Cheat Engine

[renomous]

how can i make this script in dll inject

[ENABLE]
alloc(MonsterAggro,4)
registersymbol(MonsterAggro)

0053D16A: //0F B7 86 54 01 00 00 8B 0D
mov eax,[MonsterAggro]
nop
nop
MonsterAggro:
db 03 00 00 00
[DISABLE]
unregistersymbol(MonsterAggro)
0053D16A:
movzx eax,word ptr [esi+00000154]

[atom0s]

Because you're using a registered symbol there will be a little extra work in doing this.

Here's a quick rundown of what you can do to do what you want:

1.) Start your game and Cheat Engine then enable your script.
2.) Go to the address listed in your script and copy the new bytes that are placed there. In your case it should be like this:
A1 ?? ?? ?? ?? 90 90

3.) Next disable your script and copy those bytes too, which should be like:
0F B7 86 54 01 00 00

So now you have what you need to start.

4.) In the DLL define your two arrays like:
BYTE btEnable[] = { 0xA1, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 };
BYTE btDisable[] = { 0x0F, 0xB7, 0x86, 0x54, 0x01, 0x00, 0x00 };

Next you need to create memory for that registered global. So you'd use VirtualAlloc to create an area of memory. The return of this is the address, so you need to use that in your btEnable part.

Now because you were using the global you need to write that address returned from VirtualAlloc into your enable array.
Then you can write your enable array to the games memory.

When you're done, just write the disable array to the memory to fix your patch and undo it. Also be sure to deallocate the memory to created with VirtualAlloc.