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41 lines
1.1 KiB
Python
41 lines
1.1 KiB
Python
#!/usr/bin/env python3
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from modules.logger import logger
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import struct
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# Declare a class that can automatically convert virtual executable addresses
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# to file addresses
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class Bin:
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file = None
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def __init__(self, filename):
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logger.debug('Parsing headers of "%s"... ', filename)
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self.file = open(filename, 'rb')
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#HACK: Strictly, we should be parsing the header, but we know where
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# everything is in these two files so we just jump straight there
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# Read ImageBase
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self.file.seek(0xB4)
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self.imagebase, = struct.unpack('<i', self.file.read(4))
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# Read .text VirtualAddress
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self.file.seek(0x184)
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self.textvirt, = struct.unpack('<i', self.file.read(4))
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# Read .text PointerToRawData
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self.file.seek(0x18C)
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self.textraw, = struct.unpack('<i', self.file.read(4))
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logger.debug('... Parsing finished')
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def __del__(self):
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if self.file:
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self.file.close()
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def get_addr(self, virt):
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return virt - self.imagebase - self.textvirt + self.textraw
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def read(self, offset, size):
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self.file.seek(self.get_addr(offset))
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return self.file.read(size)
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