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Calling a mono function with a thread

 
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Mac99
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Joined: 13 Sep 2022
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PostPosted: Mon Dec 11, 2023 1:44 pm    Post subject: Calling a mono function with a thread Reply with quote
My goal is to call a mono function. I a guide I saw, that it is possible to just create a thread and execute in it the opcodes of the target function.
Since I am also using mono features I would like to include the method names inside my opcode.

Somehow I can't even get my script to compile.
I am stuck with this opcode:
Code:
movss xmm0,[StartOfRound:ReviveDeadPlayers+11f0]

Normallly I could just put it in quotes like this
Code:
jbe "StartOfRound:ReviveDeadPlayers"+1037

and the instruction could be compiled. But this time it doesn't work.

Even with this problem fixed, I really can't believe that you could just execute a method this way. The game is based on Unity.
Is this way of executing a method even possible with or without using method names?

I would really appreciate your help.
I've tried searching around but there is only very limited knowledge available about calling a mono function with cheat engine.
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ParkourPenguin
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Posts: 4651
PostPosted: Mon Dec 11, 2023 2:23 pm    Post subject: Reply with quote
Probably RIP-relative addressing. The address is too far away to access it directly. Allocate memory near the address (third parameter to alloc) or reference it indirectly (i.e. through a register).

IIRC there's more to executing a mono function than just passing the right parameters. Open "monoscript.lua" in the autorun folder and search for "invoke" for more information.
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