Decoupling Dynamic Program Analysis From Execution in Virtual Environments

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Executive Summary

Analyzing the behavior of running programs has a wide variety of compelling applications, from intrusion detection and prevention to bug discovery. Unfortunately, the high runtime overheads imposed by complex analysis techniques makes their deployment impractical in most settings. The authors present a virtual machine based architecture called Aftersight ameliorates this, providing a flexible and practical way to run heavyweight analyses on production workloads. Aftersight decouples analysis from normal execution by logging nondeterministic VM inputs and replaying them on a separate analysis platform.

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