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Using Address Stored at the Sum of Two Registers with an AOB

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Mr. Starman
Newbie cheater

Reputation: 0

Joined: 09 Oct 2012
Posts: 16

Posted: Tue Jul 30, 2019 8:38 am Post subject: Using Address Stored at the Sum of Two Registers with an AOB

So I have an AOBscan that points to an instruction.

Code:

mov [rdx+rax],r15l

I want to be able to use the address stored by that rdx+rax instruction, as the address points to the value I want to edit.

I don't know how to write the script. I usually do it by AOBscanning the area around the actual value itself and then just making the code like this.

Code:

aobscanmodule(INJECT,visualboyadvance-m.exe,44 88 3C 02 0F 1F 80 00 00 00 00 4C 8B 0D * * * * 48 63 ED 4C 8B 25 AF) // should be unique
label(address)
registersymbol(address)

INJECT:
address:

[DISABLE]
unregistersymbol(address)

Then I can just plug in "address" as the address manually.

ParkourPenguin
I post too much

Reputation: 152

Joined: 06 Jul 2014
Posts: 4702

Posted: Tue Jul 30, 2019 9:34 am Post subject:

Well, rdx+rax could be anything. You'll need to copy it using code injection. Look up "injection copy" / "injection copies" on youtube. _________________ I don't know where I'm going, but I'll figure it out when I get there.

Mr. Starman
Newbie cheater

Reputation: 0

Joined: 09 Oct 2012
Posts: 16

Posted: Tue Jul 30, 2019 3:25 pm Post subject:

ParkourPenguin wrote:

Well, rdx+rax could be anything. You'll need to copy it using code injection. Look up "injection copy" / "injection copies" on youtube.

Thank you.

It's an emulator so there are thousands of other addresses being written by the instruction so I suppose this method is impossible.

Edit:
Not to mention that the line below it, nop [rax+00000000], can't be compiled by code injection for some reason.

Edit2:
I can fix that by just declaring the instructions manually with DB, but the pointers aren't static at all since it's being used by a bajilion other instructions at all, so you can't use this method in the end.

Edit3:
Holy shit, nevermind, I actually did it! The EAX (offset) value is static for the address I want!

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