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call "GameCode"

 
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KalasDev
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Joined: 29 May 2016
Posts: 311

PostPosted: Sun May 07, 2017 8:40 am    Post subject: call "GameCode" Reply with quote

I'm really confused, sunbeam told to "createthread" but I'm new to this and I don't understand how this code can be executed just by making a Script:

call TheForest.DebugConsole:_addAllItems

the Image of Mono Dissect:

http://fearlessrevolution.com/download/file.php?id=3012
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panraven
Grandmaster Cheater
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Joined: 01 Oct 2008
Posts: 819

PostPosted: Sun May 07, 2017 10:00 am    Post subject: Reply with quote

The function signature is
private void _addAllItems(object o)
which has 2 input parameter, the not-shown this-ptr (of class DebugConsole), and object o.

For this particular function, it does not refer/used the this-ptr or object, so it seems can be called with for example null values instead.
But in general the input parameters of a function should be properly obtained and supply to the call.

Code:

globalalloc(_minimum,256)

_minimum:
xor   eax,eax
push  eax   ///  the Object o parameter, but not used
push  eax   ///  DebugConsole Instance ptr, but not used
mov   eax,"TheForest:DebugConsole:_addAllItems"
call  eax
add   esp,8 /// restore stack
ret

createthread(_minimum)


Also see
http://forum.cheatengine.org/viewtopic.php?t=604041
for the possible need of thread attaching.

bye~

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STN
I post too much
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Joined: 09 Nov 2005
Posts: 2584

PostPosted: Sun May 07, 2017 10:01 am    Post subject: Reply with quote

Please be considerate and don't use the site as image hoster (it doesn't have the server capability to support that. I replaced the image on FRF with imgur (can't delete the image for some reason).

Thank you

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KalasDev
Master Cheater
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Joined: 29 May 2016
Posts: 311

PostPosted: Sun May 07, 2017 11:07 am    Post subject: Reply with quote

panraven wrote:
The function signature is
private void _addAllItems(object o)
which has 2 input parameter, the not-shown this-ptr (of class DebugConsole), and object o.

For this particular function, it does not refer/used the this-ptr or object, so it seems can be called with for example null values instead.
But in general the input parameters of a function should be properly obtained and supply to the call.

Code:

globalalloc(_minimum,256)

_minimum:
xor   eax,eax
push  eax   ///  the Object o parameter, but not used
push  eax   ///  DebugConsole Instance ptr, but not used
mov   eax,"TheForest:DebugConsole:_addAllItems"
call  eax
add   esp,8 /// restore stack
ret

createthread(_minimum)


Also see
http://forum.cheatengine.org/viewtopic.php?t=604041
for the possible need of thread attaching.

bye~


Sorry I'm really new at this, but what you posted is basically it? do I need to add anything else?
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panraven
Grandmaster Cheater
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Joined: 01 Oct 2008
Posts: 819

PostPosted: Sun May 07, 2017 11:50 am    Post subject: Reply with quote

It is an AA script in a memory record, may be an [ENABLE] tag?
Code:

[ENABLE]
... previous script


I guess the main different against an injection script generated from CE template is the AA command
createThread(address) ;
Code:

CE help:
CREATETHREAD(address) :Will spawn a thread in the process at the specified address

Without the command, the script will not be executed, since it is not in any normal execution paths of the game process.

btw, the mono symbolic function address is like this:
namesapce:className:functionName (may need double quote in some case, "namespace:" may omitted if for default namespace)
Not to confused with DotNet symbolic function address,
name.space.path.className::functionName (double :Smile

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