(sshd) Failed SSH login from 106.13.184.139 (CN/China/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Aug 28 23:21:33 s1 sshd[15846]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.139  user=root
Aug 28 23:21:35 s1 sshd[15846]: Failed password for root from 106.13.184.139 port 43706 ssh2
Aug 28 23:46:03 s1 sshd[17072]: Invalid user du from 106.13.184.139 port 44094
Aug 28 23:46:05 s1 sshd[17072]: Failed password for invalid user du from 106.13.184.139 port 44094 ssh2
Aug 28 23:51:24 s1 sshd[17293]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.139  user=root

Invalid user yf from 106.13.184.139 port 55502

Fail2Ban Ban Triggered

2020-08-20T21:33:31.281624shield sshd\[8524\]: Invalid user zaid from 106.13.184.139 port 40620
2020-08-20T21:33:31.290621shield sshd\[8524\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.139
2020-08-20T21:33:33.166118shield sshd\[8524\]: Failed password for invalid user zaid from 106.13.184.139 port 40620 ssh2
2020-08-20T21:36:09.698980shield sshd\[8736\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.139  user=root
2020-08-20T21:36:11.263596shield sshd\[8736\]: Failed password for root from 106.13.184.139 port 50786 ssh2

Repeated brute force against a port

<6 unauthorized SSH connections

Failed password for root from 106.13.184.139 port 48182 ssh2
pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.139  user=root
Failed password for root from 106.13.184.139 port 50142 ssh2
pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.139  user=root
Failed password for root from 106.13.184.139 port 52100 ssh2

2020-08-10T08:09:23.932035centos sshd[12995]: Failed password for root from 106.13.184.139 port 59540 ssh2
2020-08-10T08:11:57.393573centos sshd[13412]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.139  user=root
2020-08-10T08:11:59.211037centos sshd[13412]: Failed password for root from 106.13.184.139 port 39422 ssh2
...

Jul 21 01:38:25 eventyay sshd[22188]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.139
Jul 21 01:38:27 eventyay sshd[22188]: Failed password for invalid user jackieg from 106.13.184.139 port 54716 ssh2
Jul 21 01:47:36 eventyay sshd[22740]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.139
...

Jul 18 17:01:17 db sshd[10548]: Invalid user nix from 106.13.184.139 port 52820
...

Jul 10 18:08:46 ws12vmsma01 sshd[13092]: Failed password for invalid user wxm from 106.13.184.139 port 60432 ssh2
Jul 10 18:12:16 ws12vmsma01 sshd[13664]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.139  user=mail
Jul 10 18:12:19 ws12vmsma01 sshd[13664]: Failed password for mail from 106.13.184.139 port 45962 ssh2
...

Jul 10 05:40:11 ns392434 sshd[8212]: Invalid user user1 from 106.13.184.139 port 47376
Jul 10 05:40:11 ns392434 sshd[8212]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.139
Jul 10 05:40:11 ns392434 sshd[8212]: Invalid user user1 from 106.13.184.139 port 47376
Jul 10 05:40:13 ns392434 sshd[8212]: Failed password for invalid user user1 from 106.13.184.139 port 47376 ssh2
Jul 10 06:06:49 ns392434 sshd[8674]: Invalid user tinglok from 106.13.184.139 port 54340
Jul 10 06:06:49 ns392434 sshd[8674]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.139
Jul 10 06:06:49 ns392434 sshd[8674]: Invalid user tinglok from 106.13.184.139 port 54340
Jul 10 06:06:51 ns392434 sshd[8674]: Failed password for invalid user tinglok from 106.13.184.139 port 54340 ssh2
Jul 10 06:10:43 ns392434 sshd[8809]: Invalid user Sebestyen from 106.13.184.139 port 42180

invalid user server from 106.13.184.139 port 38070 ssh2

 TCP (SYN) 106.13.184.139:54489 -> port 29720, len 44

 TCP (SYN) 106.13.184.139:50520 -> port 18410, len 44

May  2 05:26:56 ns382633 sshd\[1586\]: Invalid user ftpuser1 from 106.13.184.139 port 48374
May  2 05:26:56 ns382633 sshd\[1586\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.139
May  2 05:26:59 ns382633 sshd\[1586\]: Failed password for invalid user ftpuser1 from 106.13.184.139 port 48374 ssh2
May  2 05:52:35 ns382633 sshd\[6575\]: Invalid user lucas from 106.13.184.139 port 37216
May  2 05:52:35 ns382633 sshd\[6575\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.139

failed root login

SSH brute-force attempt

Apr 10 14:47:26 *** sshd[16399]: Invalid user deploy from 106.13.184.139

Apr  5 23:19:21 pornomens sshd\[7771\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.139  user=root
Apr  5 23:19:24 pornomens sshd\[7771\]: Failed password for root from 106.13.184.139 port 48090 ssh2
Apr  5 23:38:55 pornomens sshd\[7913\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.139  user=root
...

5x Failed Password

Oct 11 22:38:09 onepixel sshd[2304483]: Invalid user richter from 106.13.184.234 port 40436
Oct 11 22:38:09 onepixel sshd[2304483]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.234 
Oct 11 22:38:09 onepixel sshd[2304483]: Invalid user richter from 106.13.184.234 port 40436
Oct 11 22:38:11 onepixel sshd[2304483]: Failed password for invalid user richter from 106.13.184.234 port 40436 ssh2
Oct 11 22:40:09 onepixel sshd[2305047]: Invalid user amie from 106.13.184.234 port 44146

(sshd) Failed SSH login from 106.13.184.234 (CN/China/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Oct 11 06:48:56 server sshd[8798]: Invalid user tests from 106.13.184.234 port 52996
Oct 11 06:48:59 server sshd[8798]: Failed password for invalid user tests from 106.13.184.234 port 52996 ssh2
Oct 11 06:58:58 server sshd[11104]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.234  user=root
Oct 11 06:59:00 server sshd[11104]: Failed password for root from 106.13.184.234 port 56430 ssh2
Oct 11 07:02:13 server sshd[12151]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.234  user=root

2020-10-10 22:55:34.462681-0500  localhost sshd[81559]: Failed password for root from 106.13.184.234 port 38296 ssh2

2020-10-11T03:04:47.504444paragon sshd[846103]: Failed password for root from 106.13.184.234 port 45604 ssh2
2020-10-11T03:07:45.621117paragon sshd[846200]: Invalid user sqlsync from 106.13.184.234 port 33542
2020-10-11T03:07:45.625118paragon sshd[846200]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.234
2020-10-11T03:07:45.621117paragon sshd[846200]: Invalid user sqlsync from 106.13.184.234 port 33542
2020-10-11T03:07:47.673777paragon sshd[846200]: Failed password for invalid user sqlsync from 106.13.184.234 port 33542 ssh2
...

2020-10-10T03:36:50.223107linuxbox-skyline sshd[13291]: Invalid user web83 from 106.13.184.234 port 52660
...

SSH login attempts.

DATE:2020-09-30 00:11:26, IP:106.13.184.234, PORT:ssh SSH brute force auth (docker-dc)

Sep 28 19:06:00 php1 sshd\[3681\]: Invalid user nagios from 106.13.184.234
Sep 28 19:06:00 php1 sshd\[3681\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.234
Sep 28 19:06:02 php1 sshd\[3681\]: Failed password for invalid user nagios from 106.13.184.234 port 44850 ssh2
Sep 28 19:10:14 php1 sshd\[4332\]: Invalid user bill from 106.13.184.234
Sep 28 19:10:14 php1 sshd\[4332\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.234

Sep 28 19:06:00 php1 sshd\[3681\]: Invalid user nagios from 106.13.184.234
Sep 28 19:06:00 php1 sshd\[3681\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.234
Sep 28 19:06:02 php1 sshd\[3681\]: Failed password for invalid user nagios from 106.13.184.234 port 44850 ssh2
Sep 28 19:10:14 php1 sshd\[4332\]: Invalid user bill from 106.13.184.234
Sep 28 19:10:14 php1 sshd\[4332\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.234

SSH Invalid Login

Invalid user u1 from 106.13.184.234 port 39974

5x Failed Password

$f2bV_matches

Aug 28 07:47:22 server sshd[11400]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.174
Aug 28 07:47:24 server sshd[11400]: Failed password for invalid user tyr from 106.13.184.174 port 40960 ssh2
Aug 28 08:10:16 server sshd[13092]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.174  user=root
Aug 28 08:10:18 server sshd[13092]: Failed password for invalid user root from 106.13.184.174 port 33332 ssh2

Sep 22 21:24:10 ift sshd\[48352\]: Failed password for root from 106.13.184.174 port 58444 ssh2Sep 22 21:27:51 ift sshd\[48857\]: Invalid user user from 106.13.184.174Sep 22 21:27:53 ift sshd\[48857\]: Failed password for invalid user user from 106.13.184.174 port 33576 ssh2Sep 22 21:31:33 ift sshd\[49788\]: Invalid user tmax from 106.13.184.174Sep 22 21:31:35 ift sshd\[49788\]: Failed password for invalid user tmax from 106.13.184.174 port 36946 ssh2
...

2020-07-30T04:58:22.6754931495-001 sshd[46680]: Invalid user tom from 211.170.61.184 port 9126
2020-07-30T04:58:24.8974251495-001 sshd[46680]: Failed password for invalid user tom from 211.170.61.184 port 9126 ssh2
2020-07-30T05:02:37.5290831495-001 sshd[46914]: Invalid user python from 211.170.61.184 port 43374
2020-07-30T05:02:37.5322341495-001 sshd[46914]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=211.170.61.184
2020-07-30T05:02:37.5290831495-001 sshd[46914]: Invalid user python from 211.170.61.184 port 43374
2020-07-30T05:02:39.7562381495-001 sshd[46914]: Failed password for invalid user python from 211.170.61.184 port 43374 ssh2
...

ET DROP Dshield Block Listed Source group 1 - port: 6968 proto: tcp cat: Misc Attackbytes: 60

Port scan denied

invalid login attempt (root3)

Massive hacking attempts.

Invalid user jysun from 187.235.8.101 port 51456

Automatic report - Port Scan Attack

Auto Fail2Ban report, multiple SSH login attempts.

SSH Brute Force

Jul 30 05:49:54 server postfix/smtpd[27896]: NOQUEUE: reject: RCPT from unknown[45.168.175.33]: 554 5.7.1 Service unavailable; Client host [45.168.175.33] blocked using zen.spamhaus.org; https://www.spamhaus.org/query/ip/45.168.175.33 / https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=<[45.168.175.33]>

firewall-block, port(s): 445/tcp

Jul 30 11:04:17 web-main sshd[747075]: Invalid user ovirtagent from 89.26.250.41 port 56180
Jul 30 11:04:19 web-main sshd[747075]: Failed password for invalid user ovirtagent from 89.26.250.41 port 56180 ssh2
Jul 30 11:15:02 web-main sshd[747118]: Invalid user pranava from 89.26.250.41 port 44254

Jul 30 08:48:16 rocket sshd[23305]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=170.239.85.39
Jul 30 08:48:18 rocket sshd[23305]: Failed password for invalid user liushuzhi from 170.239.85.39 port 40746 ssh2
...

SIPVicious Scanner Detection

Jul 30 11:21:39 ip106 sshd[12077]: Failed password for root from 222.186.173.226 port 52913 ssh2
Jul 30 11:21:45 ip106 sshd[12077]: Failed password for root from 222.186.173.226 port 52913 ssh2
...