Author:
jochen_

Language:
Assembler

Upload:
5:23 PM 11/15/2020

Download

Platform
Windows

Difficulty:
4.0

Quality:
3.8

Arch:
x86-64

Description

When not running under a debugger it shows a MessageBox saying "Everythings seems fine (^_^)..No debugger Detected !!" Your objective is to make the MessageBox show even when running under a Debugger. You can patch the file if you can show in the end how you found the solution with a simple write up on how you did it. The ReverseMe only runs on the 3 latest builds of Windows 10. 1909 2004 and 20H2. The ReverseMe was coded to NOT run under a VM !! If you want to use a VM, you'll have to bypass one more extra check :)

• Comments
• Solutions

DARKCODER on 1:59 PM 11/19/2020: Crackme didn't work. Error on command 'cmpsd' - EXCEPTION_ACCESS_VIOLATION. Win10, 64

jochen_ on 12:49 PM 11/20/2020: That's because of the debugger ! It doesn't run in aVM either

jeffli6789 on 4:23 AM 11/21/2020: This is a GREAT challenge! I will make a writeup for it

x0r19x91 on 3:05 AM 12/01/2020: Great Challenge!

RCEwithPeter on 2:45 PM 12/22/2021: Sadly, the crackme doesn't show any message box; even when not in a VM and not having a debugger active. Windows 10 2004 (19041.1348).

jochen_ on 1:20 PM 12/29/2021: Maybe it's because of your AV ? None else had any problems with it ..

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