Method, device and system for preventing malicious deduction

Abstract

The invention discloses a prevention method, a prevention device and a prevention system for malicious deduction, and relates to the field of mobile application security. The present invention judges whether the subscription service is in the gray list for unknown subscription services that are neither in the white list nor in the black list. If the subscription service is not in the gray list, the subscription service is added to the gray list. For the subscription service in the gray list, Execute the auxiliary means of dialing out the user's mobile phone to determine whether the ordering business is operated by the user himself, so as to remind the user of the risk of deduction and prevent malicious deduction. This heuristic detection technology for unknown malicious code can effectively solve unknown malicious codes. The deduction behavior of the code avoids tariff disputes between users and operators due to malicious software subscriptions, and the detection process is carried out outside the mobile phone, which does not occupy mobile phone system resources and can reduce the requirements for mobile phone performance.

Description

technical field [0001] The invention relates to the field of mobile application security, in particular to a method, device and system for preventing malicious deduction. Background technique [0002] According to relevant statistics, as of March 10, 2012, more than 210,000 mobile phones in my country have been infected with malicious codes that secretly deduct user phone charges. Malicious codes send order text messages in the background of mobile terminals for malicious business ordering, and block the order confirmation text messages sent by operators, causing users to be deducted tariffs without knowing it, resulting in losses for customers. [0003] The current method for preventing malicious subscription services is generally to install security protection software or special antivirus software in the mobile phone. Security protection software or antivirus software usually has a database of malicious code signatures, and compares the code signatures of the application...

AI Technical Summary

Problems solved by technology

[0004] Security protection software or anti-virus software can only prevent malicious codes in the known code signature database, but cannot protect against fee deductions of unknown malicious codes;

[0005] Installing and using security protection software or anti-virus software needs to occupy and consume a certain amount of mobile phone system resources, which requires high mobile phone performance

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