Mar 17 03:50:56 ns3042688 sshd\[20609\]: Invalid user ccc from 106.13.239.128
Mar 17 03:50:56 ns3042688 sshd\[20609\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.128 
Mar 17 03:50:58 ns3042688 sshd\[20609\]: Failed password for invalid user ccc from 106.13.239.128 port 38376 ssh2
Mar 17 03:58:11 ns3042688 sshd\[21890\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.128  user=root
Mar 17 03:58:13 ns3042688 sshd\[21890\]: Failed password for root from 106.13.239.128 port 44890 ssh2
...

suspicious action Wed, 11 Mar 2020 16:17:05 -0300

Unauthorized connection attempt detected from IP address 106.13.239.128 to port 2220 [J]

Jan 11 08:09:05 pornomens sshd\[12355\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.128  user=root
Jan 11 08:09:06 pornomens sshd\[12355\]: Failed password for root from 106.13.239.128 port 51488 ssh2
Jan 11 08:11:49 pornomens sshd\[12373\]: Invalid user lab from 106.13.239.128 port 39302
Jan 11 08:11:49 pornomens sshd\[12373\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.128
...

Dec 28 22:32:19 game-panel sshd[1478]: Failed password for root from 106.13.239.128 port 34964 ssh2
Dec 28 22:34:38 game-panel sshd[1610]: Failed password for root from 106.13.239.128 port 55736 ssh2
Dec 28 22:36:56 game-panel sshd[1721]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.128

Dec 10 14:03:21 webhost01 sshd[29707]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.128
Dec 10 14:03:23 webhost01 sshd[29707]: Failed password for invalid user furuheim from 106.13.239.128 port 48626 ssh2
...

Lines containing failures of 106.13.239.128
Nov 27 10:11:42 dns01 sshd[26964]: Invalid user mdcho from 106.13.239.128 port 39904
Nov 27 10:11:42 dns01 sshd[26964]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.128
Nov 27 10:11:44 dns01 sshd[26964]: Failed password for invalid user mdcho from 106.13.239.128 port 39904 ssh2
Nov 27 10:11:45 dns01 sshd[26964]: Received disconnect from 106.13.239.128 port 39904:11: Bye Bye [preauth]
Nov 27 10:11:45 dns01 sshd[26964]: Disconnected from invalid user mdcho 106.13.239.128 port 39904 [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=106.13.239.128

Oct 11 22:23:31 ns381471 sshd[5093]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.120
Oct 11 22:23:33 ns381471 sshd[5093]: Failed password for invalid user takuya from 106.13.239.120 port 58732 ssh2

SSH Brute Force (V)

(sshd) Failed SSH login from 106.13.239.120 (CN/China/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Oct 11 00:44:01 server4 sshd[14793]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.120  user=root
Oct 11 00:44:03 server4 sshd[14793]: Failed password for root from 106.13.239.120 port 39104 ssh2
Oct 11 00:50:06 server4 sshd[18423]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.120  user=root
Oct 11 00:50:09 server4 sshd[18423]: Failed password for root from 106.13.239.120 port 39770 ssh2
Oct 11 00:51:37 server4 sshd[19429]: Invalid user roman from 106.13.239.120

2020-10-10T23:51:36.566888ns386461 sshd\[1724\]: Invalid user service from 106.13.239.120 port 48804
2020-10-10T23:51:36.572959ns386461 sshd\[1724\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.120
2020-10-10T23:51:38.038621ns386461 sshd\[1724\]: Failed password for invalid user service from 106.13.239.120 port 48804 ssh2
2020-10-11T00:00:00.865224ns386461 sshd\[9393\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.120  user=root
2020-10-11T00:00:02.521938ns386461 sshd\[9393\]: Failed password for root from 106.13.239.120 port 50370 ssh2
...

$f2bV_matches

(sshd) Failed SSH login from 106.13.239.120 (CN/China/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Sep 19 00:27:53 server sshd[13781]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.120  user=root
Sep 19 00:27:55 server sshd[13781]: Failed password for root from 106.13.239.120 port 42976 ssh2
Sep 19 00:34:20 server sshd[15481]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.120  user=root
Sep 19 00:34:22 server sshd[15481]: Failed password for root from 106.13.239.120 port 45160 ssh2
Sep 19 00:36:34 server sshd[16119]: Invalid user admin from 106.13.239.120 port 42274

2020-09-18T20:23:38.087715server.espacesoutien.com sshd[18593]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.120  user=root
2020-09-18T20:23:40.243699server.espacesoutien.com sshd[18593]: Failed password for root from 106.13.239.120 port 43480 ssh2
2020-09-18T20:25:43.550146server.espacesoutien.com sshd[19122]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.120  user=root
2020-09-18T20:25:45.867050server.espacesoutien.com sshd[19122]: Failed password for root from 106.13.239.120 port 43250 ssh2
...

Aug 24 21:59:38 game-panel sshd[13821]: Failed password for root from 106.13.239.120 port 57046 ssh2
Aug 24 22:03:07 game-panel sshd[14007]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.120
Aug 24 22:03:10 game-panel sshd[14007]: Failed password for invalid user gaa from 106.13.239.120 port 48870 ssh2

Aug 23 19:46:28 roki sshd[24476]: Invalid user ehsan from 106.13.239.120
Aug 23 19:46:28 roki sshd[24476]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.120
Aug 23 19:46:30 roki sshd[24476]: Failed password for invalid user ehsan from 106.13.239.120 port 37422 ssh2
Aug 23 19:49:27 roki sshd[24676]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.120  user=root
Aug 23 19:49:29 roki sshd[24676]: Failed password for root from 106.13.239.120 port 33954 ssh2
...

Aug  2 22:24:48 mail sshd[17090]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.120  user=root
Aug  2 22:24:50 mail sshd[17090]: Failed password for root from 106.13.239.120 port 43220 ssh2
...

Jul 23 06:06:58 * sshd[32637]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.120
Jul 23 06:07:01 * sshd[32637]: Failed password for invalid user ivan from 106.13.239.120 port 43516 ssh2

2020-07-18T06:07:14+0200 Failed SSH Authentication/Brute Force Attack. (Server 5)

Jun 25 22:37:22 jane sshd[28510]: Failed password for root from 106.13.239.120 port 59580 ssh2
...

May 30 11:18:56 abendstille sshd\[3266\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.120  user=root
May 30 11:18:58 abendstille sshd\[3266\]: Failed password for root from 106.13.239.120 port 46762 ssh2
May 30 11:23:16 abendstille sshd\[7634\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.120  user=root
May 30 11:23:18 abendstille sshd\[7634\]: Failed password for root from 106.13.239.120 port 38158 ssh2
May 30 11:27:33 abendstille sshd\[12175\]: Invalid user mcqueen from 106.13.239.120
May 30 11:27:33 abendstille sshd\[12175\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.239.120
...

$f2bV_matches

Failed password for invalid user from 87.187.104.177 port 54530 ssh2

WordPress wp-login brute force :: 186.139.123.33 0.100 - [23/Sep/2020:20:31:33  0000] [censored_1] "POST /wp-login.php HTTP/1.1" 200 2414 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0" "HTTP/1.1"

2020-09-24T01:38:53.145683dreamphreak.com sshd[404207]: Invalid user azure from 51.145.5.229 port 8294
2020-09-24T01:38:55.169899dreamphreak.com sshd[404207]: Failed password for invalid user azure from 51.145.5.229 port 8294 ssh2
...

Sep 24 08:23:38 rotator sshd\[10497\]: Invalid user vlad from 164.132.98.75Sep 24 08:23:40 rotator sshd\[10497\]: Failed password for invalid user vlad from 164.132.98.75 port 55006 ssh2Sep 24 08:27:29 rotator sshd\[11288\]: Invalid user cc from 164.132.98.75Sep 24 08:27:31 rotator sshd\[11288\]: Failed password for invalid user cc from 164.132.98.75 port 60287 ssh2Sep 24 08:31:27 rotator sshd\[12078\]: Invalid user cfabllc from 164.132.98.75Sep 24 08:31:29 rotator sshd\[12078\]: Failed password for invalid user cfabllc from 164.132.98.75 port 37326 ssh2
...

Invalid user git from 193.148.70.216 port 57624

Rude login attack (2 tries in 1d)

(eximsyntax) Exim syntax errors from 45.15.139.111 (ES/Spain/45.15.139.111-ip.goufone.cat): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2020-09-23 20:33:56 SMTP call from [45.15.139.111] dropped: too many syntax or protocol errors (last command was "?\034?\032?\027?\031?\034?\033?\030?\032?\026?\016?\r?\v?\f?	?")

2020-09-24T06:16:44.016004abusebot-2.cloudsearch.cf sshd[12245]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.133  user=root
2020-09-24T06:16:46.114804abusebot-2.cloudsearch.cf sshd[12245]: Failed password for root from 218.92.0.133 port 6079 ssh2
2020-09-24T06:16:49.686149abusebot-2.cloudsearch.cf sshd[12245]: Failed password for root from 218.92.0.133 port 6079 ssh2
2020-09-24T06:16:44.016004abusebot-2.cloudsearch.cf sshd[12245]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.133  user=root
2020-09-24T06:16:46.114804abusebot-2.cloudsearch.cf sshd[12245]: Failed password for root from 218.92.0.133 port 6079 ssh2
2020-09-24T06:16:49.686149abusebot-2.cloudsearch.cf sshd[12245]: Failed password for root from 218.92.0.133 port 6079 ssh2
2020-09-24T06:16:44.016004abusebot-2.cloudsearch.cf sshd[12245]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=2
...

bruteforce detected

Invalid user edi from 154.221.18.237 port 54810

20 attempts against mh-ssh on cloud

Invalid user rtm from 35.239.60.149 port 55580

Sep 24 07:26:56 ns308116 sshd[14564]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.217  user=root
Sep 24 07:26:58 ns308116 sshd[14564]: Failed password for root from 222.186.175.217 port 35038 ssh2
Sep 24 07:27:01 ns308116 sshd[14564]: Failed password for root from 222.186.175.217 port 35038 ssh2
Sep 24 07:27:04 ns308116 sshd[14564]: Failed password for root from 222.186.175.217 port 35038 ssh2
Sep 24 07:27:08 ns308116 sshd[14564]: Failed password for root from 222.186.175.217 port 35038 ssh2
...

$f2bV_matches

port scan and connect, tcp 1433 (ms-sql-s)