Category: anti-debugging technique

Beyond Process and Object Callbacks: An Unconventional Method

Overview In this article, I wanted to introduce a fun approach to performing functions similar to those enabled by Windows Object Callbacks but through an alternative means. It’s well known that anti-malware, anti-cheat, and generic monitoring tools on Windows systems often use these callbacks. However, their usability is limited to parties with signed modules, and […]

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Usermode Debugger Check Prevention

It’s easy enough to use OllyDbg or any other debugger to bypass debugger checks, but any sort of anti-debugging technique that utilizes the time stamp counter such as QueryPerformanceCounter, GetTickCount, and others, can be bypassed by setting the 2nd bit in control register 4 (CR4) which disables the TimeStamp Counter from working for applications operating […]

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