WFDns

WFDns is a component within the Windows networking stack responsible for handling Domain Name System (DNS) resolution. It is part of the Windows Filtering Platform (WFP) and acts as a filter driver that intercepts DNS query and response traffic. By observing this traffic, WFDns can enforce policies related to DNS usage, such as blocking access to specific domains or redirecting DNS requests. This filtering capability allows for various network security and management scenarios. For instance, it can be used by security software to prevent malware from communicating with its command-and-control servers by blocking DNS lookups to known malicious domains. It also plays a role in parental controls or corporate network policies that restrict access to certain websites. WFDns operates at a low level within the operating system, enabling it to intercept and examine network packets before they are processed by higher-level applications. This deep integration allows for granular control over DNS traffic. The specific implementation and features of WFDns can evolve with different versions of Windows.