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Application anti-repackaging method and system

An application program and repackaging technology, which is applied in the direction of program/content distribution protection, software maintenance/management, etc., can solve the problems of increasing the difficulty of reverse attack, lack of anti-repackaging detection and blocking mechanism, etc., and achieve the effect of reducing reverse tracking

Active Publication Date: 2018-06-05
INST OF SOFTWARE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the detection and blocking mechanism for anti-repackaging is still relatively lacking, and the difficulty of reverse attacks is mainly increased by packing or obfuscation

Method used

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  • Application anti-repackaging method and system
  • Application anti-repackaging method and system
  • Application anti-repackaging method and system

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Embodiment Construction

[0032] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below through specific embodiments and accompanying drawings.

[0033] Taking the Android application as an example, in the specific implementation process, it is necessary to decompress the APK file first to obtain a dex file, and use the baksmali tool to convert the decompressed dex file into a smali file, and then modify the defense code in the smali file. After the defense code is inserted, the smali file is converted into a dex file, and then signed and compressed into an APK file to complete the protection of the entire application. The specific defense code composition and insertion method will be introduced in detail below.

[0034] 1. Composition of defense code

[0035] The defensive code consists of two modules: a repackaging program identification module and a repackaging program exception trigge...

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Abstract

The invention relates to an application anti-repackaging method and system. The method includes first constructing a defense code that identifies a repackaging program and triggers an exception; and then the defense code is embedded in an application to defend against attacks by repackaging. The defense code consists of two parts, including a program identifying the repackaging and an exception triggering mechanism. In the process of actual defense code implantation, the difficulty of reverse tracking by an attacker is increased by randomly placing and confusing in multiple places, and the protection of the Android application is achieved. According to the application anti-repackaging method and system, the attacker's repackaging attacks on Android applications and applications of other operating systems can be effectively prevented.

Description

technical field [0001] The present invention relates to application program protection technology, in particular to an application program anti-repacking method and system, which are suitable for application programs of the Android system and other operating systems. technical background [0002] Application repackaging mainly refers to the technique of illegally implanting malicious codes, advertisement information, malicious links, etc. into applications, and republishing new programs to obtain profits illegally. This repackaging technology is currently widely used, especially with the popularity of mobile phone applications, repackaging technology is developing more rapidly. [0003] Currently, mobile phones are widely used, and users install various application software on their mobile phones for communication, entertainment, payment, etc., which greatly facilitates users' lives. Currently, Android phones account for 86.4%, and as of 2017, Android apps have been downloa...

Claims

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Application Information

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IPC IPC(8): G06F21/14G06F8/70
CPCG06F8/70G06F21/14
Inventor 张颖君
Owner INST OF SOFTWARE - CHINESE ACAD OF SCI
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