Hooking WoW

[loll__loll__]

Hi all,

what is the best way to hook into WoW to execute some functions like LUA_doString and others? Is the CreateRemoteThread detectable? Or can I protect my hook via Warden hooks?

Has somebody an idea how to hook some functions to make WoW load only 1 Pixel-Pictures as textures, so that the RAM usage of WoW reduces strongly?
(Not for the eye, but to create something similar to a clientless bot)
I guess I need to do this via a wrapper kernel32.dll to apply the hook at app start, does anybody have any other idea?

MfG,
loll__loll__

[Valediction]

Hi all,

what is the best way to hook into WoW to execute some functions like LUA_doString and others?
loll__loll__

Did you try searching?

[loll__loll__]

Yes I did, some say it is best to inject, some say it is better to use a remote thread, I wanted know what you guys think / do.

[DarkLinux]

Your talking about 2 different things. You can inject and create your own thread, I dont think thats detected. You can also hook some DirectX function. If you want to call protected LUA functions you will need to call it from the main thread, so creating your own thread will not work. I hope that helps you out a little more. Also I dont think Warden has ever scanned the DirectX lib.

[migtron]

Is the CreateRemoteThread detectable?

Yes, but WoW doesn't try to do it.

Or can I protect my hook via Warden hooks?

You can, but unless you want to patch the client, it's wasted time.

Has somebody an idea how to hook some functions to make WoW load only 1 Pixel-Pictures as textures, so that the RAM usage of WoW reduces strongly?

Maybe try hooking ID3D11Device::CreateTexture2D? But I would wager that will only affect GPU RAM usage, not system RAM.

I guess I need to do this via a wrapper kernel32.dll to apply the hook at app start, does anybody have any other idea?

That's a pretty roundabout way to do it. Why not start WoW with your own loader?

Yes I did, some say it is best to inject, some say it is better to use a remote thread, I wanted know what you guys think / do.

Both are the same thing. Or what do you intend to start the remote thread with if not injected code? Make sure the main thread is suspended in a safe state when introducing the new thread! WoW functions are not inherently thread-safe, so calling them outside the main thread or taking sensible precautions is asking for trouble.

[loll__loll__]

Thx DarkLinux and migtron for the answers.

All I want to achieve with Lua is to cast spells by id or name and to not force the player to create settings for key bindings like Pirox did. Maybe I am just a little bit too fast with that, I don't even get the players health ATM...

I thought about a hook or injection, which returns the 1 pixel picture on WoW's asset loading instead of the real requested picture.
That should drive down the used RAM a lot.

[Valediction]

All I want to achieve with Lua is to cast spells by id or name and to not force the player to create settings for key bindings like Pirox did. Maybe I am just a little bit too fast with that, I don't even get the players health ATM...

While you can inject and use FrameScript__Execute to call some LUA to do what you wan't (CastSpellByName most likely) you can also use SendMessage (or PostMessage if you want background functionality) and direct keystrokes towards the WoW window to actually type those commands. It can be done reasonably fast, even faster if you use the clipboard. I suggest this since if that's your only reason to go in-process you may want to avoid the hassle all together, especially reading your current progress.

Of course, being in process opens many more options...

[rens]

Thx DarkLinux and migtron for the answers.

All I want to achieve with Lua is to cast spells by id or name and to not force the player to create settings for key bindings like Pirox did. Maybe I am just a little bit too fast with that, I don't even get the players health ATM...

I thought about a hook or injection, which returns the 1 pixel picture on WoW's asset loading instead of the real requested picture.
That should drive down the used RAM a lot.

Use LUA not SendMessage/PostMessage, LUA is powerful and allows you to do so much more.

On another note, you should try memory reading before jumping in and attempting to hook wow.