RE: [GD-General] Is it possible to detect debugging?

[Mat N. \(BUNGIE\) <mat...@mi...>]

No. WinDBG and kd can attach in noninvasive mode and generate a full
minidump, even if the process has attached to itself as a debugger.

MSN

-----Original Message-----
From: gam...@li...
[mailto:gam...@li...] On Behalf Of
Colin Fahey
Sent: Thursday, October 09, 2003 9:59 AM
To: gam...@li...
Subject: [GD-General] Is it possible to detect debugging?


Can a Windows application determine if it is being debugged?
Naturally it can't do anything if it has been suspended at a breakpoint,

but I'm wondering if there is a way, during execution, to check for
debugging.

Sorry, it has been a while since I was in to Windows process information
stuff, so I forget all the cool things a process can do.

Anyhow, let's say the application is started.  Meanwhile, something like
Visual C++ has already been started, or is now started.  Some time=20
during the execution of the application, the user of Visual C++ uses=20
the "Attach to Process..." option, and selects the application.
Is there any way for the application to detect that it is being
debugged,
assuming it has not been immediately paused?

The method cannot depend on any particular debugger (like checking for=20
certain states of, say, Visual Studio).  But I assume that many
debuggers
work the same way -- although the 1337 haX0r might run the whole app in=20
an 80x86 emulator...

I don't really have any particular objective, like popping up a dialog
to embarrass the first haX0r who attempts to crack my application.
I'm just making conversation.  Relax!  Talk amongst yourselves!

--- Colin

cp...@ea...




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