[2020-09-15 17:43:18] NOTICE[1239][C-000042f5] chan_sip.c: Call from '' (37.49.230.252:57495) to extension '000441904911000' rejected because extension not found in context 'public'.
[2020-09-15 17:43:18] SECURITY[1264] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-15T17:43:18.925-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="000441904911000",SessionID="0x7f4d482e4338",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.252/57495",ACLName="no_extension_match"
[2020-09-15 17:43:27] NOTICE[1239][C-000042f6] chan_sip.c: Call from '' (37.49.230.252:49999) to extension '00441904911000' rejected because extension not found in context 'public'.
[2020-09-15 17:43:27] SECURITY[1264] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-15T17:43:27.428-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="00441904911000",SessionID="0x7f4d481972d8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37
...

[2020-09-15 17:43:18] NOTICE[1239][C-000042f5] chan_sip.c: Call from '' (37.49.230.252:57495) to extension '000441904911000' rejected because extension not found in context 'public'.
[2020-09-15 17:43:18] SECURITY[1264] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-15T17:43:18.925-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="000441904911000",SessionID="0x7f4d482e4338",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.252/57495",ACLName="no_extension_match"
[2020-09-15 17:43:27] NOTICE[1239][C-000042f6] chan_sip.c: Call from '' (37.49.230.252:49999) to extension '00441904911000' rejected because extension not found in context 'public'.
[2020-09-15 17:43:27] SECURITY[1264] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-15T17:43:27.428-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="00441904911000",SessionID="0x7f4d481972d8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37
...

[2020-08-29 03:20:46] NOTICE[1185][C-000080e2] chan_sip.c: Call from '' (37.49.230.252:60571) to extension '0015441904911041' rejected because extension not found in context 'public'.
[2020-08-29 03:20:46] SECURITY[1203] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-08-29T03:20:46.841-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="0015441904911041",SessionID="0x7f10c405a408",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.252/60571",ACLName="no_extension_match"
[2020-08-29 03:24:02] NOTICE[1185][C-000080e3] chan_sip.c: Call from '' (37.49.230.252:65073) to extension '0016441904911041' rejected because extension not found in context 'public'.
[2020-08-29 03:24:02] SECURITY[1203] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-08-29T03:24:02.667-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="0016441904911041",SessionID="0x7f10c405a408",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/
...

Bible

2020-10-13T06:44:21.356144news0 auth[956]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=admin rhost=37.49.230.238
2020-10-13T06:44:25.395781news0 dovecot[21131]: pop3-login: Aborted login (auth failed, 1 attempts in 4 secs): user=, method=PLAIN, rip=37.49.230.238, lip=95.111.246.42, session=
2020-10-13T06:44:28.401407news0 auth[956]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=admin rhost=37.49.230.238
...

2020-10-13T06:44:21.356144news0 auth[956]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=admin rhost=37.49.230.238
2020-10-13T06:44:25.395781news0 dovecot[21131]: pop3-login: Aborted login (auth failed, 1 attempts in 4 secs): user=, method=PLAIN, rip=37.49.230.238, lip=95.111.246.42, session=
2020-10-13T06:44:28.401407news0 auth[956]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=admin rhost=37.49.230.238
...

Dovecot Invalid User Login Attempt.

"AmooT";tag=3533393765393339313363340132313832313335333935

\[2020-10-02 15:01:13\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-02T15:01:13.624+0200",Severity="Error",Service="SIP",EventVersion="2",AccountID="100",SessionID="0x7f0ffea08d88",LocalAddress="IPV4/UDP/204.8.216.89/5060",RemoteAddress="IPV4/UDP/37.49.230.126/5862",Challenge="096f171f",ReceivedChallenge="096f171f",ReceivedHash="b099bdfad5869da4ae2114a56a2b4299"
\[2020-10-02 15:01:13\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-02T15:01:13.759+0200",Severity="Error",Service="SIP",EventVersion="2",AccountID="100",SessionID="0x7f0ffeab8148",LocalAddress="IPV4/UDP/204.8.216.89/5060",RemoteAddress="IPV4/UDP/37.49.230.126/5862",Challenge="233a417c",ReceivedChallenge="233a417c",ReceivedHash="0017581d14759d4b5ad3a404ed924131"
\[2020-10-02 15:01:13\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-02T15:01:13.783+0200",Severity="Error",Service="SIP",EventVersion="2",Accoun
...

\[2020-10-02 15:01:13\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-02T15:01:13.624+0200",Severity="Error",Service="SIP",EventVersion="2",AccountID="100",SessionID="0x7f0ffea08d88",LocalAddress="IPV4/UDP/204.8.216.89/5060",RemoteAddress="IPV4/UDP/37.49.230.126/5862",Challenge="096f171f",ReceivedChallenge="096f171f",ReceivedHash="b099bdfad5869da4ae2114a56a2b4299"
\[2020-10-02 15:01:13\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-02T15:01:13.759+0200",Severity="Error",Service="SIP",EventVersion="2",AccountID="100",SessionID="0x7f0ffeab8148",LocalAddress="IPV4/UDP/204.8.216.89/5060",RemoteAddress="IPV4/UDP/37.49.230.126/5862",Challenge="233a417c",ReceivedChallenge="233a417c",ReceivedHash="0017581d14759d4b5ad3a404ed924131"
\[2020-10-02 15:01:13\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-02T15:01:13.783+0200",Severity="Error",Service="SIP",EventVersion="2",Accoun
...

[N1.H1.VM1] Port Scanner Detected Blocked by UFW

SIP Server BruteForce Attack

[2020-09-30 18:00:12] NOTICE[1159][C-0000421d] chan_sip.c: Call from '' (37.49.230.201:64644) to extension '12526890745' rejected because extension not found in context 'public'.
[2020-09-30 18:00:12] SECURITY[1198] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-30T18:00:12.866-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="12526890745",SessionID="0x7fcaa045f8f8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.201/64644",ACLName="no_extension_match"
[2020-09-30 18:00:26] NOTICE[1159][C-0000421f] chan_sip.c: Call from '' (37.49.230.201:57391) to extension '712526890745' rejected because extension not found in context 'public'.
[2020-09-30 18:00:26] SECURITY[1198] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-30T18:00:26.237-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="712526890745",SessionID="0x7fcaa04d8d08",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.201/
...

[2020-09-30 18:00:12] NOTICE[1159][C-0000421d] chan_sip.c: Call from '' (37.49.230.201:64644) to extension '12526890745' rejected because extension not found in context 'public'.
[2020-09-30 18:00:12] SECURITY[1198] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-30T18:00:12.866-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="12526890745",SessionID="0x7fcaa045f8f8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.201/64644",ACLName="no_extension_match"
[2020-09-30 18:00:26] NOTICE[1159][C-0000421f] chan_sip.c: Call from '' (37.49.230.201:57391) to extension '712526890745' rejected because extension not found in context 'public'.
[2020-09-30 18:00:26] SECURITY[1198] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-30T18:00:26.237-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="712526890745",SessionID="0x7fcaa04d8d08",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.201/
...

[2020-09-30 18:00:12] NOTICE[1159][C-0000421d] chan_sip.c: Call from '' (37.49.230.201:64644) to extension '12526890745' rejected because extension not found in context 'public'.
[2020-09-30 18:00:12] SECURITY[1198] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-30T18:00:12.866-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="12526890745",SessionID="0x7fcaa045f8f8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.201/64644",ACLName="no_extension_match"
[2020-09-30 18:00:26] NOTICE[1159][C-0000421f] chan_sip.c: Call from '' (37.49.230.201:57391) to extension '712526890745' rejected because extension not found in context 'public'.
[2020-09-30 18:00:26] SECURITY[1198] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-30T18:00:26.237-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="712526890745",SessionID="0x7fcaa04d8d08",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.201/
...

Hellooo

Hellooo

Sep 28 15:49:19 : SSH login attempts with invalid user

 TCP (SYN) 61.223.25.60:58612 -> port 445, len 44

Automatic report - Banned IP Access

134.209.155.5 - - [09/Oct/2020:22:48:18 +0200] "GET / HTTP/1.1" 200 612 "-" "-"

2020-10-10T17:30:16.063312afi-git.jinr.ru sshd[27890]: Failed password for root from 112.85.42.110 port 55938 ssh2
2020-10-10T17:30:19.584523afi-git.jinr.ru sshd[27890]: Failed password for root from 112.85.42.110 port 55938 ssh2
2020-10-10T17:30:23.328907afi-git.jinr.ru sshd[27890]: Failed password for root from 112.85.42.110 port 55938 ssh2
2020-10-10T17:30:23.329077afi-git.jinr.ru sshd[27890]: error: maximum authentication attempts exceeded for root from 112.85.42.110 port 55938 ssh2 [preauth]
2020-10-10T17:30:23.329092afi-git.jinr.ru sshd[27890]: Disconnecting: Too many authentication failures [preauth]
...

Oct 10 12:14:54 root sshd[13427]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=114.242.25.132  user=root
Oct 10 12:14:57 root sshd[13427]: Failed password for root from 114.242.25.132 port 54312 ssh2
...

Oct 10 11:16:15 host1 sshd[1781211]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.166.177.99  user=root
Oct 10 11:16:16 host1 sshd[1781211]: Failed password for root from 188.166.177.99 port 45686 ssh2
Oct 10 11:20:20 host1 sshd[1781585]: Invalid user cyrus from 188.166.177.99 port 53192
Oct 10 11:20:20 host1 sshd[1781585]: Invalid user cyrus from 188.166.177.99 port 53192
...

(sshd) Failed SSH login from 211.253.24.250 (KR/South Korea/-): 3 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD

2020-10-10T05:21:44.944229kitsunetech sshd[13908]: Invalid user site03 from 80.187.102.39 port 6308

$f2bV_matches

Oct 10 14:16:18 inter-technics sshd[20782]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=195.12.137.73  user=root
Oct 10 14:16:20 inter-technics sshd[20782]: Failed password for root from 195.12.137.73 port 34858 ssh2
Oct 10 14:20:33 inter-technics sshd[21013]: Invalid user vcsa1 from 195.12.137.73 port 40594
Oct 10 14:20:33 inter-technics sshd[21013]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=195.12.137.73
Oct 10 14:20:33 inter-technics sshd[21013]: Invalid user vcsa1 from 195.12.137.73 port 40594
Oct 10 14:20:35 inter-technics sshd[21013]: Failed password for invalid user vcsa1 from 195.12.137.73 port 40594 ssh2
...

Lines containing failures of 185.14.186.121
Oct  8 07:28:30 nemesis sshd[20848]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.14.186.121  user=r.r
Oct  8 07:28:33 nemesis sshd[20848]: Failed password for r.r from 185.14.186.121 port 38302 ssh2
Oct  8 07:28:33 nemesis sshd[20848]: Received disconnect from 185.14.186.121 port 38302:11: Bye Bye [preauth]
Oct  8 07:28:33 nemesis sshd[20848]: Disconnected from authenticating user r.r 185.14.186.121 port 38302 [preauth]
Oct  8 07:46:01 nemesis sshd[26636]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.14.186.121  user=r.r
Oct  8 07:46:03 nemesis sshd[26636]: Failed password for r.r from 185.14.186.121 port 36202 ssh2
Oct  8 07:46:04 nemesis sshd[26636]: Received disconnect from 185.14.186.121 port 36202:11: Bye Bye [preauth]
Oct  8 07:46:04 nemesis sshd[26636]: Disconnected from authenticating user r.r 185.14.186.121 port 36202 [preaut........
------------------------------

srv02 DDoS Malware Target(80:http) ..

Oct 10 09:00:11 NPSTNNYC01T sshd[13910]: Failed password for root from 122.51.51.244 port 41014 ssh2
Oct 10 09:04:10 NPSTNNYC01T sshd[14133]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.51.51.244
Oct 10 09:04:12 NPSTNNYC01T sshd[14133]: Failed password for invalid user deploy from 122.51.51.244 port 56290 ssh2
...

 TCP (SYN) 71.6.232.5:44401 -> port 3306, len 44

 UDP 5.8.10.202:60000 -> port 161, len 87