获取错误 - 启用权限后，OpenProcess（）中的访问被拒绝

问题描述

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大家好，我想获得csrss进程的可执行路径。我启用了权限，但GetLastError（）函数在OpenProcess中返回错误5。我正在以管理员身份运行Visual Studio并在64位模式下编译程序，我也在使用Windows 8.感谢所有人。

Hi all, I want to get executable path of csrss process. I enabled privileges, but GetLastError() function returns error 5 in OpenProcess. I'm running Visual Studio as administrator and compiling program in 64bit mode, also I'm using Windows 8. Thanks to all.

    HANDLE hcurrentProcess=GetCurrentProcess();
    HANDLE hToken;
    size_t error;

    if (!OpenProcessToken(hcurrentProcess, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
	return nullptr;

    if (CheckTokenPrivilege(hcurrentProcess, SE_DEBUG_NAME)) {
	LUID luid;

	if (!LookupPrivilegeValue(NULL, SE_LOAD_DRIVER_NAME, &luid))
	    return nullptr;

	TOKEN_PRIVILEGES newState,prvsState;
	DWORD length;
	newState.PrivilegeCount = 1;
	newState.Privileges[0].Luid = luid;
	newState.Privileges[0].Attributes = 2;

	AdjustTokenPrivileges(hToken, FALSE, &newState, 28, &prvsState, &length);
	error = GetLastError(); //error = 0

	if (error == ERROR_NOT_ALL_ASSIGNED)
	   return nullptr;
        //OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, 876);  also error 5
	HANDLE  hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, 876);

        error = GetLastError();    //  error 5  Access is denied
}

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