lot of request like this
[2020-06-25 18:49:07] NOTICE[1094]: chan_sip.c:29029 handle_request_register: Registration from '"100" ' failed for '45.143.220.13:7270' - Wrong password
[2020-06-25 18:49:07] NOTICE[1094]: chan_sip.c:29029 handle_request_register: Registration from '"100" ' failed for '45.143.220.13:7270' - Wrong password

SIP Server BruteForce Attack

firewall-block, port(s): 5060/udp

Automatic report - Banned IP Access

Attempted to connect 3 times to port 5060 UDP

2019-10-27 22:27:42	Local1.Warning	10.0.6.1	Oct 27 22:33:59 XTM850 (2019-10-27T19:33:59) firewall: msg_id="3000-0148" Deny 0-External Firebox 439 udp 20 48 45.143.220.31 81.22.17.x 5082 5060  geo_src="NLD"  (Unhandled External Packet-00)
2019-10-27 22:27:42	Local1.Warning	10.0.6.1	Oct 27 22:33:59 XTM850 (2019-10-27T19:33:59) firewall: msg_id="3000-0148" Deny 0-External Firebox 440 udp 20 48 45.143.220.31 81.22.17.x 5082 5060  geo_src="NLD"  (Unhandled External Packet-00)
2019-10-27 22:27:42	Local1.Warning	10.0.6.1	Oct 27 22:33:59 XTM850 (2019-10-27T19:33:59) firewall: msg_id="3000-0148" Deny 0-External Firebox 441 udp 20 48 45.143.220.31 81.22.17.x 5082 5060  geo_src="NLD"  (Unhandled External Packet-00)
2019-10-27 22:27:42	Local1.Warning	10.0.6.1	Oct 27 22:33:59 XTM850 (2019-10-27T19:33:59) firewall: msg_id="3000-0148" Deny 0-External Firebox 436 udp 20 48 45.143.220.31 81.22.17.x 5082 5060  geo_src="NLD"  (Unhandled External Packet-00)

\[2019-10-25 07:55:49\] NOTICE\[2601\] chan_sip.c: Registration from '\' failed for '45.143.220.13:54328' - Wrong password
\[2019-10-25 07:55:49\] SECURITY\[2634\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-10-25T07:55:49.199-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="1001",SessionID="0x7fdf2c160cc8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.143.220.13/54328",Challenge="7f67bb83",ReceivedChallenge="7f67bb83",ReceivedHash="f7161b98dca3ef641677f229c5faf8d2"
\[2019-10-25 07:56:05\] NOTICE\[2601\] chan_sip.c: Registration from '\' failed for '45.143.220.13:65024' - Wrong password
\[2019-10-25 07:56:05\] SECURITY\[2634\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-10-25T07:56:05.788-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="1001",SessionID="0x7fdf2c5fc4c8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.143.22

\[2019-10-21 08:07:49\] NOTICE\[2038\] chan_sip.c: Registration from '\' failed for '45.143.220.13:60062' - Wrong password
\[2019-10-21 08:07:49\] SECURITY\[2046\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-10-21T08:07:49.893-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="2345678",SessionID="0x7f6130804e48",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.143.220.13/60062",Challenge="67c249dd",ReceivedChallenge="67c249dd",ReceivedHash="fcc999db46a88b549bbd0f9bb5b0a9be"
\[2019-10-21 08:08:41\] NOTICE\[2038\] chan_sip.c: Registration from '\' failed for '45.143.220.13:60805' - Wrong password
\[2019-10-21 08:08:41\] SECURITY\[2046\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-10-21T08:08:41.675-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="234",SessionID="0x7f6130286de8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.14

\[2019-10-21 00:41:44\] NOTICE\[2038\] chan_sip.c: Registration from '\' failed for '45.143.220.13:54594' - Wrong password
\[2019-10-21 00:41:44\] SECURITY\[2046\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-10-21T00:41:44.200-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="1000",SessionID="0x7f6130477218",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.143.220.13/54594",Challenge="3a679145",ReceivedChallenge="3a679145",ReceivedHash="d99423412a2afa5e075b100ecf79bf75"
\[2019-10-21 00:42:50\] NOTICE\[2038\] chan_sip.c: Registration from '\' failed for '45.143.220.13:49290' - Wrong password
\[2019-10-21 00:42:50\] SECURITY\[2046\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-10-21T00:42:50.019-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="1000",SessionID="0x7f6130477218",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.143.22

\[2019-10-20 01:28:32\] NOTICE\[2038\] chan_sip.c: Registration from '\' failed for '45.143.220.13:62834' - Wrong password
\[2019-10-20 01:28:32\] SECURITY\[2046\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-10-20T01:28:32.642-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="6008",SessionID="0x7f6130477218",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.143.220.13/62834",Challenge="03a4cb44",ReceivedChallenge="03a4cb44",ReceivedHash="f87f9343e5d4e57a8cc55ac09847b582"
\[2019-10-20 01:29:04\] NOTICE\[2038\] chan_sip.c: Registration from '\' failed for '45.143.220.13:62645' - Wrong password
\[2019-10-20 01:29:04\] SECURITY\[2046\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-10-20T01:29:04.859-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="301",SessionID="0x7f6130477218",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.143.220.

The IP 45.143.220.3 has just been banned by Fail2Ban after 8 attempts

Automatic report - Brute Force attack using this IP address

Tried our host z.

45.143.220.59 was recorded 7 times by 2 hosts attempting to connect to the following ports: 5060. Incident counter (4h, 24h, all-time): 7, 16, 1532

45.143.220.59 was recorded 5 times by 2 hosts attempting to connect to the following ports: 5060. Incident counter (4h, 24h, all-time): 5, 30, 1507

[2020-08-15 11:32:40] NOTICE[1185][C-000027ae] chan_sip.c: Call from '' (45.143.220.87:6336) to extension '0046842002652' rejected because extension not found in context 'public'.
[2020-08-15 11:32:40] SECURITY[1203] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-08-15T11:32:40.124-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="0046842002652",SessionID="0x7f10c43e3a48",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.143.220.87/6336",ACLName="no_extension_match"
[2020-08-15 11:40:48] NOTICE[1185][C-000027b5] chan_sip.c: Call from '' (45.143.220.87:11278) to extension '+46842002652' rejected because extension not found in context 'public'.
[2020-08-15 11:40:48] SECURITY[1203] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-08-15T11:40:48.085-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="+46842002652",SessionID="0x7f10c43e3a48",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.143.220.8
...

Try to login my routers admin-account several times.

45.143.220.59 was recorded 5 times by 4 hosts attempting to connect to the following ports: 5060. Incident counter (4h, 24h, all-time): 5, 38, 1279

[N10.H2.VM2] Port Scanner Detected Blocked by UFW

08/07/2020-08:08:43.480573 45.143.220.59 Protocol: 17 ET SCAN Sipvicious Scan

Aug  5 07:28:09 debian-2gb-nbg1-2 kernel: \[18863752.168870\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=45.143.220.116 DST=195.201.40.59 LEN=444 TOS=0x00 PREC=0x00 TTL=54 ID=0 DF PROTO=UDP SPT=5252 DPT=5060 LEN=424

SmallBizIT.US 6 packets to udp(5060)

45.143.220.59 was recorded 10 times by 5 hosts attempting to connect to the following ports: 5060. Incident counter (4h, 24h, all-time): 10, 63, 653

firewall-block, port(s): 5060/udp

Jul 25 19:20:47 debian-2gb-nbg1-2 kernel: \[17956161.731244\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=45.143.220.116 DST=195.201.40.59 LEN=444 TOS=0x00 PREC=0x00 TTL=55 ID=0 DF PROTO=UDP SPT=5368 DPT=5060 LEN=424

port scan and connect, tcp 22 (ssh)

Oct  1 07:16:39 dev0-dcde-rnet sshd[1206]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.29.98.253
Oct  1 07:16:41 dev0-dcde-rnet sshd[1206]: Failed password for invalid user mailer from 119.29.98.253 port 37178 ssh2
Oct  1 07:44:13 dev0-dcde-rnet sshd[1291]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.29.98.253

Invalid user bng5 from 106.12.34.56 port 51606

Oct  1 03:06:20 xtremcommunity sshd\[58025\]: Invalid user snwokedi from 45.6.72.17 port 48520
Oct  1 03:06:20 xtremcommunity sshd\[58025\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.6.72.17
Oct  1 03:06:22 xtremcommunity sshd\[58025\]: Failed password for invalid user snwokedi from 45.6.72.17 port 48520 ssh2
Oct  1 03:11:18 xtremcommunity sshd\[58202\]: Invalid user inux from 45.6.72.17 port 60788
Oct  1 03:11:18 xtremcommunity sshd\[58202\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.6.72.17
...

IP Ban Report : https://help-dysk.pl/wordpress-firewall-plugins/ip/138.118.1.138/ 
 BR - 1H : (509)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : BR 
 NAME ASN : ASN264255 
 
 IP : 138.118.1.138 
 
 CIDR : 138.118.1.0/24 
 
 PREFIX COUNT : 5 
 
 UNIQUE IP COUNT : 2048 
 
 
 WYKRYTE ATAKI Z ASN264255 :  
  1H - 1 
  3H - 1 
  6H - 1 
 12H - 1 
 24H - 1 
 
 DateTime : 2019-10-01 05:51:15 
 
 INFO : Port MAX SCAN Scan Detected and Blocked by ADMIN  - data recovery

IP Ban Report : https://help-dysk.pl/wordpress-firewall-plugins/ip/142.134.229.178/ 
 CA - 1H : (78)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : CA 
 NAME ASN : ASN855 
 
 IP : 142.134.229.178 
 
 CIDR : 142.134.228.0/23 
 
 PREFIX COUNT : 1154 
 
 UNIQUE IP COUNT : 1068800 
 
 
 WYKRYTE ATAKI Z ASN855 :  
  1H - 1 
  3H - 2 
  6H - 2 
 12H - 2 
 24H - 2 
 
 DateTime : 2019-10-01 05:51:15 
 
 INFO : Port MAX SCAN Scan Detected and Blocked by ADMIN  - data recovery

10/01/2019-03:13:45.423864 213.166.70.101 Protocol: 6 ET SCAN NMAP -sS window 1024

Oct  1 07:14:08 www5 sshd\[2613\]: Invalid user 123456789 from 106.75.86.217
Oct  1 07:14:08 www5 sshd\[2613\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.75.86.217
Oct  1 07:14:10 www5 sshd\[2613\]: Failed password for invalid user 123456789 from 106.75.86.217 port 35782 ssh2
...

Oct  1 03:33:06 plusreed sshd[2304]: Invalid user password from 106.52.24.184
...

IP Ban Report : https://help-dysk.pl/wordpress-firewall-plugins/ip/95.158.157.152/ 
 BG - 1H : (49)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : BG 
 NAME ASN : ASN8967 
 
 IP : 95.158.157.152 
 
 CIDR : 95.158.157.0/24 
 
 PREFIX COUNT : 6 
 
 UNIQUE IP COUNT : 2560 
 
 
 WYKRYTE ATAKI Z ASN8967 :  
  1H - 1 
  3H - 1 
  6H - 1 
 12H - 1 
 24H - 1 
 
 DateTime : 2019-10-01 05:51:15 
 
 INFO : Port MAX SCAN Scan Detected and Blocked by ADMIN  - data recovery

Oct  1 04:14:53 www_kotimaassa_fi sshd[1084]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.187.60.182
Oct  1 04:14:55 www_kotimaassa_fi sshd[1084]: Failed password for invalid user admin from 37.187.60.182 port 53260 ssh2
...

Received: from delivery2.soundest.email ([159.135.230.47])

Sep 30 21:28:35 sachi sshd\[22015\]: Invalid user brett from 129.154.67.65
Sep 30 21:28:35 sachi sshd\[22015\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=oc-129-154-67-65.compute.oraclecloud.com
Sep 30 21:28:37 sachi sshd\[22015\]: Failed password for invalid user brett from 129.154.67.65 port 21086 ssh2
Sep 30 21:33:36 sachi sshd\[22424\]: Invalid user corpmail from 129.154.67.65
Sep 30 21:33:36 sachi sshd\[22424\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=oc-129-154-67-65.compute.oraclecloud.com

Oct  1 05:51:05 ns41 sshd[19758]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=62.234.68.215

Oct  1 12:35:15 gw1 sshd[3931]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=54.38.185.87
Oct  1 12:35:18 gw1 sshd[3931]: Failed password for invalid user koga from 54.38.185.87 port 37094 ssh2
...