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Invalid access to memory location.

 
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mStorm
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Joined: 21 Feb 2009
Posts: 107
PostPosted: Fri Mar 13, 2009 2:35 pm    Post subject: Invalid access to memory location. Reply with quote
I'm trying to use WriteProcessMemory, I know I'm using it correctly, but I get a failed result and "Invalid access to memory location." error.

I have set the privaladges via:

Code:
bool EnableSEPriv()
{
   HANDLE hToken;
   LUID luID;
   TOKEN_PRIVILEGES tkp;

   if(!OpenProcessToken(GetCurrentProcess(), (TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY), &hToken))
      return false;

   if(!LookupPrivilegeValue(NULL, SE_DEBUG_NAME, &luID))
      return false;

   tkp.PrivilegeCount = 1;
   tkp.Privileges[0].Luid = luID;
   tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;

   AdjustTokenPrivileges(hToken, FALSE, &tkp, sizeof(tkp), NULL, NULL);
   CloseHandle(hToken);
   return true;
}


but it still will not let me write to the memory location.

Any ideas?
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smartz993
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Joined: 20 Jun 2006
Posts: 2013
Location: USA
PostPosted: Fri Mar 13, 2009 2:40 pm    Post subject: Reply with quote
Let's see some code ?
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BanMe
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Joined: 29 Nov 2005
Posts: 375
Location: Farmington NH, USA
PostPosted: Fri Mar 13, 2009 2:50 pm    Post subject: Reply with quote
try changing the memory protection of the memory you wish to write to using VirtualProtect(Ex) and please refer to this page for further info..

http://msdn.microsoft.com/en-us/library/aa366786(VS.85).aspx

regards BanMe
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crayzbeef
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Joined: 21 Jan 2007
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PostPosted: Fri Mar 13, 2009 5:13 pm    Post subject: Reply with quote
*Mind reads the writeprocessmemory code where the error is*

Yeah. if you're going to ask a question post the fucking code in question.
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HomerSexual
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Joined: 03 Feb 2007
Posts: 1657
PostPosted: Fri Mar 13, 2009 6:54 pm    Post subject: Reply with quote
crayzbeef wrote:
*Mind reads the writeprocessmemory code where the error is*

Yeah. if you're going to ask a question post the fucking code in question.


calm down man.
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