[2020-09-09 13:27:41] SECURITY[2022] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2020-09-09T13:27:41.388+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="",SessionID="518973635-123769044-452640836",LocalAddress="IPV4/UDP/51.255.2.242/5060",RemoteAddress="IPV4/UDP/5.183.92.170/60923",Challenge="1599650861/52198d4167c3a9a00e5d361ee7f02dcd",Response="6532c6282320ff82d1005d4123862644",ExpectedResponse=""
[2020-09-09 13:27:41] SECURITY[2022] res_security_log.c: SecurityEvent="InvalidAccountID",EventTV="2020-09-09T13:27:41.418+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="10",SessionID="518973635-123769044-452640836",LocalAddress="IPV4/UDP/51.255.2.242/5060",RemoteAddress="IPV4/UDP/5.183.92.170/60923"
[2020-09-09 13:27:41] SECURITY[2022] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2020-09-09T13:27:41.419+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="",SessionID="518
...

[2020-09-09 13:27:41] SECURITY[2022] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2020-09-09T13:27:41.388+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="",SessionID="518973635-123769044-452640836",LocalAddress="IPV4/UDP/51.255.2.242/5060",RemoteAddress="IPV4/UDP/5.183.92.170/60923",Challenge="1599650861/52198d4167c3a9a00e5d361ee7f02dcd",Response="6532c6282320ff82d1005d4123862644",ExpectedResponse=""
[2020-09-09 13:27:41] SECURITY[2022] res_security_log.c: SecurityEvent="InvalidAccountID",EventTV="2020-09-09T13:27:41.418+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="10",SessionID="518973635-123769044-452640836",LocalAddress="IPV4/UDP/51.255.2.242/5060",RemoteAddress="IPV4/UDP/5.183.92.170/60923"
[2020-09-09 13:27:41] SECURITY[2022] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2020-09-09T13:27:41.419+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="",SessionID="518
...

[2020-09-09 13:27:41] SECURITY[2022] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2020-09-09T13:27:41.388+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="",SessionID="518973635-123769044-452640836",LocalAddress="IPV4/UDP/51.255.2.242/5060",RemoteAddress="IPV4/UDP/5.183.92.170/60923",Challenge="1599650861/52198d4167c3a9a00e5d361ee7f02dcd",Response="6532c6282320ff82d1005d4123862644",ExpectedResponse=""
[2020-09-09 13:27:41] SECURITY[2022] res_security_log.c: SecurityEvent="InvalidAccountID",EventTV="2020-09-09T13:27:41.418+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="10",SessionID="518973635-123769044-452640836",LocalAddress="IPV4/UDP/51.255.2.242/5060",RemoteAddress="IPV4/UDP/5.183.92.170/60923"
[2020-09-09 13:27:41] SECURITY[2022] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2020-09-09T13:27:41.419+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="",SessionID="518
...

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[2020-07-16 18:26:05] NOTICE[1277] chan_sip.c: Registration from '"543"' failed for '5.183.92.128:52838' - Wrong password
[2020-07-16 18:26:05] SECURITY[1295] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-16T18:26:05.073-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="543",SessionID="0x7f175414cf98",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/5.183.92.128/52838",Challenge="328762d7",ReceivedChallenge="328762d7",ReceivedHash="f154eae596210d6e27e3ca3700e7b8de"
[2020-07-16 18:32:29] NOTICE[1277] chan_sip.c: Registration from '"544"' failed for '5.183.92.128:37339' - Wrong password
[2020-07-16 18:32:29] SECURITY[1295] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-16T18:32:29.083-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="544",SessionID="0x7f17540de808",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/5.183.92.1
...

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\[Apr 12 06:53:33\] NOTICE\[2019\] chan_sip.c: Registration from '\' failed for '5.183.92.176:53654' - Wrong password
\[Apr 12 06:54:20\] NOTICE\[2019\] chan_sip.c: Registration from '\' failed for '5.183.92.176:59122' - Wrong password
\[Apr 12 06:54:42\] NOTICE\[2019\] chan_sip.c: Registration from '\' failed for '5.183.92.176:60576' - Wrong password
\[Apr 12 06:54:48\] NOTICE\[2019\] chan_sip.c: Registration from '\' failed for '5.183.92.176:65343' - Wrong password
\[Apr 12 06:55:00\] NOTICE\[2019\] chan_sip.c: Registration from '\' failed for '5.183.92.176:59309' - Wrong password
\[Apr 12 06:55:11\] NOTICE\[2019\] chan_sip.c: Registration from '\' failed for '5.183.92.176:51353' - Wrong password
\[Apr 12 06:55:31\] NOTICE\[2019\] chan_sip.c: Registration from '\' failed for '5.1
...

Has tried to attack my server.

POST /index.php/napisat-nam.html HTTP/1.0 303 - index.phpMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36 OPR/55.0.2994.44

[2020-02-26 22:38:49] NOTICE[14744] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '' failed for '5.183.92.32:64598' (callid: 376215522-649646893-389571818) - Failed to authenticate
[2020-02-26 22:38:49] SECURITY[20721] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2020-02-26T22:38:49.492+0100",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="",SessionID="376215522-649646893-389571818",LocalAddress="IPV4/UDP/185.118.196.148/5060",RemoteAddress="IPV4/UDP/5.183.92.32/64598",Challenge="1582753129/dad733ecc9e5841b0a1529ab2e7adcda",Response="1de0935f9f82950b6c3e7fb95c212f82",ExpectedResponse=""
[2020-02-26 22:38:49] NOTICE[14744] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '' failed for '5.183.92.32:64598' (callid: 376215522-649646893-389571818) - Failed to authenticate
[2020-02-26 22:38:49] SECURITY[20721] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2020-02-26T22:38:49.563+0

2020-07-06T07:58:18.811619vps751288.ovh.net sshd\[7755\]: Invalid user kafka from 51.77.147.5 port 48152
2020-07-06T07:58:18.820989vps751288.ovh.net sshd\[7755\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.ip-51-77-147.eu
2020-07-06T07:58:20.676616vps751288.ovh.net sshd\[7755\]: Failed password for invalid user kafka from 51.77.147.5 port 48152 ssh2
2020-07-06T08:01:40.198940vps751288.ovh.net sshd\[7839\]: Invalid user nvm from 51.77.147.5 port 46616
2020-07-06T08:01:40.206835vps751288.ovh.net sshd\[7839\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.ip-51-77-147.eu

$f2bV_matches

Jul  6 05:52:51 vps647732 sshd[18882]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=14.229.228.189
Jul  6 05:52:53 vps647732 sshd[18882]: Failed password for invalid user admina from 14.229.228.189 port 50411 ssh2
...

SSH login attempts.

1594007540 - 07/06/2020 05:52:20 Host: 124.83.119.5/124.83.119.5 Port: 445 TCP Blocked

Automatic report - XMLRPC Attack

2020-07-06 08:32:37 dovecot_login authenticator failed for \(User\) \[46.38.145.253\]: 535 Incorrect authentication data \(set_id=quark@hosting1.no-server.de\)
2020-07-06 08:32:46 dovecot_login authenticator failed for \(User\) \[46.38.145.253\]: 535 Incorrect authentication data \(set_id=kurgan@hosting1.no-server.de\)
2020-07-06 08:32:47 dovecot_login authenticator failed for \(User\) \[46.38.145.253\]: 535 Incorrect authentication data \(set_id=kurgan@hosting1.no-server.de\)
2020-07-06 08:33:04 dovecot_login authenticator failed for \(User\) \[46.38.145.253\]: 535 Incorrect authentication data \(set_id=kurgan@hosting1.no-server.de\)
2020-07-06 08:33:22 dovecot_login authenticator failed for \(User\) \[46.38.145.253\]: 535 Incorrect authentication data \(set_id=kurgan@hosting1.no-server.de\)
2020-07-06 08:33:30 dovecot_login authenticator failed for \(User\) \[46.38.145.253\]: 535 Incorrect authentication data \(set_id=concrete@hosting1.no-server.de\)
2020-07-06 08:33:35 dovecot_login
...

2020-07-06T06:30:51.769154shield sshd\[29962\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.9.153  user=root
2020-07-06T06:30:53.399854shield sshd\[29962\]: Failed password for root from 106.13.9.153 port 33670 ssh2
2020-07-06T06:32:45.899080shield sshd\[30725\]: Invalid user howard from 106.13.9.153 port 54320
2020-07-06T06:32:45.902521shield sshd\[30725\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.9.153
2020-07-06T06:32:47.849874shield sshd\[30725\]: Failed password for invalid user howard from 106.13.9.153 port 54320 ssh2

Jul  6 07:18:24 rocket sshd[20227]: Failed password for root from 222.186.180.142 port 20868 ssh2
Jul  6 07:18:42 rocket sshd[20252]: Failed password for root from 222.186.180.142 port 58900 ssh2
...

Lines containing failures of 125.124.120.123 (max 1000)
Jul  6 02:47:28 mxbb sshd[11844]: Invalid user vp from 125.124.120.123 port 43792
Jul  6 02:47:28 mxbb sshd[11844]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=125.124.120.123
Jul  6 02:47:30 mxbb sshd[11844]: Failed password for invalid user vp from 125.124.120.123 port 43792 ssh2
Jul  6 02:47:30 mxbb sshd[11844]: Received disconnect from 125.124.120.123 port 43792:11: Bye Bye [preauth]
Jul  6 02:47:30 mxbb sshd[11844]: Disconnected from 125.124.120.123 port 43792 [preauth]
Jul  6 02:52:27 mxbb sshd[11980]: Invalid user bav from 125.124.120.123 port 38221
Jul  6 02:52:27 mxbb sshd[11980]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=125.124.120.123
Jul  6 02:52:29 mxbb sshd[11980]: Failed password for invalid user bav from 125.124.120.123 port 38221 ssh2
Jul  6 02:52:29 mxbb sshd[11980]: Received disconnect from 125.124.120.123 p........
------------------------------

2020-07-06T06:31:09.938557shield sshd\[30120\]: Invalid user shubh from 117.240.172.19 port 57587
2020-07-06T06:31:09.942569shield sshd\[30120\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=117.240.172.19
2020-07-06T06:31:11.713737shield sshd\[30120\]: Failed password for invalid user shubh from 117.240.172.19 port 57587 ssh2
2020-07-06T06:34:01.049215shield sshd\[31421\]: Invalid user victor from 117.240.172.19 port 45833
2020-07-06T06:34:01.053497shield sshd\[31421\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=117.240.172.19

Lines containing failures of 106.54.91.157
Jul  6 05:33:36 linuxrulz sshd[11607]: Invalid user admin from 106.54.91.157 port 56286
Jul  6 05:33:36 linuxrulz sshd[11607]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.54.91.157 
Jul  6 05:33:37 linuxrulz sshd[11607]: Failed password for invalid user admin from 106.54.91.157 port 56286 ssh2
Jul  6 05:33:38 linuxrulz sshd[11607]: Received disconnect from 106.54.91.157 port 56286:11: Bye Bye [preauth]
Jul  6 05:33:38 linuxrulz sshd[11607]: Disconnected from invalid user admin 106.54.91.157 port 56286 [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=106.54.91.157

Jul  6 08:24:43 vps639187 sshd\[10413\]: Invalid user apiadmin from 51.178.28.50 port 34958
Jul  6 08:24:43 vps639187 sshd\[10413\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.178.28.50
Jul  6 08:24:45 vps639187 sshd\[10413\]: Failed password for invalid user apiadmin from 51.178.28.50 port 34958 ssh2
...

1594007568 - 07/06/2020 10:52:48 Host: softbank060135100022.bbtec.net/60.135.100.22 Port: 23 TCP Blocked
...

Jul  6 08:57:36 ns381471 sshd[21168]: Failed password for root from 222.186.180.223 port 25402 ssh2
Jul  6 08:57:40 ns381471 sshd[21168]: Failed password for root from 222.186.180.223 port 25402 ssh2