參考資訊：
https://wasm.in/
http://four-f.narod.ru/
https://github.com/steward-fu/ddk
main.asm
.386p
.model flat, stdcall
option casemap:none
include c:\masm32\include\w2k\ntstatus.inc
include c:\masm32\include\w2k\ntddk.inc
include c:\masm32\include\w2k\ntoskrnl.inc
include c:\masm32\include\w2k\ntddkbd.inc
include c:\masm32\Macros\Strings.mac
includelib c:\masm32\lib\wxp\i386\ntoskrnl.lib
public DriverEntry
MyDeviceExtension struct
bExit DWORD ?
pThread PVOID ?
pNextDev PDEVICE_OBJECT ?
MyDeviceExtension ends
IOCTL_START equ CTL_CODE(FILE_DEVICE_UNKNOWN, 800h, METHOD_BUFFERED, FILE_ANY_ACCESS)
IOCTL_STOP equ CTL_CODE(FILE_DEVICE_UNKNOWN, 801h, METHOD_BUFFERED, FILE_ANY_ACCESS)
.const
MSG_START byte "IOCTL_START",0
MSG_STOP byte "IOCTL_STOP",0
.code
MyThread proc pParam : DWORD
local pdx : DWORD
local pStr : DWORD
local stTime : LARGE_INTEGER
or stTime.HighPart, -1
mov stTime.LowPart, -10000000
invoke IoGetCurrentProcess
add eax, 174h
mov pStr, eax
invoke DbgPrint, $CTA0("Current process: %s"), pStr
mov eax, pParam
mov eax, (DEVICE_OBJECT ptr [eax]).DeviceExtension
push eax
pop pdx
mov eax, (MyDeviceExtension ptr [eax]).bExit
.while (eax != TRUE)
invoke KeDelayExecutionThread, KernelMode, FALSE, addr stTime
invoke DbgPrint, $CTA0("Sleep 1s")
mov eax, pdx
mov eax, (MyDeviceExtension ptr [eax]).bExit
.endw
invoke DbgPrint, $CTA0("Exit MyThread")
invoke PsTerminateSystemThread, STATUS_SUCCESS
ret
MyThread endp
IrpOpenClose proc pMyDevice : PDEVICE_OBJECT, pIrp : PIRP
IoGetCurrentIrpStackLocation pIrp
movzx eax, (IO_STACK_LOCATION ptr [eax]).MajorFunction
.if eax == IRP_MJ_CREATE
invoke DbgPrint, $CTA0("IRP_MJ_CREATE")
.elseif eax == IRP_MJ_CLOSE
invoke DbgPrint, $CTA0("IRP_MJ_CLOSE")
.endif
mov eax, pIrp
and (_IRP ptr [eax]).IoStatus.Information, 0
mov (_IRP ptr [eax]).IoStatus.Status, STATUS_SUCCESS
fastcall IofCompleteRequest, pIrp, IO_NO_INCREMENT
mov eax, STATUS_SUCCESS
ret
IrpOpenClose endp
IrpIOCTL proc uses esi pMyDevice : PDEVICE_OBJECT, pIrp : PIRP
local hThread : DWORD
local pThread : PVOID
mov eax, pMyDevice
mov esi, (DEVICE_OBJECT ptr [eax]).DeviceExtension
IoGetCurrentIrpStackLocation pIrp
mov eax, (IO_STACK_LOCATION ptr [eax]).Parameters.DeviceIoControl.IoControlCode
.if eax == IOCTL_START
invoke DbgPrint, offset MSG_START
and (MyDeviceExtension ptr [esi]).bExit, 0
invoke PsCreateSystemThread, addr hThread, THREAD_ALL_ACCESS, NULL, -1, NULL, offset MyThread, pMyDevice
.if eax == STATUS_SUCCESS
invoke ObReferenceObjectByHandle, hThread, THREAD_ALL_ACCESS, NULL, KernelMode, addr (MyDeviceExtension ptr [esi]).pThread, NULL
invoke ZwClose, hThread
.endif
.elseif eax == IOCTL_STOP
invoke DbgPrint, offset MSG_STOP
mov (MyDeviceExtension ptr [esi]).bExit, TRUE
push (MyDeviceExtension ptr [esi]).pThread
pop pThread
mov eax, pThread
.if eax != NULL
invoke KeWaitForSingleObject, pThread, Executive, KernelMode, FALSE, NULL
invoke ObDereferenceObject, pThread
.endif
.endif
mov eax, pIrp
mov (_IRP ptr [eax]).IoStatus.Status, STATUS_SUCCESS
and (_IRP ptr [eax]).IoStatus.Information, 0
fastcall IofCompleteRequest, pIrp, IO_NO_INCREMENT
mov eax, STATUS_SUCCESS
ret
IrpIOCTL endp
Unload proc pMyDriver : PDRIVER_OBJECT
local szSymName : UNICODE_STRING
invoke RtlInitUnicodeString, addr szSymName, $CTW0("\\DosDevices\\MyDriver")
invoke IoDeleteSymbolicLink, addr szSymName
mov eax, pMyDriver
invoke IoDeleteDevice, (DRIVER_OBJECT ptr [eax]).DeviceObject
ret
Unload endp
DriverEntry proc pMyDriver : PDRIVER_OBJECT, pMyRegistry : PUNICODE_STRING
local pMyDevice : PDEVICE_OBJECT
local szDevName : UNICODE_STRING
local szSymName : UNICODE_STRING
mov eax, pMyDriver
mov (DRIVER_OBJECT ptr [eax]).MajorFunction[IRP_MJ_CREATE * (sizeof PVOID)], offset IrpOpenClose
mov (DRIVER_OBJECT ptr [eax]).MajorFunction[IRP_MJ_CLOSE * (sizeof PVOID)], offset IrpOpenClose
mov (DRIVER_OBJECT ptr [eax]).MajorFunction[IRP_MJ_DEVICE_CONTROL * (sizeof PVOID)], offset IrpIOCTL
mov (DRIVER_OBJECT ptr [eax]).DriverUnload, offset Unload
invoke RtlInitUnicodeString, addr szDevName, $CTW0("\\Device\\MyDriver")
invoke RtlInitUnicodeString, addr szSymName, $CTW0("\\DosDevices\\MyDriver")
invoke IoCreateDevice, pMyDriver, sizeof MyDeviceExtension, addr szDevName, FILE_DEVICE_UNKNOWN, 0, FALSE, addr pMyDevice
.if eax == STATUS_SUCCESS
mov eax, pMyDevice
or (DEVICE_OBJECT ptr [eax]).Flags, DO_BUFFERED_IO
and (DEVICE_OBJECT ptr [eax]).Flags, not DO_DEVICE_INITIALIZING
invoke IoCreateSymbolicLink, addr szSymName, addr szDevName
.endif
ret
DriverEntry endp
end DriverEntry
.end
app.asm
.386p
.model flat, stdcall
option casemap:none
include c:\masm32\include\windows.inc
include c:\masm32\include\masm32.inc
include c:\masm32\include\user32.inc
include c:\masm32\include\msvcrt.inc
include c:\masm32\include\kernel32.inc
include c:\masm32\include\w2k\ntddkbd.inc
include c:\masm32\Macros\Strings.mac
includelib c:\masm32\lib\user32.lib
includelib c:\masm32\lib\masm32.lib
includelib c:\masm32\lib\msvcrt.lib
includelib c:\masm32\lib\kernel32.lib
IOCTL_START equ CTL_CODE(FILE_DEVICE_UNKNOWN, 800h, METHOD_BUFFERED, FILE_ANY_ACCESS)
IOCTL_STOP equ CTL_CODE(FILE_DEVICE_UNKNOWN, 801h, METHOD_BUFFERED, FILE_ANY_ACCESS)
.const
DEV_NAME db "\\.\MyDriver",0
.data?
hFile dd ?
dwRet dd ?
.code
start:
invoke CreateFile, offset DEV_NAME, GENERIC_READ or GENERIC_WRITE, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0
mov hFile, eax
invoke DeviceIoControl, hFile, IOCTL_START, NULL, 0, NULL, 0, offset dwRet, NULL
invoke Sleep, 3000
invoke DeviceIoControl, hFile, IOCTL_STOP, NULL, 0, NULL, 0, offset dwRet, NULL
invoke CloseHandle, hFile
invoke ExitProcess, 0
end start
完成