在游戏外挂和反外挂的对抗中

驱动有其重要的作用

但是随着Windows 系统的升级 很多东西出现了局限性，不过我们还是需要了解学习一下

其最基础的知识

创建驱动设备对象的符号链接

//环境设置:

//属性页->C / C+±>警告等级 : 等级3 / W3

//属性页->C / C+±>将警告视为错误 : 否 / WX -

//属性页->Inf2Cat->Run Inf2Cat : 否

//属性页->Driver Settings->Target Os Version : 设置版本 Windows 7 Windows 10任选

//属性页->Driver Settings->Target PlatForm : Desktop

//属性页->StampInf->Endable ArchiteCture : 否

//KdPrint类似于 控制台的printf

//DriverEntry类似于 C / C++里的main

#include

#pragma code_seg(“PAGE”)

//创建驱动设备对象

NTSTATUS CreateDevice(PDRIVER_OBJECT driver)

{

NTSTATUS status;

UNICODE_STRING uzDriverName;

PDEVICE_OBJECT device;

RtlInitUnicodeString(&uzDriverName, L"\DEVICE\uzDriverName001");

//创建驱动设备

status = IoCreateDevice(driver, sizeof(driver->DriverExtension), &uzDriverName, FILE_DEVICE_UNKNOWN, FILE_DEVICE_SECURE_OPEN, FALSE, &device);

if (status == STATUS_SUCCESS)

{

KdPrint((“yjx:驱动设备对象 %wZ 创建成功，OK -----------\n”, &uzDriverName));

//为设备对象绑定一个符号链接

UNICODE_STRING uzSymbolName; //符号链接名字

RtlInitUnicodeString(&uzSymbolName, L"\??\uzDriverName001"); //CreateFile

status = IoCreateSymbolicLink(&uzSymbolName, &uzDriverName);

if (status==STATUS_SUCCESS)

{

KdPrint(("yjx:创建符号链接 %wZ 成功 ", &uzSymbolName));

}

else

{

KdPrint(("yjx:创建符号链接 %wZ 失败 ", &uzSymbolName));

}

}

else

{

KdPrint((“yjx:驱动设备对象 %wZ 创建失败，准备删除Device -----------\n”, &uzDriverName));

IoDeleteDevice(device);

}

return status;

}

//驱动卸载例程

void UnLoad(PDRIVER_OBJECT driver)

{

NTSTATUS status = 0;

IoDeleteDevice(driver->DeviceObject); //删除设备对象,如果此处不删除 卸载不干净 再次用IoCreateDevice创建同名驱动 会蓝屏

//删除符号链接

UNICODE_STRING uzSymbolName; //符号链接名字

RtlInitUnicodeString(&uzSymbolName, L"\??\uzDriverName001");

status=IoDeleteSymbolicLink(&uzSymbolName);

if (!status) //if(status == STATUS_SUCCESS)

{

KdPrint(("yjx:删除符号链接 %wZ 成功 ",&uzSymbolName));

}

else

{

KdPrint(("yjx:删除符号链接 %wZ 失败 ", &uzSymbolName));

}

KdPrint((“yjx:驱动卸载成功\n”));

}

NTSTATUS DriverEntry(PDRIVER_OBJECT driver,PVOID szReg) //main

{

KdPrint((“yjx:进入了我们的驱动 \n”)); //printf

driver->DriverUnload = UnLoad;

NTSTATUS status=CreateDevice(driver);//创建了设备对象

return STATUS_SUCCESS;

}

IRP 派遣函数

driver->MajorFunction[IRP_MJ_DEVICE_CONTROL] = DeviceIrpCtl;//DeviceIoControl

driver->MajorFunction[IRP_MJ_CREATE] = DeviceIrpCtl; //CreateFile

driver->MajorFunction[IRP_MJ_CLOSE] = DeviceIrpCtl;//卸载驱动 CloseHandle

NTSTATUS DeviceIrpCtl(PDEVICE_OBJECT device,PIRP pirp)

{

KdPrint((“yjx:进入派遣函数”));

PIO_STACK_LOCATION irpStackL;

ULONG CtlCode;

ULONG InputBuffLength;

irpStackL=IoGetCurrentIrpStackLocation(pirp); //获取应用层传来的参数

switch(irpStackL->MajorFunction)

{

      IRP_MJ_DEVICE_CONTROL;IRP_MJ_CREATE;IRP_MJ_CLOSE;}

pirp->IoStatus.Status = STATUS_SUCCESS;

pirp->IoStatus.Information = 4;//返回给DeviceIoControl中的 倒数第二个参数lpBytesReturned

IoCompleteRequest(pirp, IO_NO_INCREMENT);//调用方已完成所有I/O请求处理操作 并且不增加优先级

KdPrint((“yjx:离开派遣函数”));

return STATUS_SUCCESS;

}

//打开驱动设备

void CIoControlIrpDlg::OnBnClickedCreate()

{

// TODO: 在此添加控件通知处理程序代码

DeviceHandle = CreateFileW(

L"\??\uzDriverName001",

GENERIC_READ | GENERIC_WRITE,

FILE_SHARE_READ | FILE_SHARE_WRITE,

NULL,

OPEN_EXISTING,

FILE_ATTRIBUTE_NORMAL,

NULL);

}

void CIoControlIrpDlg::OnBnClickedButtonClose()

{

// TODO: 在此添加控件通知处理程序代码

if (DeviceHandle)

{

CloseHandle(DeviceHandle);

DeviceHandle = NULL;

}

}

R3应用层与R0驱动层简单通信

#define IO_IS_OK_TEST CTL_CODE(FILE_DEVICE_UNKNOWN, 0x803, METHOD_BUFFERED,FILE_ANY_ACCESS) //测试

//WriteFile ReadFile

BOOL DeviceIoControl(

HANDLE hDevice, // 设备驱动的句柄 由CreateFile获取

DWORD dwIoControlCode, // 操作控制码

LPVOID lpInBuffer, // 输入缓冲区指针 要传入驱动的 参数

DWORD nInBufferSize, // 输入缓冲区大小

LPVOID lpOutBuffer, // 输出缓冲区指针

DWORD nOutBufferSize, // 输出缓冲区大小

LPDWORD lpBytesReturned, // 存放返回的字节数的指针

LPOVERLAPPED lpOverlapped // 异步结构指针,同步或者异步

);

BOOL WINAPI IoControlIsOK()

{

DWORD nTypeCode = IO_IS_OK_TEST;

ULONG64 BufferInData = 0;;

DWORD NumberOfBytesRead = 0;

BOOL IsOK = DeviceIoControl(

GetDeviceHandle(), //CreateFile函数打开的设备句柄

nTypeCode,//自定义的控制码

&BufferInData,//输入缓冲区

sizeof(BufferInData),//输入缓冲区大小

&BufferInData,输出缓冲区

sizeof(BufferInData),//输出缓冲区的大小

&NumberOfBytesRead,//实际返回的字节数，对应驱动程序中pIrp->IoStatus.Information。

NULL); 重叠操作结构指针。同步设为NULL，DeviceIoControl将进行阻塞调用；否则，应在编程时按异步操作设计

DbgPrintA(“yjx:IsOK=%d,NumberOfBytesRead=%d BufferInData=%d”, IsOK, NumberOfBytesRead, BufferInData);

return NumberOfBytesRead;

}

#include

#define IO_IS_OK_TEST CTL_CODE(FILE_DEVICE_UNKNOWN, 0x803, METHOD_BUFFERED,FILE_ANY_ACCESS) //测试

void CMFCIRPCTRLDlg::OnBnClickedButtonIoCtl()

{

// TODO: 在此添加控件通知处理程序代码

INT64 InBuf[3] = { 0x123456,0x123456789ABCDEF,0x888888ABC }; //输入缓冲区

INT64 OutBuf[6] = { 0 };

DWORD dwSize = 0;

DeviceIoControl(

DeviceHandle,

IO_IS_OK_TEST,

InBuf,//输入缓冲区指针

sizeof(InBuf),//2*8,//输入缓冲区大小

OutBuf,//输出缓冲区

sizeof(OutBuf), //输出缓冲区大小 6*8 =48

&dwSize,//返回 字节数 pIrp->IoStatus.Information //IRP.IOStatus.InforMation

NULL //同步异步

);

CString csStr;

csStr.Format(L"yjx:EXE:%llx,%llx,%llx,%llx,%llx,%llx dwSize=%llx …OK\n", OutBuf[0], OutBuf[1], OutBuf[2], OutBuf[3], OutBuf[4], OutBuf[5], dwSize);

OutputDebugStringW(csStr);

}

//驱动层 获取用户层参数

Irp->AssociatedIrp.SystemBuffer;

driver->Flags |= DO_BUFFERED_IO; //IO访问方式 重要 对应 METHOD_BUFFERED

inBufLength = irpStack->Parameters.DeviceIoControl.InputBufferLength;

outBufLength = irpStack->Parameters.DeviceIoControl.OutputBufferLength;

ioControlCode = irpStack->Parameters.DeviceIoControl.IoControlCode;