Author Topic: How do you decode file formats?  (Read 10237 times)

Anonymous

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How do you decode file formats?
« on: 2001-09-02 20:48:00 »
Well? do you have a program that shows what areas of a file are being accessed when you perform a certain function or something? Or do you just modify it and see what it changes? If there are useful programs, could you tell me where to get them?

Anonymous

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How do you decode file formats?
« Reply #1 on: 2001-09-03 00:17:00 »
hmmmm......i guess this is remake only type stuff. Oh well....

The SaiNt

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How do you decode file formats?
« Reply #2 on: 2001-09-03 08:43:00 »
Uhm...there's no easy way around it honestly.
Hmm..I let the professionals;halkun & fice tell you about it  :wink:

halkun

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How do you decode file formats?
« Reply #3 on: 2001-09-03 16:30:00 »
Wow! I wrote about this soooo ling ago. (Like when I had 5 or 6 posts to my name. I was trying to make a quake movie and was working on ripping the characters from FF8. Actually I was attempting to decode the .x files for the battles, as there seemed to be a 3d version of every scene in FF8.

The nutshell most if it is pattern finding. Also remeber that programmers and inharently lazy and much that you can find about a file format is common scense. Now I usally use a data visualizer to see "chunks" in a file, find a particular chunk, change a varible, and run. Also if you have a hex editor, try different witdths and data groupings and see if you find any patterens. I don't do memory hacking unless it's on a PSX. Look for my originak post and you'll kind of get it.


Alhexx

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How do you decode file formats?
« Reply #4 on: 2001-09-03 18:20:00 »
I'm mostly using a sime Hex-Editor. I compare a lot of different files (ie. 5) and then I try to find differences. It's a lot of crappy work...   :wink:

- Alhexx

- edit -
sime -> simple  :wink:

[This message has been edited by Alhexx (edited September 03, 2001).]


Anonymous

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How do you decode file formats?
« Reply #5 on: 2001-09-03 21:39:00 »
waoh......i came here in early march......

Hmmmm........Cant find it in tech related......


mirex

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How do you decode file formats?
« Reply #6 on: 2001-09-04 20:15:00 »
I use hexViewer(DosNavigator), and look on tha data, and keeping looking for some patterns, counting things, drawing pictures of data ...

So i use combination hexView + brain + time.
That solves everything  :)


Alhexx

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How do you decode file formats?
« Reply #7 on: 2001-09-04 22:17:00 »
Yeah, that's the way it goes, mirex!

That are the most important *tools* of a file hacker - HexEditor, Brain and a LOT of time (and of course: patience)

- Alhexx


Anonymous

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How do you decode file formats?
« Reply #8 on: 2001-09-05 01:49:00 »
speaking of hex-editors.....know any free ones?

How do you decode file formats?
« Reply #9 on: 2001-09-05 20:55:00 »
I've been using Hexpose. It's fairly old, and is often used for NES ROM Hacking, but it's free, runs pretty fast, and has the TBL feature... The others may know of a better prog.
 http://www.zophar.net/utilities/nesutil.html" TARGET=_blank>http://www.zophar.net/utilities/nesutil.html

I've also heard stuff about a similar editor called Thingy, but I've never bothered to track it down.


Alhexx

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How do you decode file formats?
« Reply #10 on: 2001-09-06 16:22:00 »
Hm, I'm not using freeware Hex-Editors, I'm using UltraEdit 8 and HexWorks (Hex Workshop). I'm using both, b'cause

1. Ultraedit is good to compare 2 files, you see the differences in the files very well.

2. I use HexWorks for viewing the values of the offsets, b'cause Ultraedit doesn't do that (or at least I don't know how  :wink: )

- Alhexx


Anonymous

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How do you decode file formats?
« Reply #11 on: 2001-09-07 02:16:00 »
alhexx- i used to do that. then the demos ran out and i dont have skillz.

The SaiNt

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How do you decode file formats?
« Reply #12 on: 2001-09-07 09:32:00 »
Uhm, Hex-Workshop can also compare files  :)

mirex

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How do you decode file formats?
« Reply #13 on: 2001-09-07 10:37:00 »
The tool im using is Dos Navigator, its not a hex-editor - it is file commander, but it has lots of great tools in it. And like it sounds, it is for Dos (but works in windows too). As there is in one file mentioned 'A best shell a man can get'.
But, I think it is not free.  :(

Alhexx

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How do you decode file formats?
« Reply #14 on: 2001-09-07 16:51:00 »
SaiNt: Yes, I know. But that wasn't what I wanted to say:
If you open 2 or more files, then under Hex-Works the files are displayed in 2 (or more) windows. Under Ultraedit, every File has its own tab.

- Alhexx