NTSTATUS 0x40010008 (DBG_CONTROL_BREAK): meaning and diagnosis

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Description:

The debugger received a Ctrl+Break console control event associated with the target process.

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DBG_RIPEXCEPTION	DBG_COMMAND_EXCEPTION

DBG_CONTROL_BREAK

Ctrl+Break interrupted the debuggee

Ctrl+Break is commonly used to interrupt a console process without applying the same default semantics as Ctrl+C. Under a debugger it can arrive as a debug exception, allowing the debugger to stop all relevant execution, inspect state, or pass the event onward.

The event can be intentional, for example a user requesting a debugger break, or external to the application. Treat it as a control event and preserve the stopped thread context before deciding how to continue.

What to inspect

Confirm whether the debugger maps Ctrl+Break to a user break-in operation.
Record the thread selected for the debug event and the state of other threads.
Determine whether the application has a console control handler that should receive the event.
Avoid confusing the status with a breakpoint instruction or kernel debugger break.

References

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