The article introduces Windows kernel exploitation and explains how to build a research lab using tools like WinDbg and the HackSys Extreme Vulnerable Driver (HEVD) to study kernel vulnerabilities and exploit development.
Won’t Fix: Kernel DoS in clfs.sys via NULL FastMutex Dereference
The article examines a Windows kernel bug in clfs.sys where a NULL pointer is dereferenced during fast mutex acquisition, causing a kernel crash and denial of service due to improper validation of a FAST_MUTEX pointer.
WSL, COM Hooking, & RTTI
The article demonstrates how to hook COM methods in Windows Subsystem for Linux by leveraging C++ RTTI metadata to reconstruct class layouts and locate virtual methods, enabling precise COM instrumentation without symbols.
Peeling Back the Socket Layer: Reverse Engineering Windows AFD.sys
The research reverse-engineers Windows AFD.sys, showing how TCP sockets can be created, connected, and used by sending handcrafted IOCTL requests directly to the kernel driver—completely bypassing the Winsock networking API.
Reverse Engineering the Tapo C260 and Tapo Discovery Protocol v2
The research reverse-engineers the TP-Link Tapo C260 camera firmware and analyzes Tapo Discovery Protocol v2. By dumping and decrypting the filesystem, the author reconstructs protocol logic and maps the device’s network attack surface.
Ghost in the PPL – LSASS Memory Dump
The article explains a technique for dumping memory from the protected LSASS process (PPL). It analyzes limitations of PPL protection and demonstrates how MiniDumpWriteDump and existing process handles can be used to extract credential data.
How Kernel Anti-Cheats Work: A Deep Dive into Modern Game Protection
The article explains how modern kernel-level anti-cheat systems work, describing their driver architecture, callbacks, memory monitoring, and detection methods used to identify cheats that operate at the same privilege level as the operating system kernel.
Reverse engineering undocumented Windows Kernel features to work with the EDR
AntivirusBypassingDefenderEDREventlogkernelMalwareProtectionReverse EngineeringSecuritywinapiwinapiWinDBGwindows
This article demonstrates how to reverse engineer the Windows 11 kernel to understand undocumented internals behind memory operations and ETW Threat Intelligence events, helping security engineers improve EDR telemetry and detect remote process memory writes.
Hacking a Bluetooth Printer Server: GATT to UART Adapter?
Reverse engineering a Bluetooth printer server reveals multiple security flaws, including exposed debug interfaces and insecure GATT services, enabling unauthenticated remote code execution with root privileges via Bluetooth or network access.
Blinkenlights 2.0: Reverse Engineering a Smartwatch via Screen Signals
Reverse engineering a cheap smartwatch and reviving the classic “blinkenlights” attack to extract firmware through screen update patterns, revealing weaknesses in OTA update mechanisms, BLE communication, and embedded device security design.