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Hexcode 08-20-2020 01:53

Debugging Problem
 
Hi guys, I have a big problem where I can't find a solution or an idea, I try to crack a program but the idea is the next, when I change even a letter in the strings with Resource Hacker for example and save the changes, when I start the program becomes instant DEMO VERSION and a WATERMARK appear when i save a photo,this watermark i don't find ,or how i can remove
I'm waiting for an opinion or an idea on how I could get over this check.

Turkuaz 08-20-2020 13:42

Program must do integrity check like crc checj

user1 08-20-2020 15:22

use loader injectors

Hexcode 08-20-2020 15:50

I found what is the problem ,she use API to draw a watermark and yeah a integrity check

Turkuaz 08-20-2020 20:04

Quote:

Originally Posted by user1 (Post 121017)
use loader injectors

Is there any tutorial about loaders and loader injectors for win32 and .net also?

countryboy 09-23-2021 05:16

FILE CRC, and FILE Certificate ...
 
Quote:

Originally Posted by Hexcode (Post 121013)
Hi guys, I have a big problem where I can't find a solution or an idea, I try to crack a program but the idea is the next, when I change even a letter in the strings with Resource Hacker for example and save the changes, when I start the program becomes instant DEMO VERSION and a WATERMARK appear when i save a photo,this watermark i don't find ,or how i can remove
I'm waiting for an opinion or an idea on how I could get over this check.

Hi Hexcode, the program is checking it's File Certificate to see if changes to File, or it's doing a CRC Check of code for changes. Look for code where exe BASE loading offset is used as address to start CRC Check.

It is possible to crack the code that calls the Win Verify Trust Windows Function, as I have done this before, or you can use a Loader to Patch it in memory unless it also does a Memory CRC check.
I POSTED A LOADER on exetools ...
https://forum.exetools.com/showthread.php?t=19945

You can also remove the Certificate from a File, and replace it with one that contains the Cracked File CRC.

After cracking a file Certificate is XXXX !
Right Click File select properties to check Certificate.


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