crackmes.one

owo_whats_this's Very Special Number v1

Author:
owo_whats_this

Language:
C/C++

Upload:
11:42 PM 03/12/2020

Level:
2

Platform
Unix/linux etc.

Description

~CHALLENGES~ EM - Very easy mode: patch executable to make all numbers the special number. NM - Normal mode: step through with GDB and extract Special Number from memory. NM2 - Normal mode 2: Do not look at executable at all. Solve by writing a program to brute force the solution. HM - Hard(er) mode: Do not look at memory or brute force. Solve by reverse engineering the assembly instructions.