Code injection based privacy information protection method

Abstract

The present invention provides a code injection based privacy information protection method. The method comprises the following steps: (1) obtaining the highest root privilege of an Android system; (2) replacing a zygote program of the Android system by means of a file manager, and adding a new process by calling a fork() function by a system; (3) un-rooting the system; (4) detecting a specific request proposed by an application; (5) intercepting the request in the manner of reflection, and adding an Xposed frame based hook function for a specific permission access when a program that needs to be spoofed in the request is started; (6) when an application runs, processing read parameter data before access of a privacy function; and (7) modifying and spoofing an acquired reality return value after the function ends, so as to achieve the purpose of privacy information protection. The method provided by the present invention is excellent in applicability, convenient for operation and excellent in reliability.

Description

technical field

[0001] The invention relates to mobile terminal-oriented applications and rights management issues, in particular to a method for protecting private information based on code injection, which belongs to the field of privacy protection. Background technique

[0002] 2014 is the 20th anniversary of China's official access to the Internet. The rapid development of mobile communication technology has led to an exponential increase in the number of mobile devices. In 2014, there were about 500 million mobile Internet users. The exponential growth of mobile phone viruses is undoubtedly the breaking point of mobile security, and mobile payment security has become a new challenge for the mobile Internet. New mobile applications and new functions, such as online banking, games, mobile phone charging, etc., bring convenience to users, but also bring security risks such as privacy leakage. Compared with the closed system of iOS, the flexible and open Android system is...

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