firewall-block, port(s): 5061/udp

Multiport scan 31 ports : 5051 5053 5054 5055 5056 5057 5058 5059 5061(x2) 5090 5091(x2) 5092(x2) 5093(x2) 5094(x2) 5097 5098 5099 5160(x2) 5161 5260 5360 5460 5560 5660 5760(x2) 5860 5960 6070 6080 6666 7100

SIPVicious Scanner Detection

[2020-03-12 18:00:22] NOTICE[1148][C-000110da] chan_sip.c: Call from '' (45.143.220.240:5122) to extension '01146313115106' rejected because extension not found in context 'public'.
[2020-03-12 18:00:22] SECURITY[1163] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-03-12T18:00:22.571-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="01146313115106",SessionID="0x7fd82c530768",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.143.220.240/5122",ACLName="no_extension_match"
[2020-03-12 18:04:57] NOTICE[1148][C-000110dd] chan_sip.c: Call from '' (45.143.220.240:5082) to extension '901146313115106' rejected because extension not found in context 'public'.
[2020-03-12 18:04:57] SECURITY[1163] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-03-12T18:04:57.195-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="901146313115106",SessionID="0x7fd82c3f03d8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45
...

[2020-03-10 22:12:55] NOTICE[1148][C-00010b48] chan_sip.c: Call from '' (45.143.220.240:49339) to extension '01146132660951' rejected because extension not found in context 'public'.
[2020-03-10 22:12:55] SECURITY[1163] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-03-10T22:12:55.997-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="01146132660951",SessionID="0x7fd82c530768",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.143.220.240/49339",ACLName="no_extension_match"
[2020-03-10 22:16:09] NOTICE[1148][C-00010b4a] chan_sip.c: Call from '' (45.143.220.240:64718) to extension '901146132660951' rejected because extension not found in context 'public'.
[2020-03-10 22:16:09] SECURITY[1163] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-03-10T22:16:09.663-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="901146132660951",SessionID="0x7fd82c3f03d8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP
...

[2020-03-07 17:49:34] NOTICE[1148][C-0000f99b] chan_sip.c: Call from '' (45.143.220.240:63255) to extension '01146843737607' rejected because extension not found in context 'public'.
[2020-03-07 17:49:34] SECURITY[1163] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-03-07T17:49:34.550-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="01146843737607",SessionID="0x7fd82c3f03d8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.143.220.240/63255",ACLName="no_extension_match"
[2020-03-07 17:51:36] NOTICE[1148][C-0000f99d] chan_sip.c: Call from '' (45.143.220.240:63141) to extension '901146843737607' rejected because extension not found in context 'public'.
[2020-03-07 17:51:36] SECURITY[1163] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-03-07T17:51:36.727-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="901146843737607",SessionID="0x7fd82cdb8718",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP
...

[2020-03-06 09:20:00] NOTICE[1148][C-0000ec1e] chan_sip.c: Call from '' (45.143.220.240:63518) to extension '01146843737607' rejected because extension not found in context 'public'.
[2020-03-06 09:20:00] SECURITY[1163] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-03-06T09:20:00.969-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="01146843737607",SessionID="0x7fd82c3e9978",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.143.220.240/63518",ACLName="no_extension_match"
[2020-03-06 09:21:41] NOTICE[1148][C-0000ec21] chan_sip.c: Call from '' (45.143.220.240:63558) to extension '901146843737607' rejected because extension not found in context 'public'.
[2020-03-06 09:21:41] SECURITY[1163] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-03-06T09:21:41.815-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="901146843737607",SessionID="0x7fd82ca9d388",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP
...

[2020-03-06 05:39:17] NOTICE[1148][C-0000eaa8] chan_sip.c: Call from '' (45.143.220.240:52326) to extension '0046843737607' rejected because extension not found in context 'public'.
[2020-03-06 05:39:17] SECURITY[1163] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-03-06T05:39:17.704-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="0046843737607",SessionID="0x7fd82ca712e8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.143.220.240/52326",ACLName="no_extension_match"
[2020-03-06 05:44:20] NOTICE[1148][C-0000eaac] chan_sip.c: Call from '' (45.143.220.240:59429) to extension '01146843737607' rejected because extension not found in context 'public'.
[2020-03-06 05:44:20] SECURITY[1163] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-03-06T05:44:20.056-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="01146843737607",SessionID="0x7fd82c40d3d8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.
...

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

Aug 30 17:32:00 ip40 sshd[15430]: Failed password for root from 222.186.173.154 port 44552 ssh2
Aug 30 17:32:04 ip40 sshd[15430]: Failed password for root from 222.186.173.154 port 44552 ssh2
...

$f2bV_matches

1598789689 - 08/30/2020 14:14:49 Host: 137.59.242.231/137.59.242.231 Port: 445 TCP Blocked

Aug 30 17:28:00 db sshd[3556]: User root from 98.220.181.15 not allowed because none of user's groups are listed in AllowGroups
...

Aug 30 14:14:14 [host] sshd[3296]: Invalid user pr
Aug 30 14:14:14 [host] sshd[3296]: pam_unix(sshd:a
Aug 30 14:14:16 [host] sshd[3296]: Failed password

SSH brute-force attempt

Aug 30 14:37:26 mail postfix/smtpd[501258]: warning: unknown[45.148.10.98]: SASL LOGIN authentication failed: authentication failure
Aug 30 15:12:55 mail postfix/smtpd[501639]: warning: unknown[45.148.10.98]: SASL LOGIN authentication failed: authentication failure
Aug 30 15:14:32 mail postfix/smtpd[501639]: warning: unknown[45.148.10.98]: SASL LOGIN authentication failed: authentication failure
...

Aug 30 17:02:42 v22019038103785759 sshd\[23902\]: Invalid user crm from 218.25.89.99 port 63064
Aug 30 17:02:42 v22019038103785759 sshd\[23902\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.25.89.99
Aug 30 17:02:43 v22019038103785759 sshd\[23902\]: Failed password for invalid user crm from 218.25.89.99 port 63064 ssh2
Aug 30 17:06:33 v22019038103785759 sshd\[24229\]: Invalid user radio from 218.25.89.99 port 14753
Aug 30 17:06:33 v22019038103785759 sshd\[24229\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.25.89.99
...

(sshd) Failed SSH login from 64.183.249.110 (US/United States/rrcs-64-183-249-110.sw.biz.rr.com): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Aug 30 07:28:33 server sshd[6687]: Invalid user gas from 64.183.249.110 port 40331
Aug 30 07:28:36 server sshd[6687]: Failed password for invalid user gas from 64.183.249.110 port 40331 ssh2
Aug 30 08:11:41 server sshd[18316]: Invalid user wzr from 64.183.249.110 port 51584
Aug 30 08:11:43 server sshd[18316]: Failed password for invalid user wzr from 64.183.249.110 port 51584 ssh2
Aug 30 08:14:32 server sshd[18921]: Invalid user software from 64.183.249.110 port 17470

Aug 30 16:27:44 server sshd[3974]: Failed password for invalid user bj from 106.13.184.128 port 56618 ssh2
Aug 30 16:31:52 server sshd[9678]: Failed password for invalid user ann from 106.13.184.128 port 44874 ssh2
Aug 30 16:35:48 server sshd[16541]: Failed password for invalid user ohm from 106.13.184.128 port 33134 ssh2

Banned for a week because repeated abuses, for example SSH, but not only

Aug 30 15:46:28 ns41 sshd[524]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=14.241.240.70

2020-08-30 09:56:19.353343-0500  localhost sshd[72082]: Failed password for root from 106.116.118.89 port 60106 ssh2

WordPress XMLRPC scan :: 18.220.255.234 0.076 BYPASS [30/Aug/2020:12:14:46  0000] www.[censored_2] "POST //xmlrpc.php HTTP/1.1" 200 236 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0 Safari/537.36"

2020-08-30T12:09:31.977470dmca.cloudsearch.cf sshd[30740]: Invalid user www from 139.199.123.152 port 40652
2020-08-30T12:09:31.982993dmca.cloudsearch.cf sshd[30740]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.199.123.152
2020-08-30T12:09:31.977470dmca.cloudsearch.cf sshd[30740]: Invalid user www from 139.199.123.152 port 40652
2020-08-30T12:09:34.364234dmca.cloudsearch.cf sshd[30740]: Failed password for invalid user www from 139.199.123.152 port 40652 ssh2
2020-08-30T12:14:32.862327dmca.cloudsearch.cf sshd[30994]: Invalid user tan from 139.199.123.152 port 33888
2020-08-30T12:14:32.867364dmca.cloudsearch.cf sshd[30994]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.199.123.152
2020-08-30T12:14:32.862327dmca.cloudsearch.cf sshd[30994]: Invalid user tan from 139.199.123.152 port 33888
2020-08-30T12:14:34.239582dmca.cloudsearch.cf sshd[30994]: Failed password for invalid user tan from 139.199.
...