Jul 15 16:12:48 eola postfix/smtpd[13332]: connect from unknown[37.49.230.212]
Jul 15 16:12:48 eola postfix/smtpd[13332]: lost connection after AUTH from unknown[37.49.230.212]
Jul 15 16:12:48 eola postfix/smtpd[13332]: disconnect from unknown[37.49.230.212] ehlo=1 auth=0/1 commands=1/2
Jul 15 16:12:48 eola postfix/smtpd[13606]: connect from unknown[37.49.230.212]
Jul 15 16:12:49 eola postfix/smtpd[13606]: lost connection after AUTH from unknown[37.49.230.212]
Jul 15 16:12:49 eola postfix/smtpd[13606]: disconnect from unknown[37.49.230.212] ehlo=1 auth=0/1 commands=1/2
Jul 15 16:12:49 eola postfix/smtpd[13332]: connect from unknown[37.49.230.212]
Jul 15 16:12:49 eola postfix/smtpd[13332]: lost connection after AUTH from unknown[37.49.230.212]
Jul 15 16:12:49 eola postfix/smtpd[13332]: disconnect from unknown[37.49.230.212] ehlo=1 auth=0/1 commands=1/2
Jul 15 16:12:50 eola postfix/smtpd[13606]: connect from unknown[37.49.230.212]
Jul 15 16:12:50 eola postfix/smtpd[13606]........
-------------------------------

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

Automatic report - Banned IP Access

2019-10-10T13:57:01.175468mail01 postfix/smtpd[27241]: warning: unknown[43.240.65.236]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
2019-10-10T13:58:50.213669mail01 postfix/smtpd[28031]: warning: unknown[43.240.65.236]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
2019-10-10T13:59:22.193040mail01 postfix/smtpd[30331]: warning: unknown[43.240.65.236]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

Invalid user ubuntu from 213.135.230.147 port 50887

IP Ban Report : https://help-dysk.pl/wordpress-firewall-plugins/ip/179.162.146.230/ 
 BR - 1H : (271)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : BR 
 NAME ASN : ASN18881 
 
 IP : 179.162.146.230 
 
 CIDR : 179.162.128.0/19 
 
 PREFIX COUNT : 938 
 
 UNIQUE IP COUNT : 4233472 
 
 
 WYKRYTE ATAKI Z ASN18881 :  
  1H - 2 
  3H - 6 
  6H - 13 
 12H - 27 
 24H - 48 
 
 DateTime : 2019-10-10 05:42:53 
 
 INFO : Port Scan TELNET Detected and Blocked by ADMIN  - data recovery

2019-10-10T12:23:54.516228MailD postfix/smtpd[17061]: warning: unknown[116.178.69.216]: SASL LOGIN authentication failed: authentication failure
2019-10-10T12:23:57.561086MailD postfix/smtpd[17061]: warning: unknown[116.178.69.216]: SASL LOGIN authentication failed: authentication failure
2019-10-10T12:24:01.587343MailD postfix/smtpd[17061]: warning: unknown[116.178.69.216]: SASL LOGIN authentication failed: authentication failure

Triggered by Fail2Ban at Vostok web server

2019-10-10T10:02:25.027926abusebot.cloudsearch.cf sshd\[12934\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=23.129.64.210  user=root

Automatic report - Banned IP Access

Direct File Inclusion, attempted download protected site configuration file
GET /index.php?option=com_macgallery&view=download&albumid=../../configuration.php
GET /components/com_hdflvplayer/hdflvplayer/download.php?f=../../../configuration.php

Automatic report - Port Scan Attack

SSH brutforce

Oct 10 01:50:21 hanapaa sshd\[6361\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=blog.jungleland.co.id  user=root
Oct 10 01:50:22 hanapaa sshd\[6361\]: Failed password for root from 139.59.249.255 port 25284 ssh2
Oct 10 01:54:59 hanapaa sshd\[6708\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=blog.jungleland.co.id  user=root
Oct 10 01:55:01 hanapaa sshd\[6708\]: Failed password for root from 139.59.249.255 port 64660 ssh2
Oct 10 01:59:29 hanapaa sshd\[7759\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=blog.jungleland.co.id  user=root

Oct 10 13:59:10 MainVPS sshd[15537]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.151  user=root
Oct 10 13:59:12 MainVPS sshd[15537]: Failed password for root from 222.186.175.151 port 16546 ssh2
Oct 10 13:59:29 MainVPS sshd[15537]: error: maximum authentication attempts exceeded for root from 222.186.175.151 port 16546 ssh2 [preauth]
Oct 10 13:59:10 MainVPS sshd[15537]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.151  user=root
Oct 10 13:59:12 MainVPS sshd[15537]: Failed password for root from 222.186.175.151 port 16546 ssh2
Oct 10 13:59:29 MainVPS sshd[15537]: error: maximum authentication attempts exceeded for root from 222.186.175.151 port 16546 ssh2 [preauth]
Oct 10 13:59:38 MainVPS sshd[15567]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.151  user=root
Oct 10 13:59:39 MainVPS sshd[15567]: Failed password for root from 222.186.175.151 port

Port 1433 Scan

2019-10-10T11:49:41.238026shield sshd\[27936\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=52.175.29.230  user=root
2019-10-10T11:49:43.316491shield sshd\[27936\]: Failed password for root from 52.175.29.230 port 34802 ssh2
2019-10-10T11:54:34.826761shield sshd\[28615\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=52.175.29.230  user=root
2019-10-10T11:54:36.795209shield sshd\[28615\]: Failed password for root from 52.175.29.230 port 47800 ssh2
2019-10-10T11:59:28.215242shield sshd\[28967\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=52.175.29.230  user=root