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mattheig

Simple CrackMe #2 - Find The Missing Key

Question

mattheig
Posted (edited)

Language : C++
Platform : Windows x86
OS Version : Windows
Packer / Protector none

Description

Gold: A Simple CrackMe Solve the missing key.

Bronze: If u don't find key - Patch it.

 Screenshot

I5M0aOt.png

Crackke.exe

Edited by mattheig (see edit history)

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Mizre

img%5D

Started with searching all text strings for Unregistered then placed a BP on the first call prior to the badboy at that location

Breakpoint-this-call.jpg

Some strange string is shown

strange-string.jpg

A little further down there is a loop which reiterates the characters in the correct order to give the password

the-magic.jpg

 

Spoiler

The password is : find_me_if_you_can

It was a good exercise for a newbie like me thank you. I realise that patching also achieves the same effect as registering but for some serial fishing is another option. As the great Lena 151 always said "There are many ways to attack a target"

Edited by Mizre
Add walkthrough to the solution (see edit history)

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Bidasci

This program was very easy to solve without the key. All you have to do is rename one of the JNE to JMP and it would work. Created a patch for the file.

1gzFinR.png

Download for a patch is in the attached files, the patch was created by dUP2.

simple.crackme.#2.patch.exe

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Rever7eR

serial : find_me_if_you_can

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