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Using Optimization Algorithms For Malware Deobfuscation

Teddy Rogers

About This File

Analysis of malware binaries is constantly becoming more difficult with introduction of many different types of code obfuscators. One common theme in all obfuscators is transformation of code into a complex representation. This process can be viewed as inverse of compiler optimization techniques and as such can be partially removed using optimization algorithms. This paper presents common obfuscation techniques and a process of adapting optimization algorithms for removing obfuscations. Additionally, a plug-in for the IDA Pro disassembler is presented that demonstrates usability of the proposed optimization process as well as a set of techniques to speed up the process of analyzing obfuscated code.

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