Oct 12 14:28:18 ws26vmsma01 sshd[90518]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.164
Oct 12 14:28:20 ws26vmsma01 sshd[90518]: Failed password for invalid user marcy from 128.199.204.164 port 48264 ssh2
...

Oct 12 09:57:32 abendstille sshd\[10380\]: Invalid user user from 128.199.204.164
Oct 12 09:57:32 abendstille sshd\[10380\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.164
Oct 12 09:57:35 abendstille sshd\[10380\]: Failed password for invalid user user from 128.199.204.164 port 55594 ssh2
Oct 12 10:01:28 abendstille sshd\[15329\]: Invalid user john from 128.199.204.164
Oct 12 10:01:28 abendstille sshd\[15329\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.164
...

Sep 30 19:16:52 ovpn sshd\[24137\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.164  user=root
Sep 30 19:16:54 ovpn sshd\[24137\]: Failed password for root from 128.199.204.164 port 52396 ssh2
Sep 30 19:20:51 ovpn sshd\[25119\]: Invalid user debian from 128.199.204.164
Sep 30 19:20:51 ovpn sshd\[25119\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.164
Sep 30 19:20:53 ovpn sshd\[25119\]: Failed password for invalid user debian from 128.199.204.164 port 35466 ssh2

2020-09-30T13:13:00.979478abusebot-2.cloudsearch.cf sshd[560]: Invalid user postgres from 128.199.204.164 port 49698
2020-09-30T13:13:00.984944abusebot-2.cloudsearch.cf sshd[560]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.164
2020-09-30T13:13:00.979478abusebot-2.cloudsearch.cf sshd[560]: Invalid user postgres from 128.199.204.164 port 49698
2020-09-30T13:13:03.283048abusebot-2.cloudsearch.cf sshd[560]: Failed password for invalid user postgres from 128.199.204.164 port 49698 ssh2
2020-09-30T13:17:20.823943abusebot-2.cloudsearch.cf sshd[617]: Invalid user ftpuser from 128.199.204.164 port 55974
2020-09-30T13:17:20.829622abusebot-2.cloudsearch.cf sshd[617]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.164
2020-09-30T13:17:20.823943abusebot-2.cloudsearch.cf sshd[617]: Invalid user ftpuser from 128.199.204.164 port 55974
2020-09-30T13:17:22.485551abusebot-2.cloudsearch.cf sshd[6
...

Tried sshing with brute force.

SSH Brute-Force reported by Fail2Ban

Sep 22 16:38:57 ns382633 sshd\[9266\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.164  user=root
Sep 22 16:38:59 ns382633 sshd\[9266\]: Failed password for root from 128.199.204.164 port 53482 ssh2
Sep 22 16:56:01 ns382633 sshd\[12635\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.164  user=root
Sep 22 16:56:02 ns382633 sshd\[12635\]: Failed password for root from 128.199.204.164 port 45356 ssh2
Sep 22 17:00:37 ns382633 sshd\[13491\]: Invalid user administrador from 128.199.204.164 port 53290
Sep 22 17:00:37 ns382633 sshd\[13491\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.164

(sshd) Failed SSH login from 128.199.204.164 (SG/Singapore/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Sep 22 04:37:40 server4 sshd[15894]: Invalid user micha from 128.199.204.164
Sep 22 04:37:40 server4 sshd[15894]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.164 
Sep 22 04:37:42 server4 sshd[15894]: Failed password for invalid user micha from 128.199.204.164 port 39558 ssh2
Sep 22 04:39:16 server4 sshd[16904]: Invalid user juancarlos from 128.199.204.164
Sep 22 04:39:16 server4 sshd[16904]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.164

(sshd) Failed SSH login from 128.199.204.164 (SG/Singapore/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Sep 17 09:50:13 optimus sshd[3841]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.164  user=root
Sep 17 09:50:15 optimus sshd[3841]: Failed password for root from 128.199.204.164 port 59772 ssh2
Sep 17 09:54:38 optimus sshd[5470]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.164  user=root
Sep 17 09:54:39 optimus sshd[5470]: Failed password for root from 128.199.204.164 port 41738 ssh2
Sep 17 10:03:37 optimus sshd[9386]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.164  user=root

2020-09-17T08:40:36.281633ollin.zadara.org sshd[456757]: Invalid user chad from 128.199.204.164 port 57346
2020-09-17T08:40:38.740285ollin.zadara.org sshd[456757]: Failed password for invalid user chad from 128.199.204.164 port 57346 ssh2
...

Sep 17 00:00:00 mavik sshd[15307]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.164  user=root
Sep 17 00:00:02 mavik sshd[15307]: Failed password for root from 128.199.204.164 port 36264 ssh2
Sep 17 00:03:28 mavik sshd[15510]: Invalid user cehost from 128.199.204.164
Sep 17 00:03:28 mavik sshd[15510]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.164
Sep 17 00:03:31 mavik sshd[15510]: Failed password for invalid user cehost from 128.199.204.164 port 36024 ssh2
...

2020-09-10T10:15:41.293969cyberdyne sshd[514278]: Invalid user nak from 128.199.204.26 port 48994
2020-09-10T10:15:41.297772cyberdyne sshd[514278]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.26
2020-09-10T10:15:41.293969cyberdyne sshd[514278]: Invalid user nak from 128.199.204.26 port 48994
2020-09-10T10:15:43.310306cyberdyne sshd[514278]: Failed password for invalid user nak from 128.199.204.26 port 48994 ssh2
...

2020-09-10T10:15:41.293969cyberdyne sshd[514278]: Invalid user nak from 128.199.204.26 port 48994
2020-09-10T10:15:41.297772cyberdyne sshd[514278]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.204.26
2020-09-10T10:15:41.293969cyberdyne sshd[514278]: Invalid user nak from 128.199.204.26 port 48994
2020-09-10T10:15:43.310306cyberdyne sshd[514278]: Failed password for invalid user nak from 128.199.204.26 port 48994 ssh2
...

Invalid user tomcat from 128.199.204.26 port 51882

...

Jul 12 11:26:00 aat-srv002 sshd[22663]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.198.194.243
Jul 12 11:26:02 aat-srv002 sshd[22663]: Failed password for invalid user test2 from 112.198.194.243 port 60011 ssh2
Jul 12 11:32:34 aat-srv002 sshd[22875]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.198.194.243
Jul 12 11:32:36 aat-srv002 sshd[22875]: Failed password for invalid user postgres from 112.198.194.243 port 48185 ssh2
...

2019-07-12T16:43:32.138327abusebot-8.cloudsearch.cf sshd\[28195\]: Invalid user minecraft1 from 35.187.243.64 port 54342

2019-07-12T16:30:12.007206hub.schaetter.us sshd\[16719\]: Invalid user lab from 218.104.199.131
2019-07-12T16:30:12.048962hub.schaetter.us sshd\[16719\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.104.199.131
2019-07-12T16:30:14.361949hub.schaetter.us sshd\[16719\]: Failed password for invalid user lab from 218.104.199.131 port 45523 ssh2
2019-07-12T16:36:43.666668hub.schaetter.us sshd\[16818\]: Invalid user ms from 218.104.199.131
2019-07-12T16:36:43.715014hub.schaetter.us sshd\[16818\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.104.199.131
...

https://www.amnazonjq.com/
103.70.226.193


Received: from a5.kxiuf.cn (unknown [23.228.119.239])
Return-Path: 
Date: Fri, 12 Jul 2019 13:40:57 +0800
From: "Amazon.co.jp" 
Subject: Amazonアカウントを利用制限しています。_____@_____
Message-ID: <2_____a5.kxiuf.cn>
X-mailer: Foxmail 6, 13, 102, 15 [cn]

Jul 12 19:31:13 vps691689 sshd[1819]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.77.140.244
Jul 12 19:31:15 vps691689 sshd[1819]: Failed password for invalid user git from 51.77.140.244 port 33028 ssh2
...

Jul 12 18:04:12 dev0-dcde-rnet sshd[2517]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=168.232.8.8
Jul 12 18:04:13 dev0-dcde-rnet sshd[2517]: Failed password for invalid user testing from 168.232.8.8 port 58171 ssh2
Jul 12 18:11:31 dev0-dcde-rnet sshd[2533]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=168.232.8.8

Jul 12 18:51:34 localhost sshd\[22102\]: Invalid user admin from 141.98.80.71 port 43760
Jul 12 18:51:34 localhost sshd\[22102\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=141.98.80.71
Jul 12 18:51:36 localhost sshd\[22102\]: Failed password for invalid user admin from 141.98.80.71 port 43760 ssh2

Jul 12 17:52:31 MainVPS sshd[30876]: Invalid user eng from 113.164.244.98 port 42262
Jul 12 17:52:31 MainVPS sshd[30876]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=113.164.244.98
Jul 12 17:52:31 MainVPS sshd[30876]: Invalid user eng from 113.164.244.98 port 42262
Jul 12 17:52:33 MainVPS sshd[30876]: Failed password for invalid user eng from 113.164.244.98 port 42262 ssh2
Jul 12 17:58:48 MainVPS sshd[31299]: Invalid user juliette from 113.164.244.98 port 44846
...

Jul 12 19:27:55 vps691689 sshd[1759]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=101.198.185.11
Jul 12 19:27:57 vps691689 sshd[1759]: Failed password for invalid user com from 101.198.185.11 port 42142 ssh2
Jul 12 19:31:09 vps691689 sshd[1808]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=101.198.185.11
...

Jul 12 08:24:58 vdcadm1 sshd[23751]: Bad protocol version identification '' from 58.219.243.28
Jul 12 08:25:01 vdcadm1 sshd[23752]: User r.r from 58.219.243.28 not allowed because listed in DenyUsers
Jul 12 08:25:01 vdcadm1 sshd[23753]: Connection closed by 58.219.243.28
Jul 12 08:25:04 vdcadm1 sshd[23755]: User r.r from 58.219.243.28 not allowed because listed in DenyUsers
Jul 12 08:25:04 vdcadm1 sshd[23756]: Connection closed by 58.219.243.28
Jul 12 08:25:07 vdcadm1 sshd[23758]: User r.r from 58.219.243.28 not allowed because listed in DenyUsers
Jul 12 08:25:07 vdcadm1 sshd[23759]: Connection closed by 58.219.243.28
Jul 12 08:25:10 vdcadm1 sshd[23761]: User r.r from 58.219.243.28 not allowed because listed in DenyUsers
Jul 12 08:25:10 vdcadm1 sshd[23762]: Connection closed by 58.219.243.28
Jul 12 08:25:15 vdcadm1 sshd[23763]: User r.r from 58.219.243.28 not allowed because listed in DenyUsers
Jul 12 08:25:16 vdcadm1 sshd[23764]: Connection closed by 58.219.243.28
Jul ........
-------------------------------

2019-07-12T16:25:07.394426hub.schaetter.us sshd\[16676\]: Invalid user tan from 134.175.84.31
2019-07-12T16:25:07.425740hub.schaetter.us sshd\[16676\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.175.84.31
2019-07-12T16:25:08.864654hub.schaetter.us sshd\[16676\]: Failed password for invalid user tan from 134.175.84.31 port 44836 ssh2
2019-07-12T16:32:10.672486hub.schaetter.us sshd\[16736\]: Invalid user remotos from 134.175.84.31
2019-07-12T16:32:10.706769hub.schaetter.us sshd\[16736\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.175.84.31
...

Jul 12 11:37:14 vps647732 sshd[12431]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.114.178.109
Jul 12 11:37:16 vps647732 sshd[12431]: Failed password for invalid user admin from 37.114.178.109 port 36000 ssh2
...

IMAP brute force
...

Automatic report - Web App Attack

Jul 12 18:54:57 vps691689 sshd[1437]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.89.19.147
Jul 12 18:54:59 vps691689 sshd[1437]: Failed password for invalid user two from 51.89.19.147 port 57434 ssh2
Jul 12 18:59:55 vps691689 sshd[1485]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.89.19.147
...