• Title/Summary/Keyword: Position-independent code (PIC)

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A Disassembly Technique of ARM Position-Independent Code with Value-Set Analysis Having Symbol-Form Domain (기호 형태의 값-집합 분석을 이용한 ARM 위치 독립적 코드의 정교한 역어셈블리 기법)

  • Ha, Dongsoo;Oh, Heekuck
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.28 no.5
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    • pp.1233-1246
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    • 2018
  • With the proliferation of smart mobiles, disassembly techniques for position-independent code (PIC) composed of ARM architecture instructions in computer security are becoming more important. However, existing techniques have been studied on x86 architecture and are focused on solving problems of non-PIC and generality. Therefore, the accuracy of the collected address information is low to apply to advanced security technologies such as binary measurement. In this paper, we propose a disassembly technique that reflects the characteristics of PIC composed of ARM instructions. For accuratly collecting traceable addresses, we designed value-set analysis having symbol-form domain. To solve the main problem of disassembly, we devised a heuristic using the characteristics of the code generated by the compiler. To verify the accuracy and effectiveness of our technique, we tested 669 shared libraries and executables in the Android 8.1 build, resulting in a total disassembly rate of 91.47%.