QBDI vs TritonDSE against a VM: who will be the fastest?

Introduction The 3rd edition of the Jeanne d'Hack CTF took place on January 30–31, 2026, and I had the opportunity to beta test the reverse challenges. Challenges are based on a main binary, providing a kind of API to interact with the user (print content on screen, ask for question depending various choices, etc...), in an interactive console-mode game. Each level comes as a separate library. This blogpost will present two solutions, one with TritonDSE and the other with QBDI, to solve the last...