.130 port 60672 ssh2
Aug 21 18:54:20 pornomens sshd\[23832\]: Invalid user ftpuser from 68.183.90.130 port 47182
Aug 21 18:54:20 pornomens sshd\[23832\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.90.130
...

Jul 11 19:14:55 gw1 sshd[5823]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.90.28
Jul 11 19:14:57 gw1 sshd[5823]: Failed password for invalid user sakanasi from 68.183.90.28 port 37278 ssh2
...

Jul 10 17:51:27 eventyay sshd[13636]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.90.28
Jul 10 17:51:29 eventyay sshd[13636]: Failed password for invalid user west from 68.183.90.28 port 47186 ssh2
Jul 10 17:59:07 eventyay sshd[13875]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.90.28
...

Brute force attempt

Apr  7 20:46:07 main sshd[6503]: Failed password for invalid user student from 68.183.90.78 port 33276 ssh2
Apr  7 20:48:10 main sshd[6570]: Failed password for invalid user phion from 68.183.90.78 port 53276 ssh2
Apr  7 20:50:14 main sshd[6636]: Failed password for invalid user test from 68.183.90.78 port 45046 ssh2

Lines containing failures of 68.183.90.182
Mar 30 03:38:29 linuxrulz sshd[14276]: Did not receive identification string from 68.183.90.182 port 52236
Mar 30 03:39:38 linuxrulz sshd[14404]: Did not receive identification string from 68.183.90.182 port 42494
Mar 30 03:39:38 linuxrulz sshd[14403]: Did not receive identification string from 68.183.90.182 port 57148
Mar 30 03:41:40 linuxrulz sshd[14998]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.90.182  user=r.r
Mar 30 03:41:43 linuxrulz sshd[14998]: Failed password for r.r from 68.183.90.182 port 33946 ssh2
Mar 30 03:41:44 linuxrulz sshd[14998]: Received disconnect from 68.183.90.182 port 33946:11: Normal Shutdown, Thank you for playing [preauth]
Mar 30 03:41:44 linuxrulz sshd[14998]: Disconnected from authenticating user r.r 68.183.90.182 port 33946 [preauth]
Mar 30 03:41:54 linuxrulz sshd[15000]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ........
------------------------------

Mar 29 06:25:44 shared-1 sshd\[13155\]: Invalid user postgres from 68.183.90.78Mar 29 06:27:41 shared-1 sshd\[13198\]: Invalid user user from 68.183.90.78
...

Fail2Ban - SSH Bruteforce Attempt

Invalid user postgres from 68.183.90.78 port 56918

Apr  6 11:04:33 webhost01 sshd[17298]: Failed password for root from 61.177.172.128 port 60870 ssh2
Apr  6 11:04:37 webhost01 sshd[17298]: Failed password for root from 61.177.172.128 port 60870 ssh2
...

Apr  6 05:41:30 srv206 sshd[22124]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=154.204.30.199  user=root
Apr  6 05:41:33 srv206 sshd[22124]: Failed password for root from 154.204.30.199 port 43376 ssh2
Apr  6 05:56:34 srv206 sshd[22231]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=154.204.30.199  user=root
Apr  6 05:56:36 srv206 sshd[22231]: Failed password for root from 154.204.30.199 port 46244 ssh2
...

Apr  6 05:38:34 web01.agentur-b-2.de postfix/smtps/smtpd[71500]: warning: unknown[78.128.113.83]: SASL PLAIN authentication failed: 
Apr  6 05:38:34 web01.agentur-b-2.de postfix/smtps/smtpd[71500]: lost connection after AUTH from unknown[78.128.113.83]
Apr  6 05:38:46 web01.agentur-b-2.de postfix/smtps/smtpd[71500]: lost connection after AUTH from unknown[78.128.113.83]
Apr  6 05:38:55 web01.agentur-b-2.de postfix/smtps/smtpd[71558]: warning: unknown[78.128.113.83]: SASL PLAIN authentication failed: 
Apr  6 05:38:56 web01.agentur-b-2.de postfix/smtps/smtpd[71558]: lost connection after AUTH from unknown[78.128.113.83]

Apr  6 06:06:17 vps sshd[784565]: Failed password for root from 222.186.180.41 port 49304 ssh2
Apr  6 06:06:20 vps sshd[784565]: Failed password for root from 222.186.180.41 port 49304 ssh2
Apr  6 06:06:24 vps sshd[784565]: Failed password for root from 222.186.180.41 port 49304 ssh2
Apr  6 06:06:27 vps sshd[784565]: Failed password for root from 222.186.180.41 port 49304 ssh2
Apr  6 06:06:30 vps sshd[784565]: Failed password for root from 222.186.180.41 port 49304 ssh2
...

1586145386 - 04/06/2020 05:56:26 Host: 14.244.218.192/14.244.218.192 Port: 445 TCP Blocked

Apr  6 05:49:08 eventyay sshd[29023]: Failed password for root from 95.130.181.11 port 47928 ssh2
Apr  6 05:52:49 eventyay sshd[29173]: Failed password for root from 95.130.181.11 port 57782 ssh2
...

Triggered by Fail2Ban at Ares web server

(imapd) Failed IMAP login from 183.89.214.82 (TH/Thailand/mx-ll-183.89.214-82.dynamic.3bb.in.th): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: Apr  6 08:25:53 ir1 dovecot[566034]: imap-login: Disconnected (auth failed, 1 attempts in 9 secs): user=, method=PLAIN, rip=183.89.214.82, lip=5.63.12.44, session=

Apr  6 04:08:26 work-partkepr sshd\[6935\]: Invalid user git from 200.123.119.163 port 57822
Apr  6 04:08:26 work-partkepr sshd\[6935\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.123.119.163
...

2020-04-06 07:40:33 dovecot_login authenticator failed for \(User\) \[45.142.195.2\]: 535 Incorrect authentication data \(set_id=shweta@org.ua\)2020-04-06 07:41:18 dovecot_login authenticator failed for \(User\) \[45.142.195.2\]: 535 Incorrect authentication data \(set_id=shy@org.ua\)2020-04-06 07:42:05 dovecot_login authenticator failed for \(User\) \[45.142.195.2\]: 535 Incorrect authentication data \(set_id=shy4eva@org.ua\)
...

Brute-force attempt banned

Apr  5 23:48:53 NPSTNNYC01T sshd[7125]: Failed password for root from 159.203.219.38 port 49399 ssh2
Apr  5 23:52:46 NPSTNNYC01T sshd[7308]: Failed password for root from 159.203.219.38 port 55399 ssh2
...

Apr  6 05:50:14 nextcloud sshd\[11495\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=64.225.70.13  user=root
Apr  6 05:50:16 nextcloud sshd\[11495\]: Failed password for root from 64.225.70.13 port 47886 ssh2
Apr  6 05:56:18 nextcloud sshd\[17540\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=64.225.70.13  user=root

Apr  6 07:13:15 www sshd\[4610\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=77.64.242.232  user=root
Apr  6 07:13:17 www sshd\[4610\]: Failed password for root from 77.64.242.232 port 46962 ssh2
Apr  6 07:21:49 www sshd\[4717\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=77.64.242.232  user=root
...

04/06/2020-00:39:48.575717 218.92.0.189 Protocol: 6 ET SCAN Potential SSH Scan