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 Forums >>  Brainstorms - General  >>  More Advanced Unpacking - Part I

Topic created on: January 21, 2008 10:29 CST by frankboldewin .

Unbelievable but true. After 4 months of getting owned by other things making my life mad, i finally managed to release a new unpacking tutorial. This one goes far more into depth as the beginners tutorial i have released last year. It aims to show some generic tricks and tools, that can be used on many other protectors. Enjoy!

http://www.reconstructer.org/papers/More%20advanced%20unpacking%20-%20Part%20I.zip

hope the next part won't take so long. ;)

  GynvaelColdwind     January 23, 2008 04:46.16 CST
Very nice ;> Thanks for sharing ;>
(I admit, I didn't know about DiE/exeinfope/RDG Packer Detector... I used PEiD always hehe)

  j00ru     January 23, 2008 07:57.37 CST
Yeah, well made unpacking tutorial ;-)
Looking forward the next part!

  sp     January 24, 2008 06:31.27 CST
Cool video. Thanks for sharing it. Maybe I'll start to unpack files the "proper" way now. :)

  gantanhao     January 24, 2008 09:00.11 CST
thanks for sharing it!i will remeber you!

  NeOXQuiCk     January 24, 2008 10:53.47 CST
nice tut ..if you use ExLog, its easy so you dont have to press 20 times before you reach to the end..

ExLog, a simple exception spy able to log the exceptions that occur in a process.

It logs general exception information including a CONTEXT dump and disassembles the instructions that generated the exception.

Secondly it can be used to halt execution in the middle of the unpacking phase.
If a packers generates 50 exceptions during unpacking, ExLog can be used to halt execution on that 50th exception.
It pops up a messagebox when that exception is reached where you can attach a debugger.
You can then start tracing untill you reach OEP.



bye

  beginn3r   January 26, 2008 05:41.30 CST
I realized that the ollydbg that came together with the tutorial is not the same as the one being used in the video .. it's smaller and packed and my AV stopped it from trying to modify some registry...

  frankboldewin     January 26, 2008 15:45.54 CST
> beginn3r: I realized that the ollydbg that came together with the tutorial is not the same as the one being used in the video .. it\'s smaller and packed and my AV stopped it from trying to modify some registry...

no worries. i packed the executables with the bero packer. that's all. apart from that they are the original binaries.

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