Maurice's Blog

In the last post I presented my multi agent decompilation setup for MW2, almost framed as a scream for help.

As a little side project, I decided to put my Claude Max sub to good use and decompile Call of Duty: Modern Warfare 2 (2009).

Talk at Navaja Negra 2025 This technical presentation explores the inner workings of Denuvo Anti-Tamper, one of the gaming industry’s most widely deployed DRM solutions.

Talk at Navaja Negra 2024 Modern software systems are becoming increasingly complex, making thorough analysis a daunting task.

I am currently working on an emulation environment similar to Qiling.

Guest lecture at Ruhr-Universität Bochum (in german) Moderne Kopierschutzsysteme sind heutzutage so fortschrittlich, dass klassisches Reverse Engineering bei deren Analyse oftmals an seine Grenzen stößt.

When I announced my Black Ops 3 integrity bypass, someone commented that my research was not impressive and I should try analyzing Denuvo instead.

Call of Duty: Black Ops 3 is protected by a DRM that, among other things, protects the integrity of the game’s code at runtime.

I recently started to experiment with hypervisors and their use for bypassing anti-cheat or anti-tampering systems.

Thanks to Rektinator and TwistedFate for helping me solve this challenge.

For our graduation-party at school two years ago, a friend of mine, Olrik, and I decided to play the Nyan Cat theme on all PCs at school.

After having started to use libraries like libpcap or WinDivert, I got curious about low-level networking protocols like Ethernet, IP, ICMP, ARP, TCP or UDP.

A few years ago, I became aware of a security issue in most Call of Duty games.