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

Fail2Ban Ban Triggered

$f2bV_matches

1601757674 - 10/03/2020 22:41:14 Host: 36.90.252.105/36.90.252.105 Port: 445 TCP Blocked

Oct  3 22:23:37 mail.srvfarm.net postfix/smtps/smtpd[663268]: warning: unknown[181.118.179.20]: SASL PLAIN authentication failed: 
Oct  3 22:23:38 mail.srvfarm.net postfix/smtps/smtpd[663268]: lost connection after AUTH from unknown[181.118.179.20]
Oct  3 22:26:30 mail.srvfarm.net postfix/smtps/smtpd[662244]: warning: unknown[181.118.179.20]: SASL PLAIN authentication failed: 
Oct  3 22:26:31 mail.srvfarm.net postfix/smtps/smtpd[662244]: lost connection after AUTH from unknown[181.118.179.20]
Oct  3 22:32:07 mail.srvfarm.net postfix/smtps/smtpd[662242]: warning: unknown[181.118.179.20]: SASL PLAIN authentication failed:

Oct  3 22:29:14 kunden sshd[23242]: Did not receive identification string from 213.231.11.168
Oct  3 22:29:14 kunden sshd[23241]: Did not receive identification string from 213.231.11.168
Oct  3 22:29:14 kunden sshd[23239]: Did not receive identification string from 213.231.11.168
Oct  3 22:29:14 kunden sshd[23240]: Did not receive identification string from 213.231.11.168
Oct  3 22:29:17 kunden sshd[23243]: Did not receive identification string from 213.231.11.168
Oct  3 22:29:31 kunden sshd[23244]: Invalid user admin1 from 213.231.11.168
Oct  3 22:29:31 kunden sshd[23246]: Invalid user admin1 from 213.231.11.168
Oct  3 22:29:32 kunden sshd[23247]: Invalid user admin1 from 213.231.11.168
Oct  3 22:29:32 kunden sshd[23245]: Invalid user admin1 from 213.231.11.168
Oct  3 22:29:32 kunden sshd[23248]: Invalid user admin1 from 213.231.11.168
Oct  3 22:29:32 kunden sshd[23244]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=213.231.11........
-------------------------------

MYH,DEF GET /wp-login.php

Oct  2 14:07:55 roki-contabo sshd\[1169\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=34.93.0.165  user=root
Oct  2 14:07:56 roki-contabo sshd\[1169\]: Failed password for root from 34.93.0.165 port 16044 ssh2
Oct  2 14:16:36 roki-contabo sshd\[1487\]: Invalid user target from 34.93.0.165
Oct  2 14:16:36 roki-contabo sshd\[1487\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=34.93.0.165
Oct  2 14:16:38 roki-contabo sshd\[1487\]: Failed password for invalid user target from 34.93.0.165 port 52930 ssh2
Oct  2 14:07:55 roki-contabo sshd\[1169\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=34.93.0.165  user=root
Oct  2 14:07:56 roki-contabo sshd\[1169\]: Failed password for root from 34.93.0.165 port 16044 ssh2
Oct  2 14:16:36 roki-contabo sshd\[1487\]: Invalid user target from 34.93.0.165
Oct  2 14:16:36 roki-contabo sshd\[1487\]: pam_unix\(sshd:auth
...

 TCP (SYN) 109.102.31.87:30358 -> port 8080, len 40

Oct  4 22:49:56 sso sshd[15698]: Failed password for root from 218.92.0.158 port 3100 ssh2
Oct  4 22:49:59 sso sshd[15698]: Failed password for root from 218.92.0.158 port 3100 ssh2
...

Oct  4 18:53:42 journals sshd\[65975\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.226.138.179  user=root
Oct  4 18:53:44 journals sshd\[65975\]: Failed password for root from 129.226.138.179 port 43974 ssh2
Oct  4 18:57:39 journals sshd\[66336\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.226.138.179  user=root
Oct  4 18:57:41 journals sshd\[66336\]: Failed password for root from 129.226.138.179 port 49140 ssh2
Oct  4 19:01:31 journals sshd\[66674\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.226.138.179  user=root
...

Oct  4 17:04:33 mail.srvfarm.net postfix/smtps/smtpd[1047457]: warning: porta42.santana.internettelecom.com.br[138.219.201.42]: SASL PLAIN authentication failed: 
Oct  4 17:04:33 mail.srvfarm.net postfix/smtps/smtpd[1047457]: lost connection after AUTH from porta42.santana.internettelecom.com.br[138.219.201.42]
Oct  4 17:06:51 mail.srvfarm.net postfix/smtpd[1046612]: warning: porta42.santana.internettelecom.com.br[138.219.201.42]: SASL PLAIN authentication failed: 
Oct  4 17:06:52 mail.srvfarm.net postfix/smtpd[1046612]: lost connection after AUTH from porta42.santana.internettelecom.com.br[138.219.201.42]
Oct  4 17:07:55 mail.srvfarm.net postfix/smtpd[1047103]: warning: porta42.santana.internettelecom.com.br[138.219.201.42]: SASL PLAIN authentication failed:

Invalid user user from 51.178.50.20 port 36638

Oct  5 03:33:52 itv-usvr-02 sshd[8675]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.174.227  user=root
Oct  5 03:38:05 itv-usvr-02 sshd[8821]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.174.227  user=root
Oct  5 03:42:07 itv-usvr-02 sshd[9039]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.174.227  user=root

Invalid user nicole from 181.94.226.164 port 15017

5x Failed Password