crackmes.one

Writeup for crack the points

Author: SenorGPT
Date: 2025-12-17 11:54
Summary: Patch/trainer-style challenge: the program prints "Your count points is %d" with a hard-coded zeroed value. I located the call site in x64dbg/Ghidra and wrote a Python trainer that launches the process suspended, computes moduleBase + RVA, and patches the code to load a user-chosen value into EDX before the printf call. To make the patch robust, I used a trampoline and an allocated code cave (VirtualAllocEx) instead of guessing free space in .text.

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