Code obfuscation

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HyperVista

Joined: 18 Apr 2005
Posts: 691
Location: Virginia, USA

HyperVista 07 Sep 2006, 12:40

edited by vid - splitted from Party topic in Heap section

Quote:

But don't forget I'll be just a mascot, sitting in the corner, watching the turmoil

me too!

funny that you should mention code obfuscation. i was just reading the other day this article, which you might find interesting.

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07 Sep 2006, 12:40

tom tobias

Joined: 09 Sep 2003
Posts: 1320
Location: usa

tom tobias 07 Sep 2006, 12:54

Quote:

something simple about x86 code obfuscation and we'll see if there is some time and some interest in it since it is not related to FASM

As an expert on obfuscation, and the author of this witty expression, I object to your usurpation of my ditty, without acknowledging my supposedly nefarious attempt to link same to fasm, since FASM is surely the pre-eminant example of cryptic code on the net. If I am not present in person, to imbibe sufficient pilsner to ignore this egregious insult, then I promise a fifteen minute address by instant messager on the late Professor Dandamudi's excellent books, perhaps restricting my comments to his last book: Guide to Assembly language programming in Linux (Springer, 2005), comparing his methods and lessons to Blum's work on the same topic Wrox, 2005).
Confused

(prePilsner)
Shocked

(Pilsner)

(post Pilsner Urquelle)

07 Sep 2006, 12:54

vid
Verbosity in development

Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia

vid 07 Sep 2006, 12:55

Quote:

i was just reading the other day this article, which you might find interesting.

at first quick peek, it's too theoretical, and not even a little practical

you will be surprised how practical will mazegen's example be Wink

Quote:

even greater security may be obtained by maintining the software in encrypted form and decrypting it as needed druing exectuion... such approach have disadvantage of high perfformace overhead

bullshit

07 Sep 2006, 12:55

tom tobias

Joined: 09 Sep 2003
Posts: 1320
Location: usa

tom tobias 07 Sep 2006, 13:09

Quote:

funny that you should mention code obfuscation. i was just reading the other day this article

Yes, the article on obfuscation by Linn and Debray from University of Arizona was sent to Tomasz for review, but no one could comprehend his evaluation.... Razz

07 Sep 2006, 13:09

MazeGen

Joined: 06 Oct 2003
Posts: 977
Location: Czechoslovakia

MazeGen 07 Sep 2006, 13:25

HyperVista wrote:

funny that you should mention code obfuscation. i was just reading the other day this article, which you might find interesting.

As for the article, I have that one and few more which I collected in past few years (there were only few interesting articles about obfuscation). Let me know if you are interested, I can post them to you somehow.

vid wrote:

you will be surprised how practical will mazegen's example be

Don't make them too hungry, I'm not sure how convincing my presentation can be...

07 Sep 2006, 13:25

okasvi

Joined: 18 Aug 2005
Posts: 382
Location: Finland

okasvi 07 Sep 2006, 13:40

MazeGen, I would be interested of articles that have more practical example without forgetting the technical side of it...

If you can, could you email some of them to me?

07 Sep 2006, 13:40

f0dder

Joined: 19 Feb 2004
Posts: 3175
Location: Denmark

f0dder 07 Sep 2006, 22:01

I'd be interested as well.

07 Sep 2006, 22:01

MazeGen

Joined: 06 Oct 2003
Posts: 977
Location: Czechoslovakia

MazeGen 08 Sep 2006, 11:51

That's all I have. It is quite a poor list finally, but it is probably all what you can find about x86 obfuscations on the net Sad

General Method of Program Code Obfuscation (2002)
Obfuscation of Executable Code to Improve Resistance to Static Disassembly (2003)
Static Analysis of Executables to Detect Malicious Patterns (2003)
Z0mbie 'Permutation conditions' (VX heavens)

Please let me know if you are aware of any other articles.

08 Sep 2006, 11:51

HyperVista

Joined: 18 Apr 2005
Posts: 691
Location: Virginia, USA

HyperVista 08 Sep 2006, 12:56

MazeGen - i'll bring this book with me to Krakow for you. you can check the table of contents and some chapters via this link:

http://www.amazon.com/Crackproof-Your-Software-Against-Crackers/dp/1886411794

08 Sep 2006, 12:56

MazeGen

Joined: 06 Oct 2003
Posts: 977
Location: Czechoslovakia

MazeGen 08 Sep 2006, 13:09

I know that book and its author. Initially, it was released in Czech. It can be interesting, but a bit outdated now.

And I've sended you a PM, HyperVista Smile

08 Sep 2006, 13:09

vid
Verbosity in development

Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia

vid 08 Sep 2006, 13:17

looooooooooooooooooooooooOOOOOOOOOooooooooooool

08 Sep 2006, 13:17

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