Mobile phone application accessory automatic association method, terminal equipment and storage medium

A mobile phone application and automatic association technology, applied in branch equipment, special data processing applications, electrical components, etc., can solve the problems of not knowing the data source of the message digest, spending a lot of time reversely analyzing the code, etc., to reduce reverse analysis and improve. The effect of work efficiency

Pending Publication Date: 2022-05-06
XIAMEN MEIYA PICO INFORMATION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the message digest algorithm for calculating the attachment file name can be determined according to the length of the file name, the data source for calculating the message digest is unknown. Forensic staff need to reverse analyze the code to obtain the corresponding relationship, which not only requires forensic staff to have professional Reversing knowledge, and it takes a lot of time to reverse analyze the code

Method used

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  • Mobile phone application accessory automatic association method, terminal equipment and storage medium
  • Mobile phone application accessory automatic association method, terminal equipment and storage medium
  • Mobile phone application accessory automatic association method, terminal equipment and storage medium

Examples

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Embodiment 1

[0026] At present, the two mainstream operating systems on the mobile terminal are Android and IOS, and the algorithm for calculating the message digest at the bottom layer is fixed. For example, the Java class name "java. The following common message digest algorithms are encapsulated in the "CommonCrypto / CommonDigest.h" file. We only need to intercept and hook these low-level functions to obtain all the data sources for calculating message digests, and then determine the corresponding relationship of attachments through analysis.

[0027] Based on the above principles, an embodiment of the present invention provides a method for automatically associating mobile phone application accessories, which is used to find the association relationship between mobile phone application accessories and local data sources, and the Android platform is used as an example for illustration. Such as figure 1 As shown, the method includes the following steps:

[0028] S1: Write a JS script bas...

Embodiment 2

[0042] The present invention also provides a terminal device for automatic association of mobile phone application accessories, including a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the computer program, the computer program is implemented. Steps in the above method embodiment of Embodiment 1 of the present invention.

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PUM

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Abstract

The invention relates to a mobile phone application attachment automatic association method, terminal equipment and a storage medium. The method comprises the following steps: compiling a JS script based on a Hook bottom layer and used for calculating a message abstract; writing a Python master control program end, newly creating a Python program, importing the Python program into an Frida module, writing a program for mounting a mobile phone application, and loading a JS script; running the Frida server and a to-be-analyzed mobile phone application program, and starting a Python program to receive a data source object sent by Send and a corresponding message digest algorithm; the Python program calculates a message digest value and stores the message digest value in a list file; and extracting a file name of the attachment to be analyzed, searching a message digest value which is the same as the file name from the list file by taking the file name as a search condition, and taking a data source object corresponding to the searched message digest value as an associated data source of the attachment to be analyzed. According to the method, reverse analysis of evidence obtaining workers can be effectively reduced.

Description

technical field [0001] The invention relates to the field of mobile phone electronic data forensics, in particular to a method for automatically associating mobile phone application accessories, a terminal device and a storage medium. Background technique [0002] In recent years, with the development of smart phones, more and more people use smart phones. Smart phones have become an indispensable tool for people's life and work. More and more applications have also been born. While providing convenience to work, some people also use these software to carry out illegal activities, such as telecom fraud. In order to combat these illegal activities and maintain social stability, forensics staff are required to support the analysis of different applications as much as possible, and analyze attachments Association method. [0003] When users use mobile applications to browse websites, shop, and chat, the data of user operations will be stored locally. For example, if a user sen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/72406H04M1/72403H04W12/03G06F16/2455
CPCH04M1/72406H04M1/72403H04W12/03G06F16/24552
Inventor 杜新胜周开军李哲张磊
Owner XIAMEN MEIYA PICO INFORMATION
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