\[2019-08-13 22:23:57\] 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="

Aug 19 08:44:55 ny01 sshd[30269]: Failed password for root from 206.189.199.48 port 40308 ssh2
Aug 19 08:47:35 ny01 sshd[30592]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=206.189.199.48
Aug 19 08:47:37 ny01 sshd[30592]: Failed password for invalid user 2 from 206.189.199.48 port 56012 ssh2

2020/08/19 13:31:57 [error] 28764#28764: *228349 open() "/var/services/web/dev" failed (2: No such file or directory), client: 157.230.216.203, server: , request: "GET /dev HTTP/1.1", host: "81.111.46.191"

Aug 19 13:31:49 l02a sshd[11347]: Invalid user sb from 110.78.23.220
Aug 19 13:31:49 l02a sshd[11347]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=110.78.23.220 
Aug 19 13:31:49 l02a sshd[11347]: Invalid user sb from 110.78.23.220
Aug 19 13:31:51 l02a sshd[11347]: Failed password for invalid user sb from 110.78.23.220 port 42464 ssh2

[portscan] Port scan

Attempted Brute Force (dovecot)

(sshd) Failed SSH login from 178.128.41.141 (GB/United Kingdom/-): 10 in the last 3600 secs

Unauthorized connection attempt from IP address 103.70.204.206 on Port 445(SMB)

Unauthorized connection attempt from IP address 45.179.115.11 on Port 445(SMB)

Aug 19 18:19:14 gw1 sshd[23533]: Failed password for root from 222.186.30.59 port 20657 ssh2
...

Aug 19 15:19:01 vps639187 sshd\[3216\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.182  user=root
Aug 19 15:19:02 vps639187 sshd\[3216\]: Failed password for root from 222.186.175.182 port 40668 ssh2
Aug 19 15:19:06 vps639187 sshd\[3216\]: Failed password for root from 222.186.175.182 port 40668 ssh2
...

Aug 19 14:30:39 ns382633 sshd\[3570\]: Invalid user readuser from 82.148.19.218 port 51022
Aug 19 14:30:39 ns382633 sshd\[3570\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=82.148.19.218
Aug 19 14:30:41 ns382633 sshd\[3570\]: Failed password for invalid user readuser from 82.148.19.218 port 51022 ssh2
Aug 19 14:37:46 ns382633 sshd\[4708\]: Invalid user swapnil from 82.148.19.218 port 38156
Aug 19 14:37:46 ns382633 sshd\[4708\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=82.148.19.218

Aug 19 17:58:13 dhoomketu sshd[2484435]: Invalid user ff from 111.229.163.149 port 44520
Aug 19 17:58:13 dhoomketu sshd[2484435]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.229.163.149 
Aug 19 17:58:13 dhoomketu sshd[2484435]: Invalid user ff from 111.229.163.149 port 44520
Aug 19 17:58:15 dhoomketu sshd[2484435]: Failed password for invalid user ff from 111.229.163.149 port 44520 ssh2
Aug 19 18:02:04 dhoomketu sshd[2484549]: Invalid user tos from 111.229.163.149 port 56858
...

Aug 19 14:40:24 server sshd[7178]: Failed none for root from 218.92.0.168 port 22991 ssh2
Aug 19 14:40:27 server sshd[7178]: Failed password for root from 218.92.0.168 port 22991 ssh2
Aug 19 14:40:32 server sshd[7178]: Failed password for root from 218.92.0.168 port 22991 ssh2

SSH/22 MH Probe, BF, Hack -

Aug 19 14:43:21 PorscheCustomer sshd[1920]: Failed password for root from 51.38.186.180 port 52964 ssh2
Aug 19 14:47:21 PorscheCustomer sshd[2040]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.186.180
Aug 19 14:47:23 PorscheCustomer sshd[2040]: Failed password for invalid user ftp from 51.38.186.180 port 57141 ssh2
...