C ++ CreateRemoteThread Access Violation
I am having a problem with the CreateRemoteThread function.
I just created a small console window asking for a specific number to come out (so that it just stays open as long as I want to). Inside this program there is a function whose address I understand.
Now I want to call this function a second program via CreateRemoteThread, but it always says there is an access violation. Both are compiled in the same way.
Here is the code for my remote call:
bool SetPrivileges(){
HANDLE pt; //process token
TOKEN_PRIVILEGES ptp; //process token privileges
if (OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &pt))
{
LookupPrivilegeValue(NULL, SE_DEBUG_NAME, &ptp.Privileges[0].Luid);
ptp.PrivilegeCount = 1;
ptp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
if (AdjustTokenPrivileges(pt, false, &ptp, sizeof(ptp), NULL, NULL))
{
return true;
}
}
return false;}
int _tmain(int argc, _TCHAR* argv[])
{
if (SetPrivileges())
{
cout << "Enabled custom privileges" << endl;
}
else{
cout << "Could not enable custom privileges" << endl << GetLastError() << endl;
}
CodeHelper ch;
DWORD processId = ch.GetProcessId("CallMeConsole.exe");
HANDLE proc = OpenProcess(PROCESS_ALL_ACCESS, false, processId);
DWORD Testaddress = 0x008642D0;
HANDLE thread = CreateRemoteThread(proc, NULL, 0, (LPTHREAD_START_ROUTINE)Testaddress, NULL, 0, NULL);
/*if (thread != 0)
{
WaitForSingleObject(thread, INFINITE);
CloseHandle(thread);
CloseHandle(proc);
cout << "success!" << endl;
}
else{
cout << "error" << endl;
}*/
return 0;}
If I'm right, I just need VirtualAllocEx to reserve memory space if I want to inject some code. But I just want to call a programmatic function.
Do you have any ideas?
Searching didn't really help me. Thank!
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