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 Forums >>  Brainstorms - General  >>  How would you interpret the data codes in a disassembly?

Topic created on: December 26, 2013 03:46 CST by luckiejacky .

Sometimes they could mean patterns in a bitmap,
Sometimes they could mean patterns of fonts,
Sometimes they could mean keystrokes and so on so forth.
Is it the only way to decipher one by one all by hand?
Or there is an automated tool for this
For example:
data_326 dw 0
db 18 dup (0)
db 90h, 00h, 00h, 00h, 00h, 00h
db 90h, 00h, 00h, 00h, 00h, 00h
db 00h,0FFh, 00h, 00h, 90h
db 16 dup (0)
db 16 dup (0FFh)
They are just a bunch of numbers, how would you know
what they could mean?
Thanks

  mbin   December 28, 2013 08:29.02 CST
I usually look for a pattern. For example, I know that consecutive bytes between 0x20 and 0x7e could represent an ASCII string. Also considering the endianess, a four-byte sequence like 00 00 00 ff could represent a 32-bit integer. Considering Intel ASM, 0x90 could be a NOP instruction. You must look around to infer a context. That should be a nice research but I don't have the necessary skills to to that. :)

Bye

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