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Old 05-09-2007, 07:47 AM
Shub-Nigurrath Shub-Nigurrath is offline
Join Date: Feb 2004
Posts: 12
Default Primer for symbian reversing

Hi all,
despite the tutorial has been release since a few months I profit of the last update to version 1.2 to post it also here. I forgot previously to do here too

I would also remind that on Arteam we just opened a new section on smartphone stuffs.

Hi everybody,
after a long working finally the first tutorial on Symbian has been published. It's a long one, as you will soon see.
In my mind this would help to start a long series of contributions and discussion and possibly other tutorials.

Primer on Reversing Symbian S60 Applications.
Unfortunately the Symbian scene is not so prolific of tutorials and what I found after a lot of searching and talking with others
guys are just a few simple and quite old tutorials and few advanced things, mostly not written in English.
I decided then to take a long journey into this world, examining which tools you can use to disassemble the Symbian programs, how
to approach to them and what generally you can do to create and distribute patches for those applications.

I started from the ground up, just because as said there were no discussion forum like our (at least I have not found them) where
one can ask, the present special issue collects a series of single tutorials I wrote with different targets and difficulty levels.
Probably the few Symbian groups around will laugh at me for the simple or even not correct approach, but as usual if one knows
things better he should write a tutorial to demonstrate it.
The tutorial will cover different issues:
- Few words on the Symbian OS
-What instruments we have and what to use and customize them (particularly IDA)
-Practical examples of real applications
I also included a long list of references and further readings, as usual.

BTW consider also that the approach used for the java application example, is a general one, good for all java apps.
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Old 07-26-2007, 05:21 AM
Shub-Nigurrath Shub-Nigurrath is offline
Join Date: Feb 2004
Posts: 12

Hi all,
an update to the tutorial is online today:

Version 1.4 added desquirr and example on its usage
- Added introduction to desquirr ( 2.5.6)
- Used desquirr to help the reversing process ( 3.1.1)
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Old 12-21-2007, 09:12 AM
levieux levieux is offline
Junior Member
Join Date: Dec 2007
Posts: 1

Thank you for this great tutorial.

I am trying to reverse a symbian 9 3rd ed application and i am stuck at some point. Exports in the application's dlls are marked to be in offsets which are out of the disassembled sections.
For example, for one of these dlls, one export is at 0x10304 while IDA has disassembled using 0x8000 segment base. I never played with symbian before and i dont know if this is normal (like in win32 virtual/real adress) or not.
Can you tell me if this is normal or not, and if it's normal, is there a tool where i can see the export table and the eventual virtual/real offsets mapping? If no, is it a bug in IDA?

Thank you.
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