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[C#] WriteProcessMemory

 
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yoyonerd
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PostPosted: Wed Feb 11, 2009 1:37 am    Post subject: [C#] WriteProcessMemory Reply with quote
Simple enough, I am 95% sure I've done all the other arguments right, but the first one, with open process stumps me, i'll put my code here, if some1 could please tell me what went wrong

Code:
System.Diagnostics.Process[] proc = System.Diagnostics.Process.GetProcessesByName("MapleStory");

IntPtr hProcess = OpenProcess(0x1F0FFF, 0, (UInt32)proc[0].Id);

byte[] Kill_Ad = { 0x90, 0x90, 0x90, 0x90, 0x90 };

//Kill Ad
                WriteProcessMemory(hProcess, (IntPtr)0x007C66E3, Kill_Ad, (UIntPtr)Kill_Ad.Length, out bytesout);


this is for a maplestory v62 private server, if anybody can help, my AIM and msn are below in the button links

thanks, any type of comment is appreciated
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Anden100
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PostPosted: Wed Feb 11, 2009 4:37 am    Post subject: Reply with quote
Did you try to call GetLastError(), and see what it returns?
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dnsi0
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PostPosted: Wed Feb 11, 2009 8:56 am    Post subject: Re: [C#] WriteProcessMemory Reply with quote
yoyonerd wrote:
Simple enough, I am 95% sure I've done all the other arguments right, but the first one, with open process stumps me, i'll put my code here, if some1 could please tell me what went wrong

Code:
System.Diagnostics.Process[] proc = System.Diagnostics.Process.GetProcessesByName("MapleStory");

IntPtr hProcess = OpenProcess(0x1F0FFF, 0, (UInt32)proc[0].Id);

byte[] Kill_Ad = { 0x90, 0x90, 0x90, 0x90, 0x90 };

//Kill Ad
                WriteProcessMemory(hProcess, (IntPtr)0x007C66E3, Kill_Ad, (UIntPtr)Kill_Ad.Length, out bytesout);


this is for a maplestory v62 private server, if anybody can help, my AIM and msn are below in the button links

thanks, any type of comment is appreciated


see if proc[0].Id actucally returned anything.
then see if hProcess Returned anything then see if wpm returned true. I dont have .NET so Can't help you.
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Zerith
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PostPosted: Wed Feb 11, 2009 9:04 am    Post subject: Re: [C#] WriteProcessMemory Reply with quote
dnsi0 wrote:
yoyonerd wrote:
Simple enough, I am 95% sure I've done all the other arguments right, but the first one, with open process stumps me, i'll put my code here, if some1 could please tell me what went wrong

Code:
System.Diagnostics.Process[] proc = System.Diagnostics.Process.GetProcessesByName("MapleStory");

IntPtr hProcess = OpenProcess(0x1F0FFF, 0, (UInt32)proc[0].Id);

byte[] Kill_Ad = { 0x90, 0x90, 0x90, 0x90, 0x90 };

//Kill Ad
                WriteProcessMemory(hProcess, (IntPtr)0x007C66E3, Kill_Ad, (UIntPtr)Kill_Ad.Length, out bytesout);


this is for a maplestory v62 private server, if anybody can help, my AIM and msn are below in the button links

thanks, any type of comment is appreciated


see if proc[0].Id actucally returned anything.
then see if hProcess Returned anything then see if wpm returned true. I dont have .NET so Can't help you.

If any process was found then it's inserted into the Process array, or else it doesn't, so if proc[0] exist then proc[0].Id is a valid ID aswell.

Are you using PROCESS_ALL_ACCESS? just use PROCESS_VM_WRITE and PROCESS_VM_READ if needed, you don't need anything else.
Or you could get debug priviliges, which seems like a waste to me.
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NINTENDO
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PostPosted: Wed Feb 11, 2009 12:02 pm    Post subject: Reply with quote
Offtopic but why not just import the System.Diagnostics namespace?
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samuri25404
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PostPosted: Wed Feb 11, 2009 5:06 pm    Post subject: Re: [C#] WriteProcessMemory Reply with quote
Code:
System.Diagnostics.Process[] proc = System.Diagnostics.Process.GetProcessesByName("MapleStory");
MessageBox.Show(Marshal.GetLastWin32Error().ToString()); //Or you can use Console.WriteLine(), or whatever you want

IntPtr hProcess = OpenProcess(0x1F0FFF, 0, (UInt32)proc[0].Id);

byte[] Kill_Ad = { 0x90, 0x90, 0x90, 0x90, 0x90 };

//Kill Ad
                WriteProcessMemory(hProcess, (IntPtr)0x007C66E3, Kill_Ad, (UIntPtr)Kill_Ad.Length, out bytesout);
Messagebox.Show(Marshal.GetLastWin32Error.ToString());

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