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March 27, 2012 D Dll injection problem | ||||
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Hey there, I want to inject a dll which was created in D into a c Program. Informations: DMD vs. 2.058 IDE: MonoDevelop with Mono-D System: Windows 7 64bit Program Informations: 32-bit written in c The Injector is working for sure, so thats not the Problem. the Source of the DLL: import std.c.windows.windows; import core.sys.windows.dll; __gshared HINSTANCE g_hInst; extern (Windows) BOOL DllMain(HINSTANCE hInstance, ULONG ulReason, LPVOID pvReserved) { final switch (ulReason) { case DLL_PROCESS_ATTACH: g_hInst = hInstance; dll_process_attach( hInstance, true ); break; case DLL_PROCESS_DETACH: dll_process_detach( hInstance, true ); break; case DLL_THREAD_ATTACH: dll_thread_attach( true, true ); break; case DLL_THREAD_DETACH: dll_thread_detach( true, true ); break; } return true; } It builds fine, but If I inject it, the program (where the dll is injected) says that the dll is not a valid image. screenshot: http://imagr.eu/up/4f72240329a846_Unbenannt.png Maybe it's because I have no def file. But i dont know how to link it with Mono-D. |
March 27, 2012 Re: D Dll injection problem | ||||
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Posted in reply to Gyron Attachments:
| when I tried the previous dmd compiler (have yet to try the curent one on this problem) I got the same problems while trying to compile a dll and use it. I have no clue as to why this is happening. worked in 2.54 I thought |
March 27, 2012 Re: D Dll injection problem | ||||
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Posted in reply to maarten van damme | On Tuesday, 27 March 2012 at 20:45:52 UTC, maarten van damme wrote:
> when I tried the previous dmd compiler (have yet to try the curent one on
> this problem) I got the same problems while trying to compile a dll and use
> it. I have no clue as to why this is happening. worked in 2.54 I thought
I thought D would be a good alternative for c++, but as it seems I need to stay with c++ :/
Thats really bad, a minus point on my "Why choose D" list.
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March 27, 2012 Re: D Dll injection problem | ||||
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Posted in reply to Gyron | > Maybe it's because I have no def file.
Very possible.
Just pass it to dmd like the other files.
Or try the new -shared flag.
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March 27, 2012 Re: D Dll injection problem | ||||
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Posted in reply to Trass3r | On Tuesday, 27 March 2012 at 21:12:59 UTC, Trass3r wrote:
>> Maybe it's because I have no def file.
>
> Very possible.
> Just pass it to dmd like the other files.
> Or try the new -shared flag.
I have tried both now (shared and def file linking), but know it's crashing my App, lol.
I inject it but it returns nothing and the App(where the dll is injected) is hanging( not responding).
Could you try it maybe?
I would like to know whether it's a Problem with D or with me.
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March 27, 2012 Re: D Dll injection problem | ||||
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Posted in reply to Gyron | > I inject it but it returns nothing and the App(where the dll is injected) is hanging( not responding).
>
> Could you try it maybe?
> I would like to know whether it's a Problem with D or with me.
Are dlls without injection working?
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March 27, 2012 Re: D Dll injection problem | ||||
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Posted in reply to Trass3r | On Tuesday, 27 March 2012 at 21:46:23 UTC, Trass3r wrote:
>> I inject it but it returns nothing and the App(where the dll is injected) is hanging( not responding).
>>
>> Could you try it maybe?
>> I would like to know whether it's a Problem with D or with me.
>
> Are dlls without injection working?
I don't know, haven't tested it.
Will test it when I'm back home, but I think they work( not sure).
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March 28, 2012 Re: D Dll injection problem | ||||
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Posted in reply to Gyron Attachments:
| I wrote my own injector and this makes the target exe call loadlibrary. this works on every dll I try to inject apart from dll's written in D (starting with dmd version 2,054 or something like that). I'll try with D calling loadlibrary on D dll's this evening. |
March 28, 2012 Re: D Dll injection problem | ||||
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Posted in reply to maarten van damme | > this works on every dll I try to inject apart from dll's written in D
> (starting with dmd version 2,054 or something like that).
If this is a regression, please narrow it down to the exact version.
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April 11, 2012 Re: D Dll injection problem | ||||
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Posted in reply to Trass3r Attachments:
| I went ahead and went back to as far as 2.045 and I still couldn't get a working dll. This would suggest something is wrong with my dll injection code but I've tested with a few other random dll's and that appears to work. according to my debugger the problem is an access violation while executing the main function of the D dll. the code I use for injecting is /** * injectDLL injects a dll in a given process using the CreateRemoteThread function. * * arguments: * HANDLE proc = A HANDLE to the process * string dllName = A string containting the name of the dll **/ void injectDLL(HANDLE proc,string dllName) { //first we need to get a pointer to the loadlibrary function LPVOID LoadLibAddy = cast(LPVOID)GetProcAddress(GetModuleHandle("kernel32.dll"), "LoadLibraryA"); //The problem is that we need to pass an argument(string) but that string is in our memory space //so we have to allocate space to write our dllName to using writeprocessmemory LPVOID RemoteString = VirtualAllocEx(proc,null,dllName.length,MEM_COMMIT | MEM_RESERVE,PAGE_READWRITE); //write the dllName WriteProcessMemory(proc,RemoteString,toStringz(dllName),dllName.length,null); //create a thread in the remote process loading the dll CreateRemoteThread(proc, null, 0, cast(LPTHREAD_START_ROUTINE)LoadLibAddy, cast(LPVOID)RemoteString, 0, null); } Op 28 maart 2012 13:13 schreef Trass3r <un@known.com> het volgende: > this works on every dll I try to inject apart from dll's written in D >> (starting with dmd version 2,054 or something like that). >> > > If this is a regression, please narrow it down to the exact version. > |
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