Smart Card Based Protection for Dalvik Bytecode — Dynamically Loadable Component of an Android APK

Shoaib, Muhammad; Yasin, Noor; Abbassi, Abdul G.

doi:10.7763/ijcte.2016.v8.1036

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…SMOG will also modify the code of DVM interpreter. Noor et al [26] present a protection scheme based on obfuscation, code modification and cryptographic protection that can effectively counter reverse engineering.…”

Section: Related Workmentioning

confidence: 99%

DexPro: A Bytecode Level Code Protection System for Android Applications

Tang

Song

et al. 2017

Cyberspace Safety and Security

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Unauthorized code modification through reverse engineering is a major concern for Android application developers. Code reverse engineering is often used by adversaries to remove the copyright protection or advertisements from the app, or to inject malicious code into the program. By making the program difficult to analyze, code obfuscation is a potential solution to the problem. However, there is currently little work on applying code obfuscation to compiled Android bytecode. This paper presents DEXPRO, a novel bytecode level code obfuscation system for Android applications. Unlike prior approaches, our method performs on the Android Dex bytecode and does not require access to high-level program source or modification of the compiler or the VM. Our approach leverages the fact all except floating operands in Dex are stored in a 32-bit register to pack two 32-bit operands into a 64-bit operand. In this way, any attempt to decompile the bytecode will result in incorrect information. Meanwhile, our approach obfuscates the program control flow by inserting opaque predicates before the return instruction of a function call, which makes it harder for the attacker to trace calls to protected functions. Experimental results show that our approach can deter sophisticate reverse engineering and code analysis tools, and the overhead of runtime and memory footprint is comparable to existing code obfuscation methods.

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Section: Related Workmentioning

confidence: 99%

DexPro: A Bytecode Level Code Protection System for Android Applications

Tang

Song

et al. 2017

Cyberspace Safety and Security

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Analysis for the spoofing tampering of WeChat records on android smartphones

TIAN,

GUO,

et al. 2024

Fifteenth International Conference on Signal Processing Systems (ICSPS 2023)

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The rapid growth in usage and Instant Messenger Applications (IMAs) has made them a potential target by cyber criminals to conduct malicious activities such as identity theft, illegal trading, etc. For example, WeChat is extending its services to mobile platforms, making it an important source of evidence in cyber investigation cases. Therefore, understanding the types of potential evidence of users activities available on mobile devices is crucial for forensic investigations and research. In this article, we examined WeChat, the most popular application on the Android platform. We created various artifacts (e.g., texts messages, images, audio, and document) that are of forensic interest to perform targeted spoofing tampering with WeChat data. This helps in analyzing the authenticity of WeChat data during forensics, thereby proving the innocence of people or the existence of certain criminal activities.

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Smart Card Based Protection for Dalvik Bytecode — Dynamically Loadable Component of an Android APK

Cited by 2 publications

References 4 publications

DexPro: A Bytecode Level Code Protection System for Android Applications

DexPro: A Bytecode Level Code Protection System for Android Applications

Analysis for the spoofing tampering of WeChat records on android smartphones

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