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Method of implanting dynamic stain analysis module in Android

A dynamic taint and analysis module technology, applied in the direction of platform integrity maintenance, etc., can solve problems such as the difficulty of applying dynamic taint analysis technology, and achieve the effect of reducing damage and loss

Active Publication Date: 2013-06-26
RENMIN UNIVERSITY OF CHINA
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AI Technical Summary

Problems solved by technology

These methods need to modify the Android system source code or change the Android system architecture, such as the need to configure a cumbersome operating environment, compile the source code, flash the machine, and ROOT the target terminal device. These operations are too complicated and professional for ordinary users, resulting in dynamic stains Analysis technology is difficult to apply to ordinary users' Android system terminal devices

Method used

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  • Method of implanting dynamic stain analysis module in Android
  • Method of implanting dynamic stain analysis module in Android
  • Method of implanting dynamic stain analysis module in Android

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] The basic idea of ​​the present invention is to statically insert the system class library and the application program of the Android system, and directly insert the dynamic taint analysis module with the taint tracking function into the system class library file and the application program file, and the dynamic taint analysis module will be in the The instrumented application program and the instrumented system class library file run synchronously during the running process to realize dynamic taint tracking and analysis.

[0019] Such as figure 1 Shown, the present invention comprises the following steps:

[0020] 1) Perform static instrumentation on the system class library, insert the dynamic taint analysis module directly into the system class library file, and generate the system class library after instrumentation;

[0021] 2) Perform s...

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Abstract

The invention relates to a method of implanting a dynamic stain analysis module in Android. According to the method of implanting the dynamic stain analysis module in the Android, static instrumentation is performed on system class libraries and application programs of an Android system, an execution environment is reconfigured through the method of redirecting a virtual machine startup function in a loading process of the application programs after the instrumentation, the application programs after the instrumentation are enabled to be capable of allowing reference to the system class libraries after the instrumentation, the dynamic stain analysis module synchronously operates in the operating process of the application programs after the instrumentation, and dynamic stain tracing analysis is implemented. The source code and the system architecture of the Android system do not need to be modified, and reset and ROOT target terminal equipment are not needed, the dynamic stain analysis module with the stain tracing analysis function can be implanted in a platform of the Android system, and sensitive information operations are monitored and analyzed.

Description

technical field [0001] The invention relates to a dynamic stain analysis method, in particular to a method capable of directly implanting a dynamic stain analysis module in Android. Background technique [0002] Dynamic taint analysis technology is an effective and practical information flow analysis technology. Dynamic taint analysis technology can be used to more accurately monitor the information flow of the application during operation, for example, to track whether sensitive data is propagated from a preset taint source to a preset security-sensitive operation point. Dynamic taint analysis technology usually consists of three key technical links: taint introduction, taint propagation and taint inspection. Taint introduction means that when reading data from a preset taint source, it is necessary to set a corresponding taint value for the read data. Taint propagation refers to the propagation of taint values ​​according to the set strategy during the process of process...

Claims

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Application Information

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IPC IPC(8): G06F21/50
Inventor 梁彬游伟王鹏石文昌
Owner RENMIN UNIVERSITY OF CHINA
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