\[Apr 12 06:54:45\] NOTICE\[2019\] chan_sip.c: Registration from '\' failed for '104.238.38.21:57622' - Wrong password
\[Apr 12 06:55:08\] NOTICE\[2019\] chan_sip.c: Registration from '\' failed for '104.238.38.21:58616' - Wrong password
\[Apr 12 06:55:09\] NOTICE\[2019\] chan_sip.c: Registration from '\' failed for '104.238.38.21:59352' - Wrong password
\[Apr 12 06:55:33\] NOTICE\[2019\] chan_sip.c: Registration from '\' failed for '104.238.38.21:61749' - Wrong password
\[Apr 12 06:56:13\] NOTICE\[2019\] chan_sip.c: Registration from '\' failed for '104.238.38.21:59957' - Wrong password
\[Apr 12 06:56:24\] NOTICE\[2019\] chan_sip.c: Registration from '\' failed for '104.238.38.21:52478' - Wrong password
\[Apr 12 06:56:46\] NOTICE\[2019\] chan_sip.c: Registration from '\' failed for
...

[2020-07-19 13:40:45] NOTICE[1277][C-000011a2] chan_sip.c: Call from '' (104.238.38.156:56067) to extension '0011972595725668' rejected because extension not found in context 'public'.
[2020-07-19 13:40:45] SECURITY[1295] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-07-19T13:40:45.105-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="0011972595725668",SessionID="0x7f17541b8598",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/104.238.38.156/56067",ACLName="no_extension_match"
[2020-07-19 13:45:37] NOTICE[1277][C-000011a8] chan_sip.c: Call from '' (104.238.38.156:59287) to extension '8011972595725668' rejected because extension not found in context 'public'.
[2020-07-19 13:45:37] SECURITY[1295] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-07-19T13:45:37.485-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="8011972595725668",SessionID="0x7f1754378da8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IP
...

[2020-07-19 08:45:52] NOTICE[1277][C-00000fd4] chan_sip.c: Call from '' (104.238.38.156:57700) to extension '258011972595725668' rejected because extension not found in context 'public'.
[2020-07-19 08:45:52] SECURITY[1295] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-07-19T08:45:52.992-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="258011972595725668",SessionID="0x7f17541b8598",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/104.238.38.156/57700",ACLName="no_extension_match"
[2020-07-19 08:50:44] NOTICE[1277][C-00000fdc] chan_sip.c: Call from '' (104.238.38.156:53512) to extension '852011972595725668' rejected because extension not found in context 'public'.
[2020-07-19 08:50:44] SECURITY[1295] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-07-19T08:50:44.950-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="852011972595725668",SessionID="0x7f17541b8598",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAdd
...

[2020-07-17 00:09:00] NOTICE[1277][C-00000437] chan_sip.c: Call from '' (104.238.38.156:61945) to extension '11111011972595725668' rejected because extension not found in context 'public'.
[2020-07-17 00:09:00] SECURITY[1295] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-07-17T00:09:00.817-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="11111011972595725668",SessionID="0x7f1754128568",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/104.238.38.156/61945",ACLName="no_extension_match"
[2020-07-17 00:13:08] NOTICE[1277][C-00000438] chan_sip.c: Call from '' (104.238.38.156:64855) to extension '.+011972595725668' rejected because extension not found in context 'public'.
[2020-07-17 00:13:08] SECURITY[1295] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-07-17T00:13:08.122-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID=".+011972595725668",SessionID="0x7f1754128568",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteA
...

[2020-07-16 10:47:46] NOTICE[1277][C-00000235] chan_sip.c: Call from '' (104.238.38.156:49513) to extension '0000000000000011972595725668' rejected because extension not found in context 'public'.
[2020-07-16 10:47:46] SECURITY[1295] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-07-16T10:47:46.270-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="0000000000000011972595725668",SessionID="0x7f17540de808",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/104.238.38.156/49513",ACLName="no_extension_match"
[2020-07-16 10:52:34] NOTICE[1277][C-00000237] chan_sip.c: Call from '' (104.238.38.156:58695) to extension '00000000000000011972595725668' rejected because extension not found in context 'public'.
[2020-07-16 10:52:34] SECURITY[1295] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-07-16T10:52:34.428-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="00000000000000011972595725668",SessionID="0x7f17540de808",LocalAddre
...

Feb 15 00:38:30 markkoudstaal sshd[30549]: Failed password for root from 104.238.38.95 port 45086 ssh2
Feb 15 00:42:29 markkoudstaal sshd[31226]: Failed password for messagebus from 104.238.38.95 port 53610 ssh2

[2020-02-02 10:07:17] NOTICE[1148] chan_sip.c: Registration from '' failed for '104.238.38.209:63635' - Wrong password
[2020-02-02 10:07:17] SECURITY[1163] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-02-02T10:07:17.257-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="700",SessionID="0x7fd82cd25138",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/104.238.38.209/63635",Challenge="1336417b",ReceivedChallenge="1336417b",ReceivedHash="89eaa00f5fe0c5a7adfcaec61e69ec78"
[2020-02-02 10:09:37] NOTICE[1148] chan_sip.c: Registration from '' failed for '104.238.38.209:51602' - Wrong password
[2020-02-02 10:09:37] SECURITY[1163] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-02-02T10:09:37.425-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="141",SessionID="0x7fd82c2348d8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/104.238.38.209
...

[2020-02-02 07:41:38] NOTICE[1148] chan_sip.c: Registration from '' failed for '104.238.38.209:64233' - Wrong password
[2020-02-02 07:41:38] SECURITY[1163] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-02-02T07:41:38.596-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="5002",SessionID="0x7fd82c5547b8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/104.238.38.209/64233",Challenge="61a786c4",ReceivedChallenge="61a786c4",ReceivedHash="80f9c59b7f585b650fa7f40a979b8405"
[2020-02-02 07:44:23] NOTICE[1148] chan_sip.c: Registration from '' failed for '104.238.38.209:54593' - Wrong password
[2020-02-02 07:44:23] SECURITY[1163] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-02-02T07:44:23.772-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="602",SessionID="0x7fd82c314398",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/104.238.38.2
...

Jun 26 15:49:47 onepixel sshd[3731234]: Failed password for invalid user yaoyuan from 116.196.81.216 port 60752 ssh2
Jun 26 15:54:03 onepixel sshd[3733357]: Invalid user alex from 116.196.81.216 port 50924
Jun 26 15:54:03 onepixel sshd[3733357]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.196.81.216 
Jun 26 15:54:03 onepixel sshd[3733357]: Invalid user alex from 116.196.81.216 port 50924
Jun 26 15:54:06 onepixel sshd[3733357]: Failed password for invalid user alex from 116.196.81.216 port 50924 ssh2

Jun 26 16:06:14 ns382633 sshd\[31984\]: Invalid user wagner from 180.76.179.67 port 33708
Jun 26 16:06:14 ns382633 sshd\[31984\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.76.179.67
Jun 26 16:06:16 ns382633 sshd\[31984\]: Failed password for invalid user wagner from 180.76.179.67 port 33708 ssh2
Jun 26 16:09:55 ns382633 sshd\[32409\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.76.179.67  user=root
Jun 26 16:09:57 ns382633 sshd\[32409\]: Failed password for root from 180.76.179.67 port 35544 ssh2

Jun 26 14:38:18 PorscheCustomer sshd[9846]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.144.252.164
Jun 26 14:38:20 PorscheCustomer sshd[9846]: Failed password for invalid user mcqueen from 218.144.252.164 port 34516 ssh2
Jun 26 14:40:36 PorscheCustomer sshd[9914]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.144.252.164
...

Jun 26 19:20:47 host sshd[14365]: Invalid user minecraft from 185.82.213.6 port 40108
...

Scanned 281 unique addresses for 2 unique TCP ports in 24 hours (ports 5915,27966)

[Fri Jun 26 18:25:05.261722 2020] [:error] [pid 19195:tid 140192800052992] [client 76.69.76.31:47788] [client 76.69.76.31] 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 "XvXbETO28GrZiprkFPSZMwAAAcQ"]
...

Bruteforce detected by fail2ban

Bruteforce detected by fail2ban

46.21.209.140 (PL/Poland/ip-46-21-209-140.nette.pl), 2 distributed smtpauth attacks on account [marker] in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_DISTATTACK; Logs: 2020-06-26 19:24:41 plain authenticator failed for ([187.63.45.82]) [187.63.45.82]: 535 Incorrect authentication data (set_id=marker)
2020-06-26 19:06:53 plain authenticator failed for ip-46-21-209-140.nette.pl [46.21.209.140]: 535 Incorrect authentication data (set_id=marker)

IP Addresses Blocked:

187.63.45.82 (BR/Brazil/-)

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

Jun 26 17:55:20 * sshd[29290]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=105.226.32.2
Jun 26 17:55:22 * sshd[29290]: Failed password for invalid user khalid from 105.226.32.2 port 53846 ssh2

Jun 26 19:35:33 sip sshd[768642]: Failed password for invalid user laura from 37.152.177.66 port 33094 ssh2
Jun 26 19:39:03 sip sshd[768653]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.152.177.66  user=root
Jun 26 19:39:05 sip sshd[768653]: Failed password for root from 37.152.177.66 port 59126 ssh2
...

Jun 26 18:13:27 pve1 sshd[16278]: Failed password for root from 116.236.189.134 port 41664 ssh2
...

 TCP (SYN) 134.209.164.184:56091 -> port 31574, len 44

Jun 26 14:49:35 eventyay sshd[10345]: Failed password for root from 192.241.249.226 port 51106 ssh2
Jun 26 14:52:59 eventyay sshd[10434]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.241.249.226
Jun 26 14:53:02 eventyay sshd[10434]: Failed password for invalid user bogdan from 192.241.249.226 port 49636 ssh2
...