Windows Memory Integrity, also known as Hypervisor-protected Code Integrity (HVCI), is a security feature in Windows operating systems designed to prevent malicious code from being injected into high-security processes. It operates by running kernel-mode code within a virtualized environment, effectively isolating it from potential threats. An example scenario involves preventing a driver from loading if it has been tampered with or does not meet specific security requirements.
The primary importance of this security feature lies in its ability to harden the system against rootkits and other sophisticated malware that target the kernel. By enforcing strict code integrity checks, it significantly reduces the attack surface available to malicious actors. Historically, kernel-level compromises have been among the most difficult to detect and remediate, making this proactive protection mechanism valuable. The benefit is increased system security and a reduced risk of persistent malware infections.
