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Country IP Blocking | Harden System Security

Country IP Blocking - Harden Windows Security GitHub repository


Targeted Lists

The Harden System Security App uses the newest range of IPv4 and IPv6 addresses of State Sponsors of Terrorism and OFAC Sanctioned Countries, directly from official IANA sources repository, then creates 2 rules (inbound and outbound) for each list in Windows firewall, completely blocking connections to and from those countries.

Once you have those Firewall rules added, you can use this method to see if any of the blocked connections were from/to those countries.

Note

Threat actors can use VPN, VPS etc. to mask their originating IP address and location. So don't take this category as the perfect solution for network protection.


Individual Country IP Blocking

Harden System Security Country IP Blocking page


You can use this feature to block individual countries in Windows Firewall. Simply search for a country's name in the list and block/unblock all of its IPv4 and IPV6 ranges in just a few seconds.