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1. (WO2018199366) METHOD AND SYSTEM FOR DETECTING WHETHER OBFUSCATION HAS BEEN APPLIED TO DEX FILE AND EVALUATING SECURITY

Pub. No.:    WO/2018/199366    International Application No.:    PCT/KR2017/004584
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Sat Apr 29 01:59:59 CEST 2017
IPC: G06F 21/57
Applicants: LINE CORPORATION
라인 가부시키가이샤
Inventors: AHN, Sungbeom
안성범
KIM, Tae Woo
김태우
CHUNG, Myungju
정명주
JEON, SangHun
전상훈
CHUNG, Sang Min
정상민
LIM, Seong Yeol
임성열
HAN, Kwang-Hee
한광희
SEO, Dongpil
서동필
RYU, Joo Hyeon
류주현
Title: METHOD AND SYSTEM FOR DETECTING WHETHER OBFUSCATION HAS BEEN APPLIED TO DEX FILE AND EVALUATING SECURITY
Abstract:
A method and a system for detecting whether obfuscation has been applied to a DEX file and evaluating security are provided. The security evaluation method can comprise the steps of: registering an Android application package (APK); searching a DEX file, included in the APK, for an application class; checking whether to call an application programming interface (API) for loading another DEX file further included in the APK, on the basis of a class and a method called by a body instruction of a method included in the application class; and determining that obfuscation has been applied to the DEX file, when the existence of API calling for loading another DEX file is confirmed.