Invalid user usuario from 175.24.81.169 port 46146

May 16 04:45:09 home sshd[27000]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.169
May 16 04:45:12 home sshd[27000]: Failed password for invalid user user1 from 175.24.81.169 port 55978 ssh2
May 16 04:48:02 home sshd[27428]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.169
...

May 10 07:57:24 PorscheCustomer sshd[1441]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.169
May 10 07:57:26 PorscheCustomer sshd[1441]: Failed password for invalid user vps from 175.24.81.169 port 44102 ssh2
May 10 08:01:55 PorscheCustomer sshd[1609]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.169
...

May  8 23:54:14 ws24vmsma01 sshd[214679]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.169
May  8 23:54:16 ws24vmsma01 sshd[214679]: Failed password for invalid user itadmin from 175.24.81.169 port 39478 ssh2
...

Invalid user tencent from 175.24.81.169 port 52808

Apr 11 06:54:38 server sshd[23789]: Failed password for invalid user cod4 from 175.24.81.169 port 53332 ssh2
Apr 11 06:57:43 server sshd[24359]: Failed password for invalid user rodd from 175.24.81.169 port 58624 ssh2
Apr 11 07:00:48 server sshd[24988]: Failed password for root from 175.24.81.169 port 35684 ssh2

k+ssh-bruteforce

SSH brute-force attempt

Oct  2 02:48:48 itv-usvr-01 sshd[13039]: Invalid user shiny from 175.24.81.207
Oct  2 02:48:48 itv-usvr-01 sshd[13039]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.207
Oct  2 02:48:48 itv-usvr-01 sshd[13039]: Invalid user shiny from 175.24.81.207
Oct  2 02:48:50 itv-usvr-01 sshd[13039]: Failed password for invalid user shiny from 175.24.81.207 port 50076 ssh2
Oct  2 02:53:59 itv-usvr-01 sshd[13229]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.207  user=root
Oct  2 02:54:00 itv-usvr-01 sshd[13229]: Failed password for root from 175.24.81.207 port 48102 ssh2

(sshd) Failed SSH login from 175.24.81.207 (CN/China/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Oct  1 06:53:59 server5 sshd[1900]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.207  user=root
Oct  1 06:54:01 server5 sshd[1900]: Failed password for root from 175.24.81.207 port 45276 ssh2
Oct  1 06:58:55 server5 sshd[4059]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.207  user=root
Oct  1 06:58:57 server5 sshd[4059]: Failed password for root from 175.24.81.207 port 33190 ssh2
Oct  1 07:03:07 server5 sshd[5935]: Invalid user tanya from 175.24.81.207

Oct  1 01:13:03 email sshd\[24987\]: Invalid user ting from 175.24.81.207
Oct  1 01:13:03 email sshd\[24987\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.207
Oct  1 01:13:04 email sshd\[24987\]: Failed password for invalid user ting from 175.24.81.207 port 33058 ssh2
Oct  1 01:17:53 email sshd\[25796\]: Invalid user interview from 175.24.81.207
Oct  1 01:17:53 email sshd\[25796\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.207
...

6379/tcp
[2020-08-30]1pkt

Invalid user sdbadmin from 175.24.81.207 port 45054

Aug 22 15:02:44 cho sshd[1359426]: Invalid user ong from 175.24.81.123 port 59702
Aug 22 15:02:44 cho sshd[1359426]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.123 
Aug 22 15:02:44 cho sshd[1359426]: Invalid user ong from 175.24.81.123 port 59702
Aug 22 15:02:45 cho sshd[1359426]: Failed password for invalid user ong from 175.24.81.123 port 59702 ssh2
Aug 22 15:06:50 cho sshd[1359616]: Invalid user server from 175.24.81.123 port 48292
...

Aug 20 22:15:07 IngegnereFirenze sshd[28308]: User root from 175.24.81.207 not allowed because not listed in AllowUsers
...

2020-08-18T22:40:40.359798mail.broermann.family sshd[9592]: Invalid user abhishek from 175.24.81.207 port 49668
2020-08-18T22:40:40.366362mail.broermann.family sshd[9592]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.207
2020-08-18T22:40:40.359798mail.broermann.family sshd[9592]: Invalid user abhishek from 175.24.81.207 port 49668
2020-08-18T22:40:42.488936mail.broermann.family sshd[9592]: Failed password for invalid user abhishek from 175.24.81.207 port 49668 ssh2
2020-08-18T22:46:44.163538mail.broermann.family sshd[9790]: Invalid user hua from 175.24.81.207 port 55488
...

Aug 15 04:19:37 serwer sshd\[19362\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.207  user=root
Aug 15 04:19:38 serwer sshd\[19362\]: Failed password for root from 175.24.81.207 port 40370 ssh2
Aug 15 04:23:07 serwer sshd\[21403\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.207  user=root
...

Aug 11 23:48:13 abendstille sshd\[20361\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.207  user=root
Aug 11 23:48:16 abendstille sshd\[20361\]: Failed password for root from 175.24.81.207 port 47012 ssh2
Aug 11 23:51:51 abendstille sshd\[23804\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.207  user=root
Aug 11 23:51:53 abendstille sshd\[23804\]: Failed password for root from 175.24.81.207 port 58568 ssh2
Aug 11 23:55:29 abendstille sshd\[27455\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.207  user=root
...

Aug 11 06:03:34 vps333114 sshd[2233]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.207  user=root
Aug 11 06:03:36 vps333114 sshd[2233]: Failed password for root from 175.24.81.207 port 38822 ssh2
...

Aug  8 18:01:58 ns3033917 sshd[20972]: Failed password for root from 175.24.81.123 port 38876 ssh2
Aug  8 18:03:40 ns3033917 sshd[20980]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.123  user=root
Aug  8 18:03:42 ns3033917 sshd[20980]: Failed password for root from 175.24.81.123 port 55536 ssh2
...

2020-08-06T00:15:22.706175+02:00  sshd[15474]: Failed password for root from 175.24.81.123 port 53654 ssh2

2020-07-10T12:28:50.057478abusebot-5.cloudsearch.cf sshd[3899]: Invalid user master from 175.24.81.207 port 54614
2020-07-10T12:28:50.063064abusebot-5.cloudsearch.cf sshd[3899]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.207
2020-07-10T12:28:50.057478abusebot-5.cloudsearch.cf sshd[3899]: Invalid user master from 175.24.81.207 port 54614
2020-07-10T12:28:51.579247abusebot-5.cloudsearch.cf sshd[3899]: Failed password for invalid user master from 175.24.81.207 port 54614 ssh2
2020-07-10T12:34:51.540884abusebot-5.cloudsearch.cf sshd[3970]: Invalid user silver from 175.24.81.207 port 51594
2020-07-10T12:34:51.546715abusebot-5.cloudsearch.cf sshd[3970]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.81.207
2020-07-10T12:34:51.540884abusebot-5.cloudsearch.cf sshd[3970]: Invalid user silver from 175.24.81.207 port 51594
2020-07-10T12:34:53.624542abusebot-5.cloudsearch.cf sshd[3970]: Failed pa
...

$f2bV_matches

[Wed Mar 18 11:40:02.820155 2020] [:error] [pid 7238:tid 139937936561920] [client 141.8.142.1:63313] [client 141.8.142.1] ModSecurity: Access denied with code 403 (phase 2). Pattern match "^[\\\\d.:]+$" at REQUEST_HEADERS:Host. [file "/etc/modsecurity/owasp-modsecurity-crs-3.2.0/rules/REQUEST-920-PROTOCOL-ENFORCEMENT.conf"] [line "696"] [id "920350"] [msg "Host header is a numeric IP address"] [data "103.27.207.197"] [severity "WARNING"] [ver "OWASP_CRS/3.2.0"] [tag "application-multi"] [tag "language-multi"] [tag "platform-multi"] [tag "attack-protocol"] [tag "OWASP_CRS"] [tag "OWASP_CRS/PROTOCOL_VIOLATION/IP_HOST"] [tag "WASCTC/WASC-21"] [tag "OWASP_TOP_10/A7"] [tag "PCI/6.5.10"] [hostname "103.27.207.197"] [uri "/"] [unique_id "XnGmImRgp26zVn0yQ0hLKQAAAN4"]
...

Mar 18 04:50:29 mail.srvfarm.net postfix/smtpd[1297327]: NOQUEUE: reject: RCPT from unknown[217.112.142.245]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 18 04:50:29 mail.srvfarm.net postfix/smtpd[1298082]: NOQUEUE: reject: RCPT from unknown[217.112.142.245]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 18 04:50:29 mail.srvfarm.net postfix/smtpd[1297244]: NOQUEUE: reject: RCPT from unknown[217.112.142.245]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 18 04:50:29 mail.srvfarm.net postfix/smtpd[1298081]: NOQUEUE: reject: RCPT from unknown[217.112.142.245]: 450 4.1.8 

03/17/2020-23:54:29.763293 185.176.27.114 Protocol: 6 ET DROP Dshield Block Listed Source group 1

Unauthorised access (Mar 18) SRC=61.253.138.10 LEN=40 TTL=52 ID=53557 TCP DPT=8080 WINDOW=9102 SYN 
Unauthorised access (Mar 18) SRC=61.253.138.10 LEN=40 TTL=52 ID=29387 TCP DPT=8080 WINDOW=9102 SYN 
Unauthorised access (Mar 16) SRC=61.253.138.10 LEN=40 PREC=0x20 TTL=52 ID=41603 TCP DPT=8080 WINDOW=9102 SYN

Mar 18 06:01:34 sd-53420 sshd\[17083\]: User root from 51.38.71.191 not allowed because none of user's groups are listed in AllowGroups
Mar 18 06:01:34 sd-53420 sshd\[17083\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.71.191  user=root
Mar 18 06:01:35 sd-53420 sshd\[17083\]: Failed password for invalid user root from 51.38.71.191 port 46984 ssh2
Mar 18 06:10:10 sd-53420 sshd\[20173\]: Invalid user robot from 51.38.71.191
Mar 18 06:10:10 sd-53420 sshd\[20173\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.71.191
...

Brute-force attempt banned

Mar 18 07:35:44 hosting sshd[25637]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.26.66.132  user=root
Mar 18 07:35:46 hosting sshd[25637]: Failed password for root from 118.26.66.132 port 47410 ssh2
Mar 18 07:54:40 hosting sshd[27328]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.26.66.132  user=root
Mar 18 07:54:42 hosting sshd[27328]: Failed password for root from 118.26.66.132 port 58920 ssh2
Mar 18 07:58:16 hosting sshd[27689]: Invalid user redadmin from 118.26.66.132 port 36032
...

(sshd) Failed SSH login from 193.142.146.179 (NL/Netherlands/-): 5 in the last 3600 secs

Mar 18 04:51:07 vps691689 sshd[14488]: Failed password for root from 112.215.113.11 port 42027 ssh2
Mar 18 04:53:43 vps691689 sshd[14566]: Failed password for root from 112.215.113.11 port 53047 ssh2
...

Mar 17 18:27:25 kapalua sshd\[1022\]: Invalid user elc_admin from 150.109.63.204
Mar 17 18:27:25 kapalua sshd\[1022\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=150.109.63.204
Mar 17 18:27:27 kapalua sshd\[1022\]: Failed password for invalid user elc_admin from 150.109.63.204 port 51784 ssh2
Mar 17 18:35:26 kapalua sshd\[1754\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=150.109.63.204  user=root
Mar 17 18:35:28 kapalua sshd\[1754\]: Failed password for root from 150.109.63.204 port 34442 ssh2

Mar 18 03:49:13 124388 sshd[25452]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.99.84.85
Mar 18 03:49:13 124388 sshd[25452]: Invalid user uftp from 139.99.84.85 port 47526
Mar 18 03:49:15 124388 sshd[25452]: Failed password for invalid user uftp from 139.99.84.85 port 47526 ssh2
Mar 18 03:53:43 124388 sshd[25499]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.99.84.85  user=root
Mar 18 03:53:45 124388 sshd[25499]: Failed password for root from 139.99.84.85 port 39240 ssh2

Brute-force attempt banned

TCP port 3389: Scan and connection

Mar 18 04:04:04 v22018086721571380 sshd[19594]: error: maximum authentication attempts exceeded for root from 222.186.173.154 port 10796 ssh2 [preauth]
Mar 18 06:20:59 v22018086721571380 sshd[15994]: error: maximum authentication attempts exceeded for root from 222.186.173.154 port 22604 ssh2 [preauth]

2020-03-18T03:51:12.277247shield sshd\[21742\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.24.153.214  user=root
2020-03-18T03:51:14.540928shield sshd\[21742\]: Failed password for root from 118.24.153.214 port 59802 ssh2
2020-03-18T03:52:39.235881shield sshd\[21957\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.24.153.214  user=root
2020-03-18T03:52:41.109575shield sshd\[21957\]: Failed password for root from 118.24.153.214 port 48342 ssh2
2020-03-18T03:54:07.588387shield sshd\[22186\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.24.153.214  user=root