[Autogenerated] Once the system restarts after a blue screen or a green screen.
What can we do with the down file So essentially we're going to open,
that with win debug and what we get here,
is a similar environment to local kernel debugging.
However, we have to Remember this is just a snapshot of memory,
which means there's no way.
To set up break points.
There's no meaning.
To the go command.
There's nothing like that It's just a snapshot of memory.
But still we can see all the processes.
That were running at the time.
All the threads, and other information, that is part of the dump.
Of course, assuming it,
is part of the dump because some things might not be there.
Maybe I took a kernel dump, which is the normal dump.
That we get using the automatic option if I try to look,
up user mode memory, I'll get nothing.
So it really depends on the type of dump.
But other than that most of the commands we're familiar with in
local co debugging or remote channel debugging work,
just as Well with a dump, file So we open the dump,
file with win debug and the debugger is going to suggest
running this command called analyze dash V,
and that analyzed command will try to analyze the blue screen for us.
And provide some insights as we'll see.
In the Next demo, the analyzed dash V by default,
is not very super smart command.
I would say it.
Only provides very superficial information,
that we can get ourselves pretty quickly also.
But in general this command, is actually extensible.
Its its possible to write an extension DLL,
to win debug that can plug into analyze dash V,
and provide further analysis.
However, I am not currently aware of any such plugins available.
Uh in the wild now, if the system hanged,
which seems kind of weird, how can the system hang?
And get a blue screen, um all in the Same time.
In fact,
it is not possible per se but SSH show later on how we can
get a blue screen or a down file to be more precise if the
system is completely hung.
And If this is the case you can append the hang value.
To the analyzed dash V command, it will perform some extra analysis.
Trying to Find out whether there are some deadlocks, that occurred.
In the system by examining virus synchronization primitives for simple cases,
the culprit, that caused the blue screen will be on the stack of the thread.
That caused the exception in more complex cases.
That might not be the case.
And the only thing we will see on the on the call stack our
kernel modules which might lead us to believe,
that the kernel has a bug.
We have found it.
Maybe we can tell, that to Microsoft They will give us lots of money,
but in most cases, this is not really what happened.
Usually see what we get.
Is a is a state where some driver did something.
That wasn't fatal, but later on once the colonel stumbled upon it.
Call the blue screen, and We'll see an Example later on for now,
let's see what happens when we open the dump.
File that We just generated in the Previous demo.