May 31 06:13:25 *** sshd[13640]: Invalid user rig from 157.230.208.92

May 26 09:26:34 vps687878 sshd\[18028\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92  user=root
May 26 09:26:36 vps687878 sshd\[18028\]: Failed password for root from 157.230.208.92 port 34326 ssh2
May 26 09:29:34 vps687878 sshd\[18218\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92  user=root
May 26 09:29:36 vps687878 sshd\[18218\]: Failed password for root from 157.230.208.92 port 55636 ssh2
May 26 09:32:28 vps687878 sshd\[18635\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92  user=root
...

Invalid user gzg from 157.230.208.92 port 48372

Bruteforce detected by fail2ban

Apr 20 06:58:56 server sshd[42234]: Failed password for root from 157.230.208.92 port 53212 ssh2
Apr 20 07:03:08 server sshd[43458]: Failed password for invalid user si from 157.230.208.92 port 43008 ssh2
Apr 20 07:07:18 server sshd[44511]: Failed password for invalid user qc from 157.230.208.92 port 32802 ssh2

SSH Invalid Login

<6 unauthorized SSH connections

Apr  6 12:40:58 markkoudstaal sshd[4257]: Failed password for root from 157.230.208.92 port 53798 ssh2
Apr  6 12:44:46 markkoudstaal sshd[4809]: Failed password for root from 157.230.208.92 port 37620 ssh2

Invalid user uct from 157.230.208.92 port 40326

Apr  1 22:42:39 legacy sshd[4658]: Failed password for root from 157.230.208.92 port 48082 ssh2
Apr  1 22:46:10 legacy sshd[4730]: Failed password for root from 157.230.208.92 port 60048 ssh2
Apr  1 22:49:54 legacy sshd[4789]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92
...

2020-03-31T14:57:59.590127dmca.cloudsearch.cf sshd[16909]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92  user=root
2020-03-31T14:58:01.918078dmca.cloudsearch.cf sshd[16909]: Failed password for root from 157.230.208.92 port 40944 ssh2
2020-03-31T15:01:50.260876dmca.cloudsearch.cf sshd[17236]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92  user=root
2020-03-31T15:01:52.634161dmca.cloudsearch.cf sshd[17236]: Failed password for root from 157.230.208.92 port 52536 ssh2
2020-03-31T15:05:38.040317dmca.cloudsearch.cf sshd[17507]: Invalid user user from 157.230.208.92 port 35926
2020-03-31T15:05:38.045818dmca.cloudsearch.cf sshd[17507]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92
2020-03-31T15:05:38.040317dmca.cloudsearch.cf sshd[17507]: Invalid user user from 157.230.208.92 port 35926
2020-03-31T15:05:40.384050dmca.cloud
...

Mar 13 15:00:05 marvibiene sshd[36307]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92  user=root
Mar 13 15:00:07 marvibiene sshd[36307]: Failed password for root from 157.230.208.92 port 47398 ssh2
Mar 13 15:01:51 marvibiene sshd[36329]: Invalid user oraprod from 157.230.208.92 port 49076
...

Feb 13 17:40:21 dedicated sshd[10306]: Invalid user paula from 157.230.208.92 port 45374

Feb 11 09:30:50 work-partkepr sshd\[5089\]: Invalid user dfq from 157.230.208.92 port 52354
Feb 11 09:30:50 work-partkepr sshd\[5089\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92
...

Feb  7 18:27:19 jane sshd[6349]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92 
Feb  7 18:27:21 jane sshd[6349]: Failed password for invalid user dri from 157.230.208.92 port 44764 ssh2
...

Unauthorized connection attempt detected from IP address 157.230.208.92 to port 2220 [J]

Unauthorized connection attempt detected from IP address 157.230.208.92 to port 2220 [J]

Invalid user tom from 157.230.208.92

SSH Brute Force

$f2bV_matches

$f2bV_matches

Dec 20 06:36:04 tdfoods sshd\[19746\]: Invalid user admin from 157.230.208.92
Dec 20 06:36:04 tdfoods sshd\[19746\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92
Dec 20 06:36:05 tdfoods sshd\[19746\]: Failed password for invalid user admin from 157.230.208.92 port 43462 ssh2
Dec 20 06:41:42 tdfoods sshd\[20312\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92  user=root
Dec 20 06:41:44 tdfoods sshd\[20312\]: Failed password for root from 157.230.208.92 port 51560 ssh2

Dec 15 23:30:00 webhost01 sshd[31404]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92
Dec 15 23:30:01 webhost01 sshd[31404]: Failed password for invalid user asd123ASD from 157.230.208.92 port 34578 ssh2
...

Dec 14 18:02:57 eventyay sshd[9004]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92
Dec 14 18:02:59 eventyay sshd[9004]: Failed password for invalid user test from 157.230.208.92 port 45822 ssh2
Dec 14 18:08:32 eventyay sshd[9205]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92
...

Dec  9 01:32:29 linuxvps sshd\[3001\]: Invalid user rong\&hui\$zbzx123 from 157.230.208.92
Dec  9 01:32:29 linuxvps sshd\[3001\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92
Dec  9 01:32:31 linuxvps sshd\[3001\]: Failed password for invalid user rong\&hui\$zbzx123 from 157.230.208.92 port 37628 ssh2
Dec  9 01:38:04 linuxvps sshd\[6733\]: Invalid user admin1111 from 157.230.208.92
Dec  9 01:38:04 linuxvps sshd\[6733\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92

2019-12-05T11:53:57.405815abusebot-7.cloudsearch.cf sshd\[23673\]: Invalid user ident from 157.230.208.92 port 58432

SSH bruteforce

Dec  1 03:38:46 firewall sshd[16305]: Invalid user nanami from 157.230.208.92
Dec  1 03:38:48 firewall sshd[16305]: Failed password for invalid user nanami from 157.230.208.92 port 49974 ssh2
Dec  1 03:41:29 firewall sshd[16384]: Invalid user Lauri from 157.230.208.92
...

pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92  user=root
Failed password for root from 157.230.208.92 port 35934 ssh2
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92  user=root
Failed password for root from 157.230.208.92 port 43112 ssh2
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92  user=news

Nov 29 07:28:56 heissa sshd\[2606\]: Invalid user mp3 from 157.230.208.92 port 57016
Nov 29 07:28:56 heissa sshd\[2606\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92
Nov 29 07:28:58 heissa sshd\[2606\]: Failed password for invalid user mp3 from 157.230.208.92 port 57016 ssh2
Nov 29 07:31:42 heissa sshd\[3049\]: Invalid user root1 from 157.230.208.92 port 36426
Nov 29 07:31:42 heissa sshd\[3049\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.208.92

DigitalOcean BotNet attack - 10s of requests to non-existent pages - :443/app-ads.txt - typically bursts of 8 requests per second - undefined, XSS attacks
node-superagent/4.1.0

DigitalOcean BotNet attack - 10s of requests to non-existent pages - :443/app-ads.txt - typically bursts of 8 requests per second - undefined, XSS attacks
node-superagent/4.1.0

Digital Ocean BotNet attack - 10s of requests to none existent pages - :443/app-ads.txt - typically bursts of 8 requests per second - undefined, XSS attacks
node-superagent/4.1.0

B: /wp-login.php attack

Sep 16 19:28:53 localhost sshd\[17619\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.83.41.120  user=root
Sep 16 19:28:55 localhost sshd\[17619\]: Failed password for root from 51.83.41.120 port 37038 ssh2
Sep 16 19:32:26 localhost sshd\[17835\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.83.41.120  user=root
Sep 16 19:32:29 localhost sshd\[17835\]: Failed password for root from 51.83.41.120 port 47568 ssh2
Sep 16 19:36:02 localhost sshd\[18103\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.83.41.120  user=root
...

Found on Block CINS-badguys  / proto=6  .  srcport=51040  .  dstport=445  .     (1104)

52.50.187.101 - - [16/Sep/2020:19:56:39 +0100] "POST /wp-login.php HTTP/1.1" 200 1996 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
52.50.187.101 - - [16/Sep/2020:19:56:39 +0100] "POST /wp-login.php HTTP/1.1" 200 2000 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
52.50.187.101 - - [16/Sep/2020:19:56:39 +0100] "POST /xmlrpc.php HTTP/1.1" 403 219 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
...

Sep 17 01:30:09 OPSO sshd\[1269\]: Invalid user phil from 66.98.116.207 port 39732
Sep 17 01:30:09 OPSO sshd\[1269\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=66.98.116.207
Sep 17 01:30:12 OPSO sshd\[1269\]: Failed password for invalid user phil from 66.98.116.207 port 39732 ssh2
Sep 17 01:38:27 OPSO sshd\[2878\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=66.98.116.207  user=root
Sep 17 01:38:29 OPSO sshd\[2878\]: Failed password for root from 66.98.116.207 port 52514 ssh2

Sep 16 23:47:27 rush sshd[9526]: Failed password for root from 159.89.163.226 port 47418 ssh2
Sep 16 23:51:41 rush sshd[9631]: Failed password for root from 159.89.163.226 port 59608 ssh2
...

[2020-09-16 17:11:19] NOTICE[1239] chan_sip.c: Registration from '"138"' failed for '195.206.107.154:6085' - Wrong password
[2020-09-16 17:11:19] SECURITY[1264] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-09-16T17:11:19.507-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="138",SessionID="0x7f4d480d6c18",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/195.206.107.154/6085",Challenge="09451f9c",ReceivedChallenge="09451f9c",ReceivedHash="eb89dedf189c146f799bff821edc1d8d"
[2020-09-16 17:16:03] NOTICE[1239] chan_sip.c: Registration from '"139"' failed for '195.206.107.154:15253' - Wrong password
[2020-09-16 17:16:03] SECURITY[1264] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-09-16T17:16:03.338-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="139",SessionID="0x7f4d480d6c18",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/195
...

Brute forcing email accounts

Banned for a week because repeated abuses, for example SSH, but not only

Sep 16 23:54:48 email sshd\[18444\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.227.62.103  user=root
Sep 16 23:54:50 email sshd\[18444\]: Failed password for root from 165.227.62.103 port 47056 ssh2
Sep 16 23:59:04 email sshd\[19213\]: Invalid user nouman from 165.227.62.103
Sep 16 23:59:04 email sshd\[19213\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.227.62.103
Sep 16 23:59:06 email sshd\[19213\]: Failed password for invalid user nouman from 165.227.62.103 port 58350 ssh2
...

Unauthorised access (Sep 16) SRC=117.239.4.147 LEN=52 TTL=108 ID=8031 DF TCP DPT=445 WINDOW=8192 SYN

Fail2Ban Ban Triggered

2020-09-16T18:59:06.021382centos sshd[5291]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=164.132.46.14
2020-09-16T18:59:06.015116centos sshd[5291]: Invalid user dax from 164.132.46.14 port 35154
2020-09-16T18:59:08.014049centos sshd[5291]: Failed password for invalid user dax from 164.132.46.14 port 35154 ssh2
...

2020-09-17T01:35:19.352936cyberdyne sshd[1281373]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.91.38.31  user=root
2020-09-17T01:35:21.298044cyberdyne sshd[1281373]: Failed password for root from 36.91.38.31 port 40650 ssh2
2020-09-17T01:39:42.800230cyberdyne sshd[1281520]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.91.38.31  user=root
2020-09-17T01:39:44.850747cyberdyne sshd[1281520]: Failed password for root from 36.91.38.31 port 40486 ssh2
...

Sep 17 01:40:28 vm1 sshd[26275]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.65.8.65
Sep 17 01:40:29 vm1 sshd[26275]: Failed password for invalid user git from 159.65.8.65 port 45286 ssh2
...

176.235.216.155 - - [16/Sep/2020:20:37:52 +0200] "GET /wp-login.php HTTP/1.1" 200 8796 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
176.235.216.155 - - [16/Sep/2020:20:37:53 +0200] "POST /wp-login.php HTTP/1.1" 200 9047 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
176.235.216.155 - - [16/Sep/2020:20:37:54 +0200] "POST /xmlrpc.php HTTP/1.1" 200 427 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"