\[2019-08-13 22:23:57\] NOTICE\[5713\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '77.234.46.145:5987' \(callid: 627922654-1829003958-458813453\) - Failed to authenticate
\[2019-08-13 22:23:57\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2019-08-13T22:23:57.475+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="\",SessionID="627922654-1829003958-458813453",LocalAddress="IPV4/UDP/188.40.118.248/5060",RemoteAddress="IPV4/UDP/77.234.46.145/5987",Challenge="1565727837/1f8f0cf151489e941cd77f7763c2fb0a",Response="325d83befecdb5d5dbd7667c28bb7879",ExpectedResponse=""
\[2019-08-13 22:23:57\] NOTICE\[18654\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '77.234.46.145:5987' \(callid: 627922654-1829003958-458813453\) - Failed to authenticate
\[2019-08-13 22:23:57\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFailed

this person hacked one of my social media accounts and sold it online.

Web App Attack

\[2019-07-05 04:57:44\] NOTICE\[13443\] chan_sip.c: Registration from '\' failed for '77.234.46.193:2790' - Wrong password
\[2019-07-05 04:57:58\] NOTICE\[13443\] chan_sip.c: Registration from '\' failed for '77.234.46.193:2724' - Wrong password
\[2019-07-05 04:58:13\] NOTICE\[13443\] chan_sip.c: Registration from '\' failed for '77.234.46.193:2761' - Wrong password
...

\[2019-07-05 00:22:58\] NOTICE\[13443\] chan_sip.c: Registration from '\' failed for '77.234.46.193:2675' - Wrong password
\[2019-07-05 00:22:58\] SECURITY\[13451\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-05T00:22:58.393-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="8090",SessionID="0x7f02f8335788",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.234.46.193/63609",Challenge="694c01fe",ReceivedChallenge="694c01fe",ReceivedHash="259209eb0904d2473a2961fd0318ad0f"
\[2019-07-05 00:23:13\] NOTICE\[13443\] chan_sip.c: Registration from '\' failed for '77.234.46.193:2751' - Wrong password
\[2019-07-05 00:23:13\] SECURITY\[13451\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-05T00:23:13.994-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="9002",SessionID="0x7f02f869b578",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.234.

\[2019-07-04 17:03:45\] NOTICE\[13443\] chan_sip.c: Registration from '\' failed for '77.234.46.193:2759' - Wrong password
\[2019-07-04 17:04:00\] NOTICE\[13443\] chan_sip.c: Registration from '\' failed for '77.234.46.193:2634' - Wrong password
\[2019-07-04 17:04:13\] NOTICE\[13443\] chan_sip.c: Registration from '\' failed for '77.234.46.193:2762' - Wrong password
...

\[2019-07-02 21:20:08\] NOTICE\[13443\] chan_sip.c: Registration from '\' failed for '77.234.46.193:2622' - Wrong password
\[2019-07-02 21:20:08\] SECURITY\[13451\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-02T21:20:08.542-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="1011",SessionID="0x7f02f81ae088",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.234.46.193/57160",Challenge="7731fff5",ReceivedChallenge="7731fff5",ReceivedHash="08e4d2335f5dd4d3effc102911225033"
\[2019-07-02 21:20:22\] NOTICE\[13443\] chan_sip.c: Registration from '\' failed for '77.234.46.193:2695' - Wrong password
\[2019-07-02 21:20:22\] SECURITY\[13451\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-02T21:20:22.815-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="1012",SessionID="0x7f02f810d948",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.234.

\[2019-07-02 07:03:32\] NOTICE\[13443\] chan_sip.c: Registration from '\' failed for '77.234.46.193:2782' - Wrong password
\[2019-07-02 07:03:32\] SECURITY\[13451\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-02T07:03:32.678-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="999",SessionID="0x7f02f80d17f8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.234.46.193/51430",Challenge="07cf4505",ReceivedChallenge="07cf4505",ReceivedHash="2ac3c2b81f182654c439829811ef7668"
\[2019-07-02 07:03:46\] NOTICE\[13443\] chan_sip.c: Registration from '\' failed for '77.234.46.193:2786' - Wrong password
\[2019-07-02 07:03:46\] SECURITY\[13451\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-02T07:03:46.438-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="9999",SessionID="0x7f02f82b2728",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.234.46

\[2019-07-01 18:33:26\] NOTICE\[13443\] chan_sip.c: Registration from '\' failed for '77.234.46.193:2695' - Wrong password
\[2019-07-01 18:33:26\] SECURITY\[13451\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-01T18:33:26.741-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="703",SessionID="0x7f02f810d9f8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.234.46.193/59624",Challenge="1b5ac43b",ReceivedChallenge="1b5ac43b",ReceivedHash="f8a18d20149947040bca9e8c82805ee7"
\[2019-07-01 18:33:42\] NOTICE\[13443\] chan_sip.c: Registration from '\' failed for '77.234.46.193:2637' - Wrong password
\[2019-07-01 18:33:42\] SECURITY\[13451\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-01T18:33:42.683-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="704",SessionID="0x7f02f81b0978",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.234.46.1

\[2019-06-22 00:31:36\] SECURITY\[1857\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-06-22T00:31:36.791-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="51900972595146363",SessionID="0x7fc4240077d8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.234.46.242/64356",ACLName="no_extension_match"
\[2019-06-22 00:37:47\] SECURITY\[1857\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-06-22T00:37:47.727-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="52200972595146363",SessionID="0x7fc4240077d8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.234.46.242/61964",ACLName="no_extension_match"
\[2019-06-22 00:39:53\] SECURITY\[1857\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-06-22T00:39:53.699-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="52300972595146363",SessionID="0x7fc424003de8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.234.46.242/61031",ACLName="

\[2019-06-21 11:34:05\] SECURITY\[2312\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-06-21T11:34:05.848-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="14300972595146363",SessionID="0x7fea9c696c38",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.234.46.242/61486",ACLName="no_extension_match"
\[2019-06-21 11:36:02\] SECURITY\[2312\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-06-21T11:36:02.121-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="14400972595146363",SessionID="0x7fea9d2c8fd8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.234.46.242/56037",ACLName="no_extension_match"
\[2019-06-21 11:38:06\] SECURITY\[2312\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-06-21T11:38:06.926-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="14500972595146363",SessionID="0x7fea9c696c38",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.234.46.242/60306",ACLName="

Feb 29 15:23:28 silence02 sshd[13761]: Failed password for root from 106.246.250.202 port 12249 ssh2
Feb 29 15:28:09 silence02 sshd[13996]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.246.250.202
Feb 29 15:28:11 silence02 sshd[13996]: Failed password for invalid user sinusbot from 106.246.250.202 port 23752 ssh2

Feb 29 15:49:16 localhost sshd\[31881\]: Invalid user cactiuser from 51.38.128.30 port 42658
Feb 29 15:49:16 localhost sshd\[31881\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.128.30
Feb 29 15:49:18 localhost sshd\[31881\]: Failed password for invalid user cactiuser from 51.38.128.30 port 42658 ssh2

[2020-02-29 09:28:04] NOTICE[1148] chan_sip.c: Registration from '"2016" ' failed for '45.143.220.171:5661' - Wrong password
[2020-02-29 09:28:04] SECURITY[1163] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-02-29T09:28:04.243-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="2016",SessionID="0x7fd82c538db8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.143.220.171/5661",Challenge="42c33599",ReceivedChallenge="42c33599",ReceivedHash="c47c6e6899d7ea0e0d17bd49cc32e1bd"
[2020-02-29 09:28:04] NOTICE[1148] chan_sip.c: Registration from '"2016" ' failed for '45.143.220.171:5661' - Wrong password
[2020-02-29 09:28:04] SECURITY[1163] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-02-29T09:28:04.426-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="2016",SessionID="0x7fd82c144298",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP
...

Feb 29 14:20:54 hcbbdb sshd\[31211\]: Invalid user osman from 129.211.164.110
Feb 29 14:20:54 hcbbdb sshd\[31211\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.211.164.110
Feb 29 14:20:57 hcbbdb sshd\[31211\]: Failed password for invalid user osman from 129.211.164.110 port 40234 ssh2
Feb 29 14:28:05 hcbbdb sshd\[31949\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.211.164.110  user=root
Feb 29 14:28:08 hcbbdb sshd\[31949\]: Failed password for root from 129.211.164.110 port 33056 ssh2

Unauthorized connection attempt detected from IP address 222.186.180.9 to port 22 [J]

Unauthorized connection attempt detected from IP address 122.117.34.99 to port 23 [J]

Feb 29 15:27:50 MK-Soft-VM8 sshd[11374]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=95.105.233.209 
Feb 29 15:27:51 MK-Soft-VM8 sshd[11374]: Failed password for invalid user cms from 95.105.233.209 port 33350 ssh2
...

unauthorized connection attempt

suspicious action Sat, 29 Feb 2020 11:27:41 -0300

Feb 29 09:51:46 plusreed sshd[21482]: Invalid user student from 117.89.129.178
...

Feb 29 15:28:00 srv206 sshd[30031]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=46.101.184.111  user=root
Feb 29 15:28:02 srv206 sshd[30031]: Failed password for root from 46.101.184.111 port 40828 ssh2
Feb 29 15:28:28 srv206 sshd[30033]: Invalid user oracle from 46.101.184.111
...

Feb 29 14:27:36 system,error,critical: login failure for user root from 189.15.54.31 via telnet
Feb 29 14:27:40 system,error,critical: login failure for user admin from 189.15.54.31 via telnet
Feb 29 14:27:42 system,error,critical: login failure for user admin from 189.15.54.31 via telnet
Feb 29 14:27:48 system,error,critical: login failure for user root from 189.15.54.31 via telnet
Feb 29 14:27:52 system,error,critical: login failure for user root from 189.15.54.31 via telnet
Feb 29 14:27:54 system,error,critical: login failure for user admin from 189.15.54.31 via telnet
Feb 29 14:28:00 system,error,critical: login failure for user e8telnet from 189.15.54.31 via telnet
Feb 29 14:28:04 system,error,critical: login failure for user admin from 189.15.54.31 via telnet
Feb 29 14:28:07 system,error,critical: login failure for user root from 189.15.54.31 via telnet
Feb 29 14:28:12 system,error,critical: login failure for user root from 189.15.54.31 via telnet

suspicious action Sat, 29 Feb 2020 11:28:19 -0300

*Port Scan* detected from 64.190.205.9 (US/United States/64.190.205.9.static.skysilk.com). 4 hits in the last 121 seconds

Unauthorized connection attempt detected from IP address 196.37.111.170 to port 1433 [J]