#include <windows.h>

bool AdjustPrivileges() {
	HANDLE hToken = NULL;
	TOKEN_PRIVILEGES tp;
	TOKEN_PRIVILEGES oldtp;
	DWORD dwSize = sizeof(TOKEN_PRIVILEGES);
	LUID luid;

	OpenProcessToken(GetCurrentProcess(), TOKEN_ALL_ACCESS, &hToken);


	if (!LookupPrivilegeValue(NULL, SE_DEBUG_NAME, &luid)) {
		CloseHandle(hToken);
		OutputDebugString(TEXT("提升权限失败,LookupPrivilegeValue"));
		return false;
	}
	ZeroMemory(&tp, sizeof(tp));
	tp.PrivilegeCount = 1;
	tp.Privileges[0].Luid = luid;
	tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
	/* Adjust Token Privileges */
	if (!AdjustTokenPrivileges(hToken, FALSE, &tp, sizeof(TOKEN_PRIVILEGES), &oldtp, &dwSize)) {
		CloseHandle(hToken);
		OutputDebugString(TEXT("提升权限失败 AdjustTokenPrivileges"));
		return false;
	}
	// close handles
	CloseHandle(hToken);
	return true;
}

调用伪代码:
int main()
{
  AdjustPrivileges();
  此时OpenProcess的时候 使用PROCESS_ALL_ACCESS权限则可以成功了
}

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