📚 OpenRCE is preserved as a read-only archive. Launched at RECon Montreal in 2005. Registration and posting are disabled.








Flag: Tornado! Hurricane!

 Forums >>  Debuggers  >>  Non invasive debugging ?

Topic created on: July 2, 2009 13:25 CDT by sft .

Hey,
I'm trying to debug some application but it seems to be quite restricted while being debugged, I've stripped most of it's protections (it's win32-based PE) yet the debugger keeps failing at debugging what's needed
I've digged a bit and found that there's something called "non-invasive debugging" is there any debugger out implemented that way (beside windbg) for win32 ?

Thanks in advance

  GynvaelColdwind     July 2, 2009 14:09.52 CDT
Hi,

Check this out:
http://deneke.biz/obsidian

Hmm, I wouldn't call it 'non-invasive' (the author calls it non-itrusive, but its almost the same), but it's interesting anyway, since it is not using Debugger API nor ring0 tricks.

However I did have some trouble using it ;< Hope you'll have better luck!

Take care!
G.C.

  Soul12     July 2, 2009 17:22.09 CDT
or you could take a look here

http://www.reverse-engineering.info/PE_Information/Crackers_Guide_To_Program_Flow.pdf

  Soul12     July 2, 2009 17:22.10 CDT
<ups double post>

  PeterFerrie     July 5, 2009 00:39.26 CDT
CreateToolhelp32Snapshot is very intrusive, since it inserts a thread in the target process, in order to gather certain information about that process.  This new thread is detected easily by the target process, and can cause a hostile reaction.  NtQueryInformationProcess should be used instead.

Note: Registration is required to post to the forums.

There are 31,328 total registered users.


Recently Created Topics
[help] Unpacking VMP...
Mar/12
Reverse Engineering ...
Jul/06
let 'IDAPython' impo...
Sep/24
set 'IDAPython' as t...
Sep/24
GuessType return une...
Sep/20
About retrieving the...
Sep/07
How to find specific...
Aug/15
How to get data depe...
Jul/07
Identify RVA data in...
May/06
Question about memor...
Dec/12


Recent Forum Posts
Finding the procedur...
rolEYder
Question about debbu...
rolEYder
Identify RVA data in...
sohlow
let 'IDAPython' impo...
sohlow
How to find specific...
hackgreti
Problem with ollydbg
sh3dow
How can I write olly...
sh3dow
New LoadMAP plugin v...
mefisto...
Intel pin in loaded ...
djnemo
OOP_RE tool available?
Bl4ckm4n


Recent Blog Entries
halsten
Mar/14
Breaking IonCUBE VM

oleavr
Oct/24
Anatomy of a code tracer

hasherezade
Sep/24
IAT Patcher - new tool for ...

oleavr
Aug/27
CryptoShark: code tracer ba...

oleavr
Jun/25
Build a debugger in 5 minutes

More ...


Recent Blog Comments
nieo on:
Mar/22
IAT Patcher - new tool for ...

djnemo on:
Nov/17
Kernel debugger vs user mod...

acel on:
Nov/14
Kernel debugger vs user mod...

pedram on:
Dec/21
frida.github.io: scriptable...

capadleman on:
Jun/19
Using NtCreateThreadEx for ...

More ...


Imagery
SoySauce Blueprint
Jun 6, 2008

[+] expand

View Gallery (11) / Submit