![]() ![]() ![]() In order to find where the program checks the serial number, we will search for the referenced strings used by the program. The file will load and you will see a window like the following: In Ollydbg, go to File->Open and select FAKE.exe. Let’s open up Ollydbg, and use it to see if we can make “123456789” a correct serial number! I typed “123456789” into the box and clicked “Enter Serial” and was presented with the following: Not very interesting, but clicking on the “Register” menu item reveals a registration dialog: If you’re following along, download FAKE.exe along with Ollydbg.įirst, I will execute FAKE.exe to see what the program looks like and what it does: The crackme that I will be walking through is called FAKE.exe. This tool is for the Windows platform and is free to download. ![]() The specific tool I will be using is Ollydbg for my debugger. A number of tools will be used for this walkthrough, including a debugger and a hex editor. With this post, I will be stepping through a “crackme,” or a program developed for the sole purpose of bypassing software security mechanisms. ![]()
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