Flag: Tornado! Hurricane!

 Forums >>  IDA Pro  >>  Looking for value in memory, breakpoint crashing

Topic created on: December 13, 2011 14:17 CST by mcz .

I want to set a read/write breakpoint on specific memory adress. I always know what value it contains but I can't find it using IDA. There is no problem when I look for it with Cheat Engine.

When I try to set hardware (read/write) breakpoint on adress found in CE application crashes with message like:
"Address: The insutrction at 0xAddress referenced memory at 0xSomeOtherAdress. The memory could not be written (...)"

I can't even jump (Jump to adress...) there. I get "Command "JumpAsk" failed" message.

What's wrong?

  NirIzr     January 11, 2012 07:01.39 CST
this is probably because some anti-debugging tricks catch you, and change the program's behavior in a way that doesn't terminates smoothly but triggers an invalid memory access later in code. (for example not allocating a structure and later attempting to access it without validation)

Note: Registration is required to post to the forums.

There are 28,631 total registered users.


Recently Created Topics
windbg - olly/immunity
May/14
Reverse a WinRAR pac...
May/13
Add comments to resu...
May/10
can we code script ...
May/09
Type Casting Structu...
May/07
How to Reverse Engin...
May/03
Sulley on OS X (10.7)
May/01
Help me guys
May/01
IDA Resource Viewer ...
Apr/28
How do i use plugins...
Apr/27


Recent Forum Posts
windbg - olly/immunity
blowcheck
Help me guys
Olivier
Reverse a WinRAR pac...
NirIzr
windbg - olly/immunity
anonymouse
Reverse a WinRAR pac...
DriEm
Add comments to resu...
phn1x
IDA Resource Viewer ...
DriEm
Add comments to resu...
qiuhan
IDA Resource Viewer ...
waleeda...
IDA Resource Viewer ...
DriEm


Recent Blog Entries
waleedassar
Apr/20
OllyDbg NumberOfSections Crash

icegood
Apr/13
Advanced labels plugin for ...

waleedassar
Mar/31
GetModuleFileNameEx And Inf...

waleedassar
Mar/31
OllyDbg v1.10 And Wow64

waleedassar
Mar/29
OllyDbg Resource Table Pars...

More ...


Recent Blog Comments
raxen on:
Mar/27
Anti-Dumping

Dallas on:
Mar/22
ChapljaVM Code Obfuscator

Dallas on:
Mar/22
Hack stuff, get paid

Dallas on:
Mar/22
Exe Packer TAGGANT system f...

Dallas on:
Mar/22
Olly2 SystemTray Plugin

More ...


Imagery
SoySauce Blueprint
Jun 6, 2008

[+] expand

View Gallery (11) / Submit