OK, let’s start:
First
of all, you have to run the game you want to crack, without the CD. The
game, doesn’t work of course, BUT a window pops up, telling you an
error message. This error message will help you to crack the game so, you’ve got to remember it.
For example:
Please
insert the - CD, or: You need the CD to play the - . ( -, is thegame
you want to crack). Anyway, if you can’t remember it,write it, in a
little piece of paper. Now, run Win32Dasm , and on the toolbar, press
the first little button on the left, OR, go to Disassembler
->Open file to Disassemble.
A menu will pop up. Select the exe which you want to crack. The disassemble, will take few minutes so,
OK,
it finished its process. Now, in your screen, there is a strange text,
and we can’t understand anything of course. Don’t worry, the only thing
we have to do, ( If you want, you can change the font), is to click on
the String Data References , the button next to the print button
(Strn.REF). You can see a window which is called String Data Items .
Scroll down, and try tofind
the game’s
error message. When you’ll find it , double click on it , and
then,close the window, to go back to the Win32Dasm text. As you can see
you are somewhere in the CD check routine. This is the message’s place.
Now
comes the interesting and difficult part, so, be careful. We don’t know
what all this mean, BUT we must know the @ offset ofevery call and jump
command. Write down , every call and jump @ offset number. (You have to
be sure, that the OPBAR change its used color to green). You need the
number behind the @offset without the h.
Let’s go to Hiew.
HIEW:
To move up and down, use the cursor keys.
Start
HIEW. exe. In the HIEW directory, there is a list of exes and programs.
Go to the directory, which you saved the game’s exe, we want to crack,
and click on the exe. Click F4,and then, a menu will pop up, with 3
words. Text, Hex, and Decode. Click on Decode, and now, we can
understand the list of numbers.Click F5, and you can now enter the
number, we wrote down, in Win32Dasm. Type it, and you will be placed at
the number’s place. The cursor is placed on a command.
Before I’ll
continue, I want to explain you something. For example, if the command
where our cursor is placed, is E92BF9BF74, means that it is 5
bytes.Every 2 numbers, are one byte: E9-2B-F9-BF-74 = 90-90-90-90-90. 10
letters, mean, 5 bytes. The number 90, is the “Noop number”.OK, i hope
you understood it ,
Press F3, which means edit, and now you can edit
these ten numbers.Type five times, the number 90. For every byte, 90.
Now click on F10 to exit.We cracked the CD protection of the - .
Congratulations!!!!
