\[2019-09-27 07:35:33\] SECURITY\[2006\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-27T07:35:33.416-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="2045701148333554002",SessionID="0x7f1e1c8be8a8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.135/57586",ACLName="no_extension_match"
\[2019-09-27 07:35:51\] SECURITY\[2006\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-27T07:35:51.717-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="1604601148857315011",SessionID="0x7f1e1c2bed58",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.135/57168",ACLName="no_extension_match"
\[2019-09-27 07:36:01\] SECURITY\[2006\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-27T07:36:01.907-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="1166801148833566007",SessionID="0x7f1e1c1e96b8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.135/52578",

\[2019-09-20 03:10:46\] SECURITY\[2283\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-20T03:10:46.888-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="5926501148857315011",SessionID="0x7fcd8cce9508",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.135/57828",ACLName="no_extension_match"
\[2019-09-20 03:11:40\] SECURITY\[2283\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-20T03:11:40.257-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="6753601148333554002",SessionID="0x7fcd8c1615d8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.135/54245",ACLName="no_extension_match"
\[2019-09-20 03:11:42\] SECURITY\[2283\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-20T03:11:42.492-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="5102201148833566007",SessionID="0x7fcd8c409238",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.135/60313",

\[2019-09-19 20:35:09\] SECURITY\[2283\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-19T20:35:09.107-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="5080501148833566007",SessionID="0x7fcd8c00eff8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.135/55471",ACLName="no_extension_match"
\[2019-09-19 20:35:57\] SECURITY\[2283\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-19T20:35:57.645-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="5905101148857315011",SessionID="0x7fcd8c1c4788",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.135/63143",ACLName="no_extension_match"
\[2019-09-19 20:36:23\] SECURITY\[2283\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-19T20:36:23.991-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="6731201148333554002",SessionID="0x7fcd8c0e1918",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.135/65458",

\[2019-09-13 16:18:32\] SECURITY\[20693\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-13T16:18:32.922-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="1614501148833566007",SessionID="0x7f8a6c2bd778",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.135/60628",ACLName="no_extension_match"
\[2019-09-13 16:18:39\] SECURITY\[20693\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-13T16:18:39.343-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="4462701148333554002",SessionID="0x7f8a6c65cf08",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.135/60753",ACLName="no_extension_match"
\[2019-09-13 16:19:18\] SECURITY\[20693\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-13T16:19:18.691-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="3046011048857315011",SessionID="0x7f8a6c2bd778",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.135/5501

\[2019-09-12 23:25:11\] SECURITY\[20693\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-12T23:25:11.518-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="4397801148333554002",SessionID="0x7f8a6c03a738",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.135/50519",ACLName="no_extension_match"
\[2019-09-12 23:25:51\] SECURITY\[20693\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-12T23:25:51.587-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="1545601148833566007",SessionID="0x7f8a6c40bb88",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.135/61096",ACLName="no_extension_match"
\[2019-09-12 23:25:53\] SECURITY\[20693\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-12T23:25:53.582-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="2980401148857315011",SessionID="0x7f8a6c10e468",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.135/5647

\[2019-09-12 02:58:58\] SECURITY\[1849\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-12T02:58:58.403-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="4325101148333554002",SessionID="0x7fd9a863a768",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.135/62889",ACLName="no_extension_match"
\[2019-09-12 02:59:47\] SECURITY\[1849\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-12T02:59:47.440-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="1462201148833566007",SessionID="0x7fd9a8361898",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.135/64419",ACLName="no_extension_match"
\[2019-09-12 03:00:20\] SECURITY\[1849\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-09-12T03:00:20.711-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="2905901148857315011",SessionID="0x7fd9a8361898",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.135/53547",

unauthorized connection attempt

[2020-06-28 17:24:51] NOTICE[1273] chan_sip.c: Registration from '"2908" ' failed for '77.247.110.2:5064' - Wrong password
[2020-06-28 17:24:51] SECURITY[1288] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-06-28T17:24:51.624-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="2908",SessionID="0x7f31c02f97a8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.2/5064",Challenge="37caaa52",ReceivedChallenge="37caaa52",ReceivedHash="e87c29e6c1817591943b89639a4a0676"
[2020-06-28 17:29:09] NOTICE[1273] chan_sip.c: Registration from '"2908" ' failed for '77.247.110.2:5064' - Wrong password
[2020-06-28 17:29:09] SECURITY[1288] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-06-28T17:29:09.196-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="2908",SessionID="0x7f31c02adcc8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.24
...

scans once in preceeding hours on the ports (in chronological order) 7020 resulting in total of 1 scans from 77.247.110.0/24 block.

Multiport scan 12 ports : 5064 5065 5066 5073 5074 5085 5086 5087 5088 5097 5098 5099

TCP Port Scanning

firewall-block, port(s): 20707/udp

Port scan denied

Found User-Agent associated with security scanner
Request Missing a Host Header

Port scanning [3 denied]

Port scanning [3 denied]

trying to access non-authorized port

05/24/2020-08:16:45.569374 77.247.110.58 Protocol: 17 ET SCAN Sipvicious Scan

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

[2020-05-11 12:56:03] NOTICE[1157] chan_sip.c: Registration from '2113 ' failed for '77.247.110.25:39139' - Wrong password
[2020-05-11 12:56:03] SECURITY[1173] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-05-11T12:56:03.094-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="2113",SessionID="0x7f5f107b3898",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.25/39139",Challenge="6e9e74f7",ReceivedChallenge="6e9e74f7",ReceivedHash="7719d35949f68e6bbd867e678d222a11"
[2020-05-11 13:02:11] NOTICE[1157] chan_sip.c: Registration from '1333333 ' failed for '77.247.110.25:45567' - Wrong password
[2020-05-11 13:02:11] SECURITY[1173] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-05-11T13:02:11.143-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="1333333",SessionID="0x7f5f106f5588",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV
...

05/10/2020-17:42:49.443850 77.247.110.58 Protocol: 17 ET SCAN Sipvicious Scan

'Fail2Ban'

Invalid user alexandro from 113.176.89.116 port 48138

Unauthorized connection attempt from IP address 181.129.142.194 on Port 445(SMB)

Mar 25 03:54:12 www sshd\[39712\]: Invalid user gufeifei from 134.175.28.62
Mar 25 03:54:12 www sshd\[39712\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.175.28.62
Mar 25 03:54:14 www sshd\[39712\]: Failed password for invalid user gufeifei from 134.175.28.62 port 50110 ssh2
...

Mar 25 00:13:04 vps sshd[26372]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.178.28.163 
Mar 25 00:13:06 vps sshd[26372]: Failed password for invalid user teamspeak3 from 51.178.28.163 port 39882 ssh2
Mar 25 00:16:15 vps sshd[26689]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.178.28.163 
...

Mar 25 03:17:28 Ubuntu-1404-trusty-64-minimal sshd\[4674\]: Invalid user sinusbot from 114.67.90.65
Mar 25 03:17:28 Ubuntu-1404-trusty-64-minimal sshd\[4674\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=114.67.90.65
Mar 25 03:17:30 Ubuntu-1404-trusty-64-minimal sshd\[4674\]: Failed password for invalid user sinusbot from 114.67.90.65 port 34208 ssh2
Mar 25 03:22:19 Ubuntu-1404-trusty-64-minimal sshd\[7208\]: Invalid user gosc2 from 114.67.90.65
Mar 25 03:22:19 Ubuntu-1404-trusty-64-minimal sshd\[7208\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=114.67.90.65

Unauthorized connection attempt from IP address 212.98.173.17 on Port 445(SMB)

Mar 24 23:32:16 vps46666688 sshd[30116]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=115.84.253.162
Mar 24 23:32:18 vps46666688 sshd[30116]: Failed password for invalid user lty from 115.84.253.162 port 39356 ssh2
...

SSH auth scanning - multiple failed logins

DATE:2020-03-25 01:33:05, IP:103.108.157.174, PORT:ssh SSH brute force auth (docker-dc)

2020-03-24T19:24:23.263419linuxbox-skyline sshd[10342]: Invalid user b from 5.249.131.161 port 58488
...

SSH Invalid Login

Unauthorized connection attempt from IP address 148.153.27.26 on Port 445(SMB)

Invalid user gu from 107.181.174.74 port 53506

Automatic report - Port Scan