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Method and device for unlocking file

A file unlocking and target file technology, applied in the direction of digital data protection, platform integrity maintenance, etc., can solve the problems of lack of ability, weak confrontation ability, single means of unlocking and shredding virus-infected files, and achieve high success rate and enhanced The effect of resistance

Active Publication Date: 2015-06-24
三六零数字安全科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing security software has a single means of unlocking and shredding virus-infected files, and cannot break through the layers of protection set up for virus-infected files, and the ability to resist is not strong
Traditional security software vendors have only solved part of the "undelete" problem, and often show a certain lack of ability in the attack and defense of the operating system kernel state, and the ability to resist driver-level malicious programs (Rootkit) is relatively weak

Method used

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  • Method and device for unlocking file
  • Method and device for unlocking file
  • Method and device for unlocking file

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Embodiment Construction

[0053] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0054]One of the core ideas of the embodiments of the present invention is that if there is no operation authority (including file authority and owner restriction) when operating on the target file, then call a custom application program interface for target authority setting to add After operating the permissions, perform the operations of unlocking and shredding the target files.

[0055] refer to figure 1 , which shows a flow chart of the steps of Embodiment 1 of a file unlocking method of the present invention, which may specifically include the following steps:

[0056] Step 101, obtaining the operation authority information of the target file;

[0057] "Privilege restriction" is a fine-grained access control mechanism when...

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Abstract

The invention provides a method and device for unlocking a file. The method comprises the steps that operation authorization information of the target file is obtained; if the target file is free of operation authorization, a user-defined application program interface for setting target authorization is called to add operation authorization to the target file. A provided file unlocking and shredding mechanism is safe, reliable and high in success rate, a file self-protection behavior of a rogue program can be recognized in a complex client side environment and can be resisted, and the resisting capacity to the attack and defense of a driving-level rogue program is enhanced.

Description

[0001] The patent application of the present invention is a divisional application of the Chinese invention patent application with the filing date of June 27, 2011, the application number of 201110175557.5, and the title of "A Method and Device for Unlocking Files". technical field [0002] The invention relates to the technical field of computer security, in particular to a file unlocking method and a file unlocking device. Background technique [0003] A computer virus refers to a set of computer instructions or program codes that are inserted into a computer program by the compiler to destroy computer functions or data, affect the use of the computer, and are capable of self-replication. Once a computer is infected with a virus, the computer usually shows that its files are increased , delete, change the name or attribute, and move to other directories. These operations of the virus on the computer files may cause a series of problems such as the inability to run normal p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/56G06F21/60
Inventor 王宇潘剑锋郑文彬
Owner 三六零数字安全科技集团有限公司
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