Feb 27 08:01:14 grey postfix/smtpd\[8239\]: NOQUEUE: reject: RCPT from unknown\[185.143.223.168\]: 554 5.7.1 Service unavailable\; Client host \[185.143.223.168\] blocked using truncate.gbudb.net\; http://www.gbudb.com/truncate/ \[185.143.223.168\]\; from=\ to=\ proto=ESMTP helo=\<\[185.143.223.170\]\>
...

Feb 27 07:04:02 localhost sshd\[31654\]: Invalid user sport from 139.99.40.27 port 59580
Feb 27 07:04:02 localhost sshd\[31654\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.99.40.27
Feb 27 07:04:03 localhost sshd\[31654\]: Failed password for invalid user sport from 139.99.40.27 port 59580 ssh2
Feb 27 07:13:42 localhost sshd\[31890\]: Invalid user butter from 139.99.40.27 port 36794
Feb 27 07:13:42 localhost sshd\[31890\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.99.40.27
...

2020-02-27T08:00:02.610389  sshd[16406]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.150  user=root
2020-02-27T08:00:03.982133  sshd[16406]: Failed password for root from 222.186.175.150 port 59670 ssh2
2020-02-27T08:00:08.294903  sshd[16406]: Failed password for root from 222.186.175.150 port 59670 ssh2
2020-02-27T08:00:02.610389  sshd[16406]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.150  user=root
2020-02-27T08:00:03.982133  sshd[16406]: Failed password for root from 222.186.175.150 port 59670 ssh2
2020-02-27T08:00:08.294903  sshd[16406]: Failed password for root from 222.186.175.150 port 59670 ssh2
...

Feb 26 20:59:03 wbs sshd\[20239\]: Invalid user infowarelab from 41.207.184.182
Feb 26 20:59:03 wbs sshd\[20239\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=41.207.184.182
Feb 26 20:59:05 wbs sshd\[20239\]: Failed password for invalid user infowarelab from 41.207.184.182 port 45712 ssh2
Feb 26 21:05:27 wbs sshd\[20736\]: Invalid user ts3bot from 41.207.184.182
Feb 26 21:05:27 wbs sshd\[20736\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=41.207.184.182

02/27/2020-08:14:32.051381 54.200.182.16 Protocol: 6 SURICATA TLS invalid record/traffic

Feb 27 07:15:41 srv-ubuntu-dev3 sshd[88291]: Invalid user deploy from 59.45.99.99
Feb 27 07:15:41 srv-ubuntu-dev3 sshd[88291]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=59.45.99.99
Feb 27 07:15:41 srv-ubuntu-dev3 sshd[88291]: Invalid user deploy from 59.45.99.99
Feb 27 07:15:43 srv-ubuntu-dev3 sshd[88291]: Failed password for invalid user deploy from 59.45.99.99 port 34287 ssh2
Feb 27 07:17:30 srv-ubuntu-dev3 sshd[88448]: Invalid user shiyang from 59.45.99.99
Feb 27 07:17:30 srv-ubuntu-dev3 sshd[88448]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=59.45.99.99
Feb 27 07:17:30 srv-ubuntu-dev3 sshd[88448]: Invalid user shiyang from 59.45.99.99
Feb 27 07:17:32 srv-ubuntu-dev3 sshd[88448]: Failed password for invalid user shiyang from 59.45.99.99 port 38244 ssh2
...

Feb 27 07:49:19 MK-Soft-VM7 sshd[29138]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.203.36.154 
Feb 27 07:49:21 MK-Soft-VM7 sshd[29138]: Failed password for invalid user wordpress from 159.203.36.154 port 60529 ssh2
...

unauthorized connection attempt

Honeypot attack, port: 81, PTR: 96-73-111-201-static.hfc.comcastbusiness.net.

Feb 27 08:15:22 domagoj sshd\[12114\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.169.192  user=root
Feb 27 08:15:24 domagoj sshd\[12114\]: Failed password for root from 222.186.169.192 port 59942 ssh2
Feb 27 08:15:41 domagoj sshd\[12116\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.169.192  user=root
Feb 27 08:15:43 domagoj sshd\[12116\]: Failed password for root from 222.186.169.192 port 10400 ssh2

Honeypot attack, port: 445, PTR: PTR record not found

2020-02-27 08:34:31 dovecot_login authenticator failed for \(User\) \[45.142.195.6\]: 535 Incorrect authentication data \(set_id=madge@no-server.de\)
2020-02-27 08:34:33 dovecot_login authenticator failed for \(User\) \[45.142.195.6\]: 535 Incorrect authentication data \(set_id=madge@no-server.de\)
2020-02-27 08:34:35 dovecot_login authenticator failed for \(User\) \[45.142.195.6\]: 535 Incorrect authentication data \(set_id=madge@no-server.de\)
2020-02-27 08:34:45 dovecot_login authenticator failed for \(User\) \[45.142.195.6\]: 535 Incorrect authentication data \(set_id=kathie@no-server.de\)
2020-02-27 08:35:02 dovecot_login authenticator failed for \(User\) \[45.142.195.6\]: 535 Incorrect authentication data \(set_id=kathie@no-server.de\)
...

2020-02-27 1j7C25-00052A-5z H=flow.yojaana.com \(flow.porkaspk.com\) \[134.73.51.180\] rejected **REMOVED** : REJECTED - You seem to be a spammer!
2020-02-27 1j7C9H-00052l-5A H=flow.yojaana.com \(flow.porkaspk.com\) \[134.73.51.180\] rejected **REMOVED** : REJECTED - You seem to be a spammer!
2020-02-27 1j7CAA-00052t-2X H=flow.yojaana.com \(flow.porkaspk.com\) \[134.73.51.180\] rejected **REMOVED** : REJECTED - You seem to be a spammer!

1582782458 - 02/27/2020 06:47:38 Host: 183.82.96.178/183.82.96.178 Port: 445 TCP Blocked

Feb 27 08:02:41 sso sshd[17493]: Failed password for root from 222.186.175.163 port 1656 ssh2
Feb 27 08:02:44 sso sshd[17493]: Failed password for root from 222.186.175.163 port 1656 ssh2
...