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Identifying thread/process termination

DISCUSSION L. A. Walsh 1 participant 1 message Nov 20, 2020

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Quoted 5 lines · Paul Moore

The most important thing to keep in mind is that all of the threads inside a process share the same memory space. It is the lack of a strong, enforceable boundary between threads which makes it difficult, if not impossible, to view threads as individual entities from a security perspective.

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Depends on how much your security policy relies on recognizing
abnormal behavior. If a program splits function across well defined areas by a named thread, one may develop a baseline of "normal" functionality associated with given threads. Determining that a thread is operating outside it's normal range can allow for a earlier detection and better monitoring of "safe" and/or secure operation.

How programs operate, especially in regards to what work is
normal for a given thread can only be done with thread level monitoring. While given threads _can_ access global-user memory, that involves how they are coded or programmed to run. That, in turn, can be used to help define boundaries and integrity levels of various processes in a system.

For example, even though a logging thread might gather data
from other threads, knowing that it can only write to output to specific configured destinations would allow swift detection of aberrations.

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