46 lines
834 B
NASM
46 lines
834 B
NASM
|
|
include 'format/format.inc'
|
|
|
|
format PE64 GUI
|
|
entry start
|
|
|
|
section '.text' code readable executable
|
|
|
|
start:
|
|
sub rsp,8*5 ; reserve stack for API use and make stack dqword aligned
|
|
|
|
mov r9d,0
|
|
lea r8,[_caption]
|
|
lea rdx,[_message]
|
|
mov rcx,0
|
|
call [MessageBoxA]
|
|
|
|
mov ecx,eax
|
|
call [ExitProcess]
|
|
|
|
section '.data' data readable writeable
|
|
|
|
_caption db 'Win64 assembly program',0
|
|
_message db 'Hello World!',0
|
|
|
|
section '.idata' import data readable writeable
|
|
|
|
dd 0,0,0,RVA kernel_name,RVA kernel_table
|
|
dd 0,0,0,RVA user_name,RVA user_table
|
|
dd 0,0,0,0,0
|
|
|
|
kernel_table:
|
|
ExitProcess dq RVA _ExitProcess
|
|
dq 0
|
|
user_table:
|
|
MessageBoxA dq RVA _MessageBoxA
|
|
dq 0
|
|
|
|
kernel_name db 'KERNEL32.DLL',0
|
|
user_name db 'USER32.DLL',0
|
|
|
|
_ExitProcess dw 0
|
|
db 'ExitProcess',0
|
|
_MessageBoxA dw 0
|
|
db 'MessageBoxA',0
|