Binary Code Analysis for Malware with Expansive Static Analysis and Dynamic Emulation

概要

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In this paper, we present a novel binary analysis method for malware which combines static and dynamic techniques. In the static phase, the target address of each indirect jump is resolved using backward analysis on static single assignment form of binary code. In the dynamic phase, those target addresses that are not statically resolved are recovered by way of emulation. The method is generic in the sense that it can reveal control flows of self-extracting/obfuscated code without requiring special assumptions on executables such as compliance with standard compiler models, which is requisite for the conventional methods of static binary analysis but does not hold for many malware samples. Our current attempt for using a hyperviser monitor as a dynamic analyser is also presented.
日本ソフトウェア科学会の論文