DNS RPZ Firewall

Stop Threats at the Root


Safeguard your digital infrastructure with Malware Patrol’s DNS RPZ Firewall. DNS firewalls enhance your security posture and defend against malicious attacks, unauthorized access, and data breaches. Stay one step ahead of cybercriminals and keep your organization’s data safe “at the root.”

Malware Patrol threat intelligence on malware, ransomware, phishing, cryptomining is packaged into DNS zones ready to be consumed by a DNS resolver. The DNS Firewall functionality then uses this data to block requests to these domains, keeping users safe from these online threats.

No changes to the existing infrastructure or installation of software in the endpoints are required. A DNS Firewall is a transparent, fast and reliable mechanism that enables an additional layer of protection for users and devices connected to the Internet.



– Command-and-Control Server Domains
– Cryptominers
– DGAs
– DNS-over-HTTPS Servers
– Malware & Ransomware
– Phishing
Add-on for an additional fee: Scam Domains



– Updated every 5 minutes
– Automatic transfers (AXFR/IXFR)
– Cisco Umbrella domain ranking-filtered zones
– Configure and forget


Watch our configuration guide video with step-by-step instructions for setting up a DNS RPZ Firewall.

A written version of the guide is available on our Tech Support page.


  • Easy to install and maintain, no need for additional hardware or topology changes

  • Mitigate at the root during name resolution

  • Granular protection against the most common attacks, including malware, ransomware, and phishing

  • Prevent data exfiltration

  • Identify infected devices

  • Free up your security and tech support teams by preventing machine compromises

  • Educate end users by redirecting them to a walled garden whenever they try to reach a malicious website

  • May reduce cyber insurance premiums


It can be complicated to restrict access at the DNS level. While it is usually without many issues that you can block C2s, DGAs, and phishing sites, malware poses some problems. That is because many legitimate and very popular sites unknowingly host malware. These include Dropbox, Google Docs, GitHub, and many others. When administrators or service providers block access to these sites, many of which are used for work, it can be very problematic. This is why granularity is key.

A Zone for Each Threat Type

Malware Patrol offers seven separate response policy zones. With a zone for each threat type, it is easier to maximize threat coverage while minimizing the impact on users.

Each zone can be implemented – or not – depending on your needs.

Whitelist and Filter Out Top Domains

Simple web interface that allows customers to whitelist specific domains.

And, to further help customers avoid blocking high traffic sites, Malware Patrol includes zone files with the top 25,000, 100,000, and 1,000,000 Cisco Umbrella domains removed. The Cisco Umbrella classification is updated weekly and applied seamlessly.

Custom Walled Garden

You can use our – walled garden – to send your users to when the try to resolve a malicious domain. Or, you can configure your company’s own page.

Malware Patrol is always on the forefront of the latest threats. Their data helps me to better understand the landscape of cyber attacks.

Vice President, Threat Intelligence

If you’re looking for a top-notch threat intelligence provider, you can’t go wrong with Malware Patrol.

Security Analyst

Malware Patrol has a great team and offers a comprehensive set of data feeds designed to keep you one step ahead of the bad guys.

Lead Cyber Security Analyst

The Extra Layer Of Protection You Need

Talk with our experts and see how you can take advantage of our data