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miau/compiler.rb

Created June 19, 2011 08:31
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compiler.rb
# -*- coding: utf-8 -*-
base = File.open("base.exe", "rb").read
# text->Misc.VirtualSize = 6;
base[0x180, 4] = [6].pack("I")
# 取り出すときは base[0x180, 4].unpack("I")
# image[0x200] = 0xb8;
# *(DWORD*)&image[0x201] = 123;
# image[0x205] = 0xc3;
base[0x200, 6] = [0xb8, 123, 0xc3].pack("CIC")
File.open("output.exe", "wb").write(base)
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