This report examines Hypervisor-Protected Code Integrity (HVCI)
If Lodestone could do this, every system claiming HVCI protection was vulnerable. Secure Enclaves? Bypassed. Credential Guard? A joke. The entire Windows security model, rebuilt around virtualization, was standing on a trapdoor. Hvci Bypass
HVCI leverages Intel VT-x or AMD-V to run the Windows kernel as a guest under a hypervisor (the Virtualization-Based Security, or VBS). The hypervisor enforces strict page permissions using Second Level Address Translation (SLAT) . Change a page from RWX to RX (or vice versa)
: Instead of disabling HVCI, a bypass can install a custom hypervisor that places the entire Windows OS inside a virtual machine. This allows an attacker at rebuilt around virtualization
Bypassing Hypervisor-protected Code Integrity (HVCI) is a complex task because it enforces security at the hypervisor level, making code pages read-execute only ( ) and data pages non-executable.
, which are not always protected by the hypervisor's secure world (VTL1). System Management Mode (SMM) Attacks