Reverse analysis of Wangxin application based on android platform

Yu Shi; Lulin Ni II; Qingbing Ji III

doi:10.1117/12.2637666

24 May 2022 Reverse analysis of Wangxin application based on android platform

Yu Shi, Lulin Ni II, Qingbing Ji III

Author Affiliations +

Proceedings Volume 12260, International Conference on Computer Application and Information Security (ICCAIS 2021); 122601O (2022) https://doi.org/10.1117/12.2637666
Event: International Conference on Computer Application and Information Security (ICCAIS 2021), 2021, Wuhan, China

Abstract

Wangxin application is an instant messaging software launched by Alibaba Group that can support Windows, Android, and iOS operating systems, and its chat messages are stored in the local folders of smart terminals. In this paper, we study the encryption protocol of the Wangxin application and propose a reverse analysis scheme for the Wangxin application. Since the data encryption such as chat messages are stored in the database, we analyze the encryption mechanism of the local database in detail and give a decryption key extraction method based on dynamic binary instrumentation. Finally, through practical tests, our scheme can accurately extract the decryption key and restore the local database, providing a complete solution for the Wangxin application data forensics.

Citation Download Citation

Yu Shi, Lulin Ni II, and Qingbing Ji III "Reverse analysis of Wangxin application based on android platform", Proc. SPIE 12260, International Conference on Computer Application and Information Security (ICCAIS 2021), 122601O (24 May 2022); https://doi.org/10.1117/12.2637666

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KEYWORDS

Databases

Binary data

Analytical research

Data storage

Cell phones

Java

Laser induced breakdown spectroscopy

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