This blog post introduces QBDL (QuarkslaB Dynamic Loader) as well as a use case which runs NVIDIA NGX SDK under Linux. You can take a look at the project on Github: https://github.com/quarkslab/QBDL .

This article aims to present a simple use of our Dynamic Binary Instrumentation framework QBDI which has recently been publicly released following a talk at 34C3. We will resolve, step by step, a CTF challenge by analyzing an obfuscated binary using QBDI, thus showcasing some of the nice features it offers. This blog post was written last year during my internship at Quarkslab, where I discovered the wonderful (but not so simple) world of Dynamic Binary Instrumentation.