game security, hypervisor dev
& anti-cheat evasion.

Deconstructing ObRegisterCallbacks mechanics, inspecting how access masks mutate across handle operations, evaluating kernel memory primitives (attach vs copy vs manual walk), and writing disciplined IOCTLs.

Resolving DirectoryTableBase dynamically across Windows builds, walking 4-level x86_64 page tables, and navigating the performance and detection realities under VBS/HVCI.

Leveraging signed vulnerable drivers (gdrv.sys, RTCore64.sys) to bypass Driver Signature Enforcement (DSE), manually map custom unsigned kernel drivers, and clear MmUnloadedDrivers telemetry.

Executing code in arbitrary game processes without creating suspicious threads. Utilizing Special Kernel APCs, KTHREAD Alertable states, and Thread Context Rsp/Rip manipulation.

Deconstructing PatchGuard (KPP) verification routines in ntoskrnl.exe, understanding CR0.WP, IDT/GDT monitoring, and safely bypassing Driver Signature Enforcement (CI.dll).

Understanding Intel VT-x CPU virtualization extensions, detecting VMX capabilities via CPUID and IA32_FEATURE_CONTROL MSR, initializing VMXON regions, and entering VMX root operation.

Configuring the 6 VMCS logical field categories: Guest-State, Host-State, VM-Execution controls, VM-Exit controls, VM-Entry controls, and VM-Exit Information.

Two-dimensional address translation with Intel EPT, implementing stealth read/write vs execute page splitting (Shadow Hooking), and resolving EPT Violations.

Designing a stealth communication interface using the VMCALL instruction, passing commands directly from user-mode to VMX root mode without creating driver handles or IOCTLs.

How to run your custom VT-x hypervisor alongside Windows 11 Virtualization-Based Security (VBS), Core Isolation, and nested Hyper-V without system crashes or blue-screens.

How anti-cheat engines and anti-rootkit scanners detect hypervisors via RDTSC delta measurement, and implementing hardware-assisted TSC offsetting and VM-Exit timing fuzzing.

How Windows Hyper-V discovers hypervisor features via CPUID leaf 0x40000000, implementing Top-Level Functional Specification (TLFS) synthetic MSRs, and nested coexistence.

How Vanguard and BattlEye use Non-Maskable Interrupts (KeSendNmi) and DPCs to profile executing thread stacks, and techniques to maintain synthetic execution frames.

How anti-cheats monitor hardware debug registers (DR0-DR7) on thread context switches, limitations of Trap Flag single-stepping, and implementing undetectable EPT breakpoints.

Setting up the TianoCore EDK II build environment, understanding the UEFI boot phases (SEC, PEI, DXE, BDS), and developing a standalone DXE Driver.

How UEFI allocates memory descriptors, hooking gBS->ExitBootServices to intercept OS bootloader execution, and carving out persistent hypervisor host memory.

Pattern scanning winload.efi in pre-boot memory, intercepting OslArchTransferToKernel, and virtualizing the processor before ntoskrnl.exe initializes.

How PCIe Direct Memory Access (DMA) cards (CaptainDMA, Squirrel, LeetDMA) read and write physical RAM over the PCIe bus without executing code on the target machine.

How anti-cheats enumerate the PCI bus to detect default FPGA device signatures, cloning donor network/audio cards, and crafting stealth PCIe Configuration Space firmware in Vivado.

How anti-cheats (Vanguard / FACEIT) leverage IOMMU (Intel VT-d / AMD-Vi) hardware page tables to restrict PCIe DMA memory reads, and techniques for memory remapping.

Building an asynchronous Scatter/Gather physical memory reader in C++ with PCILeech VMM DLL, streaming 250+ entity states at 144 FPS to a secondary display.

Reverse-engineering Unreal Engine (UE4/UE5) and Unity (IL2CPP) data structures, dumping GNames, GObjects, and GWorld, and defeating compile-time SDK encryption.

How C++ polymorphism works in binary memory, locating and swapping Virtual Method Tables (VMT / VTable), and intercepting DirectX 11/12 Present calls for internal overlays.