//0x24 bytes (sizeof)
struct _FS_FILTER_CALLBACK_DATA
{
ULONG SizeOfFsFilterCallbackData; //0x0
UCHAR Operation; //0x4
UCHAR Reserved; //0x5
struct _DEVICE_OBJECT* DeviceObject; //0x8
struct _FILE_OBJECT* FileObject; //0xc
union _FS_FILTER_PARAMETERS Parameters; //0x10
};