Mega Code Archive
Messing with other applications memory
<![CDATA[
Title: Messing with other applications memory
Question: How can I edit data of my favorite game?
Answer:
First we will have to state some variables and define
our constants. (i use "===" to show where the code you
will put in the program begins. Please do not put this
in your program, as neither you or Delphi will appreciate it)
===
Var
Form1: TForm1;
WindowName : integer;
ProcessId : integer;
ThreadId : integer; // defining variable's types ;
buf : PChar;
HandleWindow : Integer;
write : cardinal ;
Const
WindowTitle = 'Game Window'; //!define the game's window name ;
Address1 = $4ab3485f; //!define your address to poke ;
PokeValue1 = $90; //!define what value to write ;
NumberOfBytes1 = 1; //!define amount of bytes to write;
===
The Variables and Constants should be places just before the
Implementation command. You needn't worry about the Var area
unless you know delphi and want to do more than use a button
to poke an address. Under Const there is:
WindowTitle - make this equal to what the text on the
menubar in windows for the game is. For
delphi it says "Delphi 6," so type
'Delphi 6'.
Address1 - This is the hex address for the first
button to poke. Find your address using
a memory scanner. Look to ArcheaHacking.com
for tutorials on memory scanning. Do not
include any trailing zero's, and include the
"$" before the address.
PokeValue1 - This is what you want your value to be
equal to. Type in the hex equivalent of
what the value will be, and make sure to
include the "$"
NumberOfBytes1 - This is for how many bytes to write.
If you are writing "90" to an address
that is 1 byte. If you are writing
"9090" that is 2 bytes.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Now we must create a button for our trainer, so that the
user may poke the address. To create a button for your
form, double click "button" under the "Standard" components
tab. From here you can modify the text in the button under
"Caption" in your object inspector (make sure Button1 is
selected in the drop box).
To make the button do something, click the "events" tab in
the object inspector. Now double click to the right of
"OnClick" and you will be brought to your code. Here just
enter:
===
begin
WindowName := FindWindow(nil,WindowTitle);
If WindowName = 0 then // check if the game is running;
begin
MessageDlg('The game must be running. Run it now, and then try again.', mtwarning,[mbOK],0);
end;
// the following will write our value;
ThreadId := GetWindowThreadProcessId(WindowName,@ProcessId);
HandleWindow := OpenProcess(PROCESS_ALL_ACCESS,False,ProcessId);
GetMem(buf,1);
buf^ := Chr(PokeValue1);
WriteProcessMemory(HandleWindow,ptr(Address1),buf,NumberOfBytes1,write);
FreeMem(buf);
closehandle(HandleWindow);
end;
===
And there we go, we have made a Trainer in Delphi6.
Instructions are provided on adding more buttons inside the
Project file. I included both the project file, and the
pascal file, so that those without delphi6 can view the
pas file.
]]>