驱动开发：断链隐藏驱动程序自身

与断链隐藏进程功能类似，关于断链进程隐藏可参考《驱动开发：DKOM 实现进程隐藏》这一篇文章，断链隐藏驱动自身则用于隐藏自身SYS驱动文件，当驱动加载后那么使用ARK工具扫描将看不到自身驱动模块，此方法可能会触发PG会蓝屏，在某些驱动辅助中也会使用这种方法隐藏自己。

驱动实现代码如下所示:

#include <ntifs.h>

HANDLE hThread;

VOID ThreadRun(PVOID StartContext)
{
	LARGE_INTEGER times;
	PDRIVER_OBJECT pDriverObject;

	// 等待3秒  单位是纳秒
	times.QuadPart = -30 * 1000 * 1000;

	KeDelayExecutionThread(KernelMode, FALSE, &times);
	pDriverObject = (PDRIVER_OBJECT)StartContext;
	
	// 修改模块信息
	pDriverObject->DriverSize = 0;
	pDriverObject->DriverSection = NULL;
	pDriverObject->DriverExtension = NULL;
	pDriverObject->DriverStart = NULL;
	pDriverObject->DriverInit = NULL;
	pDriverObject->FastIoDispatch = NULL;
	pDriverObject->DriverStartIo = NULL;

	ZwClose(hThread);
}

VOID UnDriver(PDRIVER_OBJECT driver)
{
	DbgPrint(("Uninstall Driver Is OK n"));
}

NTSTATUS DriverEntry(IN PDRIVER_OBJECT Driver, PUNICODE_STRING RegistryPath)
{
	DbgPrint(("hello lyshark n"));

	PLIST_ENTRY pModuleList;
	pModuleList = Driver->DriverSection;

	// 前一个模块的Flink=本模块的Flink
	pModuleList->Blink->Flink = pModuleList->Flink;
	
	// 前一个模块的Blink=本模块的Blink
	pModuleList->Flink->Blink = pModuleList->Blink;
	PsCreateSystemThread(&hThread, GENERIC_ALL, NULL, NULL, NULL, ThreadRun, Driver);

	Driver->DriverUnload = UnDriver;
	return STATUS_SUCCESS;
}

输出效果如下，驱动每隔3秒执行一次模块修改：

image.png