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Copy pathvirtsectblXP.asm
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virtsectblXP.asm
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; Low Alignment PE for XP, with 85 sections, with the section table outside the file.
; Ange Albertini, BSD LICENCE 2009-2013
%include 'consts.inc'
IMAGEBASE equ 400000h
org IMAGEBASE
bits 32
SECTIONALIGN equ 4
FILEALIGN equ 4
istruc IMAGE_DOS_HEADER
at IMAGE_DOS_HEADER.e_magic, db 'MZ'
at IMAGE_DOS_HEADER.e_lfanew, dd NT_Headers - IMAGEBASE
iend
NT_Headers:
istruc IMAGE_NT_HEADERS
at IMAGE_NT_HEADERS.Signature, db 'PE', 0, 0
iend
istruc IMAGE_FILE_HEADER
at IMAGE_FILE_HEADER.Machine, dw IMAGE_FILE_MACHINE_I386
at IMAGE_FILE_HEADER.NumberOfSections, dw 82 ; 0 <= NumberOfSections <= 82 (varies with SizeOfOptionalHeader)
at IMAGE_FILE_HEADER.SizeOfOptionalHeader, dw SIZEOFOPTIONALHEADER
at IMAGE_FILE_HEADER.Characteristics, dw IMAGE_FILE_EXECUTABLE_IMAGE | IMAGE_FILE_32BIT_MACHINE
iend
OptionalHeader:
istruc IMAGE_OPTIONAL_HEADER32
at IMAGE_OPTIONAL_HEADER32.Magic, dw IMAGE_NT_OPTIONAL_HDR32_MAGIC
at IMAGE_OPTIONAL_HEADER32.AddressOfEntryPoint, dd EntryPoint - IMAGEBASE
at IMAGE_OPTIONAL_HEADER32.ImageBase, dd IMAGEBASE
at IMAGE_OPTIONAL_HEADER32.SectionAlignment, dd SECTIONALIGN
at IMAGE_OPTIONAL_HEADER32.FileAlignment, dd FILEALIGN
at IMAGE_OPTIONAL_HEADER32.MajorSubsystemVersion, dw 4
at IMAGE_OPTIONAL_HEADER32.SizeOfImage, dd 77000000h ; filesize <= SizeofImage <= 77000000h
at IMAGE_OPTIONAL_HEADER32.SizeOfHeaders, dd 2ch ; 2ch <= SIZEOFHEADERS < SIZEOFIMAGE
at IMAGE_OPTIONAL_HEADER32.Subsystem, dw IMAGE_SUBSYSTEM_WINDOWS_CUI
at IMAGE_OPTIONAL_HEADER32.NumberOfRvaAndSizes, dd 16
iend
istruc IMAGE_DATA_DIRECTORY_16
at IMAGE_DATA_DIRECTORY_16.ImportsVA, dd Import_Descriptor - IMAGEBASE
at IMAGE_DATA_DIRECTORY_16.IATVA, dd ImportsAddressTable - IMAGEBASE ; required under XP if no section
at IMAGE_DATA_DIRECTORY_16.IATSize, dd IMPORTSADDRESSTABLESIZE
iend
EntryPoint:
push message
call [__imp__printf]
add esp, 1 * 4
push 0
call [__imp__ExitProcess]
_c
message db " * Low alignment PE with a virtual section table (XP)", 0ah, 0
_d
Import_Descriptor:
_import_descriptor kernel32.dll
_import_descriptor msvcrt.dll
istruc IMAGE_IMPORT_DESCRIPTOR
iend
_d
kernel32.dll_hintnames:
dd hnExitProcess - IMAGEBASE
dd 0
msvcrt.dll_hintnames:
dd hnprintf - IMAGEBASE
dd 0
_d
hnExitProcess:
dw 0
db 'ExitProcess', 0
hnprintf:
dw 0
db 'printf', 0
_d
ImportsAddressTable:
kernel32.dll_iat:
__imp__ExitProcess:
dd hnExitProcess - IMAGEBASE
dd 0
msvcrt.dll_iat:
__imp__printf:
dd hnprintf - IMAGEBASE
dd 0
IMPORTSADDRESSTABLESIZE equ $ - ImportsAddressTable
_d
kernel32.dll db 'kernel32.dll', 0
msvcrt.dll db 'msvcrt.dll', 0
SIZEOFOPTIONALHEADER equ 10h + $ - IMAGEBASE ; bigger than the file itself !
; section table starts here...