Security

IntroLib: Efficient and Transparent Library Call Introspection for Malware Forensics

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Executive Summary

Dynamic malware analysis aims at revealing malware's runtime behavior. To evade analysis, advanced malware is able to detect the underlying analysis tool (e.g., one based on emulation.) On the other hand, existing malware-transparent analysis tools incur significant performance overhead, making them unsuitable for live malware monitoring and forensics. In this paper, the authors present IntroLib, a practical tool that traces user-level library calls made by malware with low overhead and high transparency. IntroLib is based on hardware virtualization and resides outside of the guest virtual machine where the malware runs.

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