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I need some explanation for X32dbg -SEH- & -Watch-

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Posted

Dear members,

my question is about the use of X64dbg (32 or 64 bit any of them)

1- Can anyone, please help me understand the concept behind SEH (structured exception handler) and whether we can use it to reverse an application?

2- and how to use the "watch" feature in x32dbg, I tried it in many ways without prevail...

A video tut would be very much appreciated.

 

Try googling took me less than a second to find this out.. don't be lazy.. i only googled "structured exception handler" and found plenty of info..

  • Author

Thanks for your reply , 

I searched many times and read many papers but my question is limited to using SEH in reversing applications . 

Googling gives lots of useful resources for that one too: https://www.google.com/search?q=SEH+reversing

Perhaps you should ask a more specific question, not just "Can I use chip tuning to make my car go faster? My question is limited to petrol engines." :)

 

  • Author
3 hours ago, kao said:

Googling gives lots of useful resources for that one too: https://www.google.com/search?q=SEH+reversing

Perhaps you should ask a more specific question, not just "Can I use chip tuning to make my car go faster? My question is limited to petrol engines." :)

 

:lol::lol:, "kao" you're very funny.

thank you for passing by, let me google little more and post my question more specifically.

anyway can give me any hints for my second question?

Your second question is more for @mrexodia - I'm not using that feature.

I think you'd get an answer faster if you'd ask it in x64dbg subforum: https://forum.tuts4you.com/forum/139-x64dbg/

 

The watch view allows you to watch changes to the value of an expression. See http://help.x64dbg.com

As an example you can set a watch on [402030] and it will watch the dword at 402030 you also have a watchdog feature that will log changes to the expression. Usage should be pretty easy, just add the expression you want to watch and enable the watchdog. Combined with tracing you can see various values in memory and how they change during the trace.

As for SEH (not enabled in 64 bit because that uses static SEH) you can see the current exception handler value. You can also see this in the stack this is for example used with try/catch in C/C++

Edited by mrexodia

@samoray u can also use the manual available in x64 debugger-: "x64dbg_manual.chm"

     for full details see "watch control" in "commands".

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