FASM练习代码

;import 构建


;练习之作..




format PE GUI 4.0


entry _start




;


;data section..


;




section '.data' data readable




lpCaption db 'test',0


lpText db 'hello world',0




;


;code section


;




section '.code' code readable executable




_start:




push 40h


push lpCaption


push lpText


push 0h


call [MessageBox]


push 0h


call [ExitProcess]




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;


;import section


;




section '.import' import data readable writeable




;IMAGE_IMPORT_DESCRIPTOR




dd 0, 0, 0, RVA user32_dll, RVA user_thunk


dd 0, 0, 0, RVA kernel_dll, RVA kernel_thuk


dd 0, 0, 0, 0, 0




; DLL Name




user32_dll db 'user32.dll',0


kernel_dll db 'kernel32.dll',0




; THUNK DATA


user_thunk:


MessageBox dd RVA msg_byname


dd 0




kernel_thuk:


ExitProcess dd RVA process_byname


dd 0




;import_Byname


msg_byname dw 0


db 'MessageBoxA',0




process_byname dw 0


db 'ExitProcess',0








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