Coordinated SSH brute-force attack from different IPs. pam_unix(sshd:auth):

2020-08-31 18:00:48,963 fail2ban.actions: WARNING [ssh] Ban 138.97.23.190

Invalid user pan from 138.97.23.190 port 52316

2020-08-20T01:27:55.070227hostname sshd[15309]: Failed password for invalid user ts from 138.97.23.190 port 39540 ssh2
...

2020-08-18T05:01:30.511619billing sshd[24790]: Invalid user ywq from 138.97.23.190 port 56240
2020-08-18T05:01:32.925134billing sshd[24790]: Failed password for invalid user ywq from 138.97.23.190 port 56240 ssh2
2020-08-18T05:08:55.039070billing sshd[8683]: Invalid user steam from 138.97.23.190 port 36908
...

Jul 13 11:59:30 cp sshd[20647]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.97.23.190

Invalid user system from 138.97.23.190 port 50614

May 30 10:50:36 server sshd[10446]: Failed password for root from 138.97.23.190 port 33214 ssh2
May 30 10:55:10 server sshd[10749]: Failed password for root from 138.97.23.190 port 39008 ssh2
...

2020-05-25T04:32:51.2667751495-001 sshd[20947]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=dynamic-138-97-23-190.camontelecom.net.br  user=root
2020-05-25T04:32:53.1019671495-001 sshd[20947]: Failed password for root from 138.97.23.190 port 58700 ssh2
2020-05-25T04:35:49.5880561495-001 sshd[21095]: Invalid user sole from 138.97.23.190 port 41348
2020-05-25T04:35:49.5958391495-001 sshd[21095]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=dynamic-138-97-23-190.camontelecom.net.br
2020-05-25T04:35:49.5880561495-001 sshd[21095]: Invalid user sole from 138.97.23.190 port 41348
2020-05-25T04:35:51.8678151495-001 sshd[21095]: Failed password for invalid user sole from 138.97.23.190 port 41348 ssh2
...

(sshd) Failed SSH login from 138.97.23.190 (BR/Brazil/dynamic-138-97-23-190.camontelecom.net.br): 5 in the last 3600 secs

fail2ban -- 138.97.23.190
...

Apr 30 13:10:08 game-panel sshd[21797]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.97.23.190
Apr 30 13:10:10 game-panel sshd[21797]: Failed password for invalid user wy from 138.97.23.190 port 44162 ssh2
Apr 30 13:15:19 game-panel sshd[21971]: Failed password for root from 138.97.23.190 port 57002 ssh2

2020-04-29T13:59:19.810118vps773228.ovh.net sshd[24609]: Failed password for invalid user molisoft from 138.97.23.190 port 40564 ssh2
2020-04-29T14:04:07.317604vps773228.ovh.net sshd[24683]: Invalid user poss from 138.97.23.190 port 51610
2020-04-29T14:04:07.329626vps773228.ovh.net sshd[24683]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=dynamic-138-97-23-190.camontelecom.net.br
2020-04-29T14:04:07.317604vps773228.ovh.net sshd[24683]: Invalid user poss from 138.97.23.190 port 51610
2020-04-29T14:04:08.774493vps773228.ovh.net sshd[24683]: Failed password for invalid user poss from 138.97.23.190 port 51610 ssh2
...

Apr 28 15:40:09 rotator sshd\[13587\]: Invalid user is from 138.97.23.190Apr 28 15:40:11 rotator sshd\[13587\]: Failed password for invalid user is from 138.97.23.190 port 54796 ssh2Apr 28 15:44:14 rotator sshd\[14250\]: Invalid user apex from 138.97.23.190Apr 28 15:44:17 rotator sshd\[14250\]: Failed password for invalid user apex from 138.97.23.190 port 54300 ssh2Apr 28 15:48:17 rotator sshd\[15035\]: Invalid user site1 from 138.97.23.190Apr 28 15:48:19 rotator sshd\[15035\]: Failed password for invalid user site1 from 138.97.23.190 port 53800 ssh2
...

Apr 20 12:45:03 vps46666688 sshd[20853]: Failed password for root from 138.97.23.190 port 57260 ssh2
Apr 20 12:54:55 vps46666688 sshd[21036]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.97.23.190
...

2020-04-17T10:54:00.291492shield sshd\[18403\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=dynamic-138-97-23-190.camontelecom.net.br  user=root
2020-04-17T10:54:01.947056shield sshd\[18403\]: Failed password for root from 138.97.23.190 port 44354 ssh2
2020-04-17T10:55:36.052282shield sshd\[18657\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=dynamic-138-97-23-190.camontelecom.net.br  user=root
2020-04-17T10:55:37.880144shield sshd\[18657\]: Failed password for root from 138.97.23.190 port 37970 ssh2
2020-04-17T10:57:14.298233shield sshd\[18905\]: Invalid user la from 138.97.23.190 port 59824

Apr  9 07:01:00 scw-6657dc sshd[12538]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.97.23.190
Apr  9 07:01:00 scw-6657dc sshd[12538]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.97.23.190
Apr  9 07:01:01 scw-6657dc sshd[12538]: Failed password for invalid user vsftpd from 138.97.23.190 port 55452 ssh2
...

Invalid user shiqimeng from 138.97.23.190 port 33116

Invalid user shiqimeng from 138.97.23.190 port 35310

$f2bV_matches | Triggered by Fail2Ban at Vostok web server

Jan 25 06:13:04 game-panel sshd[31495]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.97.23.190
Jan 25 06:13:06 game-panel sshd[31495]: Failed password for invalid user connect from 138.97.23.190 port 34446 ssh2
Jan 25 06:16:23 game-panel sshd[31609]: Failed password for root from 138.97.23.190 port 34754 ssh2

Invalid user og from 138.97.23.190 port 36778

2020-01-01T05:09:27.792762shield sshd\[19648\]: Invalid user skilina from 138.97.23.190 port 54112
2020-01-01T05:09:27.797048shield sshd\[19648\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=dynamic-138-97-23-190.camontelecom.net.br
2020-01-01T05:09:29.705956shield sshd\[19648\]: Failed password for invalid user skilina from 138.97.23.190 port 54112 ssh2
2020-01-01T05:13:07.647891shield sshd\[20898\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=dynamic-138-97-23-190.camontelecom.net.br  user=root
2020-01-01T05:13:10.423545shield sshd\[20898\]: Failed password for root from 138.97.23.190 port 54030 ssh2

2020-06-03T15:30:55.079307struts4.enskede.local sshd\[10571\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.97.239.9  user=root
2020-06-03T15:30:57.984504struts4.enskede.local sshd\[10571\]: Failed password for root from 138.97.239.9 port 57648 ssh2
2020-06-03T15:35:20.566661struts4.enskede.local sshd\[10606\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.97.239.9  user=root
2020-06-03T15:35:23.537446struts4.enskede.local sshd\[10606\]: Failed password for root from 138.97.239.9 port 60017 ssh2
2020-06-03T15:39:47.811111struts4.enskede.local sshd\[10617\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.97.239.9  user=root
...

May 29 07:02:35 OPSO sshd\[5528\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.97.239.9  user=root
May 29 07:02:37 OPSO sshd\[5528\]: Failed password for root from 138.97.239.9 port 43243 ssh2
May 29 07:07:14 OPSO sshd\[6477\]: Invalid user ff from 138.97.239.9 port 45946
May 29 07:07:14 OPSO sshd\[6477\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.97.239.9
May 29 07:07:16 OPSO sshd\[6477\]: Failed password for invalid user ff from 138.97.239.9 port 45946 ssh2

Automatic report - Port Scan Attack

proto=tcp  .  spt=57013  .  dpt=25  .     (listed on     Github Combined on 3 lists )     (446)

Aug  3 15:31:40 vps639187 sshd\[28053\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=179.216.176.168  user=root
Aug  3 15:31:42 vps639187 sshd\[28053\]: Failed password for root from 179.216.176.168 port 35219 ssh2
Aug  3 15:38:23 vps639187 sshd\[28109\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=179.216.176.168  user=root
...

2020-08-03T20:29:31.795901abusebot-8.cloudsearch.cf sshd[21274]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.226.67.78  user=root
2020-08-03T20:29:33.846915abusebot-8.cloudsearch.cf sshd[21274]: Failed password for root from 129.226.67.78 port 39298 ssh2
2020-08-03T20:32:16.843962abusebot-8.cloudsearch.cf sshd[21282]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.226.67.78  user=root
2020-08-03T20:32:18.880336abusebot-8.cloudsearch.cf sshd[21282]: Failed password for root from 129.226.67.78 port 57748 ssh2
2020-08-03T20:34:55.673664abusebot-8.cloudsearch.cf sshd[21286]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.226.67.78  user=root
2020-08-03T20:34:57.870252abusebot-8.cloudsearch.cf sshd[21286]: Failed password for root from 129.226.67.78 port 47974 ssh2
2020-08-03T20:37:36.423175abusebot-8.cloudsearch.cf sshd[21340]: pam_unix(sshd:auth): authe
...

$f2bV_matches

SSH invalid-user multiple login try

Port Scan detected!
...

Aug 3 22:34:20 *hidden* sshd[34077]: Failed password for *hidden* from 188.187.190.220 port 52182 ssh2 Aug 3 22:38:09 *hidden* sshd[34691]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.187.190.220 user=root Aug 3 22:38:11 *hidden* sshd[34691]: Failed password for *hidden* from 188.187.190.220 port 35978 ssh2

Brute force password guessing

(From eric@talkwithwebvisitor.com) Cool website!

My name’s Eric, and I just found your site - millnerchiro.com - while surfing the net. You showed up at the top of the search results, so I checked you out. Looks like what you’re doing is pretty cool.
 
But if you don’t mind me asking – after someone like me stumbles across millnerchiro.com, what usually happens?

Is your site generating leads for your business? 
 
I’m guessing some, but I also bet you’d like more… studies show that 7 out 10 who land on a site wind up leaving without a trace.

Not good.

Here’s a thought – what if there was an easy way for every visitor to “raise their hand” to get a phone call from you INSTANTLY… the second they hit your site and said, “call me now.”

You can –
  
Talk With Web Visitor is a software widget that’s works on your site, ready to capture any visitor’s Name, Email address and Phone Number.  It lets you know IMMEDIATELY – so that you can talk to that lead while they’re literally looking over your si

Automatic report - Banned IP Access

[ssh] SSH attack

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

Aug  3 22:35:28 pve1 sshd[25000]: Failed password for root from 43.239.221.60 port 39132 ssh2
...

2020-08-03T22:35:27.523420v22018076590370373 sshd[26651]: Failed password for root from 111.229.105.250 port 44912 ssh2
2020-08-03T22:36:40.092516v22018076590370373 sshd[19392]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.229.105.250  user=root
2020-08-03T22:36:42.037398v22018076590370373 sshd[19392]: Failed password for root from 111.229.105.250 port 56328 ssh2
2020-08-03T22:37:50.046660v22018076590370373 sshd[10586]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.229.105.250  user=root
2020-08-03T22:37:52.269345v22018076590370373 sshd[10586]: Failed password for root from 111.229.105.250 port 39510 ssh2
...

Aug  3 21:49:26 rocket sshd[31466]: Failed password for root from 188.170.13.225 port 60194 ssh2
Aug  3 21:53:15 rocket sshd[32171]: Failed password for root from 188.170.13.225 port 42630 ssh2
...

Automatic report - Port Scan Attack