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Method and device for detecting malicious code in smart terminal

A smart terminal, malicious code technology, applied in the direction of platform integrity maintenance, can solve personal data security and other issues, and achieve the effect of protecting security

Active Publication Date: 2017-04-26
BEIJING QIHOO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, an increasing variety of malicious code attacks on mobile phones and increasingly serious personal data security issues have followed, and more and more mobile phone viruses have caused smartphone users to suffer.

Method used

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  • Method and device for detecting malicious code in smart terminal
  • Method and device for detecting malicious code in smart terminal
  • Method and device for detecting malicious code in smart terminal

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Embodiment Construction

[0034] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0035] Taking the Android (Android) operating system as an example, it includes an application program layer (app layer) and a system framework layer (framework layer). As for other layers that may be included in terms of functional division, the present invention will not discuss it. Among them, usually the app layer can be understood as the upper layer, which is responsible for the interface that interacts with the user, such as a...

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Abstract

Disclosed are a method and device for detecting a malicious code in a smart terminal. The method comprises: acquiring a virtual machine executable file of an application from an application layer of a smart terminal operating system; decompiling the virtual machine executable file to acquire a decompiled function information structure; parsing the decompiled function information structure, extracting a sequence of function calls in the decompiled function information structure; and, utilizing a preset malicious code signature library to match the sequence of function calls, if matching is successful, then determining that the virtual machine executable file of the application contains a malicious code. Application of the solution of the present invention, by means of a virtual machine executable file of an application, allows for analysis and determination of whether or not the application contains a malicious code, and allows for detection and removal of a tampered application or malicious software, thus safeguarding the security of a smart terminal.

Description

technical field [0001] The invention relates to the technical field of intelligent terminal security, in particular to a method and device for detecting malicious codes in an intelligent terminal. Background technique [0002] With the development of science and technology, smart terminals have more and more functions. For example, people's mobile phones have shifted from traditional GSM and TDMA digital mobile phones to smart phones that can handle multimedia resources and provide various information services such as web browsing, conference calls, and e-commerce. However, more and more types of malicious code attacks on mobile phones and increasingly severe personal data security issues have followed, and more and more mobile phone viruses have caused smartphone users to suffer. Contents of the invention [0003] In view of the above problems, the present invention is proposed to provide a method and device for detecting malicious codes in smart terminals that overcome ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/56
CPCG06F21/56
Inventor 杨康陈卓唐海
Owner BEIJING QIHOO TECH CO LTD