crackmes.one

CrackNotMe's CrackmesForBeginners (CFB) #9

Author:
CrackNotMe

Language:
C/C++

Upload:
2026-07-12 11:04

Platform:
Windows

Difficulty:
3.0

Quality:
4.0

Arch:
x86-64

Downloads:
39

Size:
242.00 KB

Writeups:
0

Comments:
0

Description

This is the ninth challenge from the Crackmes for Beginners (CFB) series. Sometimes, the easiest way to break a lock is to replace the guard. This binary is entirely devoid of validation logic; it relies strictly on an external security module that isn't included in the package. Your goal is to analyze the binary's expected imports, understand the classic DLL Side-Loading vulnerability, and write your own malicious DLL from scratch to hijack the execution flow and force the program to grant you access.