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File penetration writing method based on EWF (enhanced write filter) memory protection system

A system and file protection technology, applied in the direction of platform integrity maintenance, input/output to record carrier, etc., can solve the problems of files and folders that cannot be written to disk, file size cannot be changed, and files and folders that cannot be changed in size can be penetrated. , to achieve the effect of improving safety, improving work efficiency and avoiding workload

Active Publication Date: 2013-12-25
FUJIAN CENTM INFORMATION
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  • Abstract
  • Description
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Problems solved by technology

For submitting a single file: due to too many restrictions on submitting a single file, such as: the file needs to be created before it is unprotected, and the size of the file cannot be changed. Therefore, it is impossible to penetrate files and folders whose size will change, that is, unable to write to disk
Therefore, the existing EWF-based memory protection system cannot meet the requirement of penetrating specified files or folders

Method used

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  • File penetration writing method based on EWF (enhanced write filter) memory protection system
  • File penetration writing method based on EWF (enhanced write filter) memory protection system

Examples

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Embodiment Construction

[0018] see figure 1 , based on the file penetrating writing method under the EWF memory protection system, the EWF memory protection system means that the system has used the EWF software provided by Microsoft Corporation, through the EWF software, you can set the disk partitions that need to be protected (system , the disk is generally divided into multiple disk partitions, such as C disk, D disk, E disk, etc.), and the function of submitting a single file can be used in the EWF software itself.

[0019] In the system that has used EWF memory protection, the file penetrating writing method first performs a pre-configuration operation, specifically: firstly perform a penetrating policy configuration and form a policy file, and then perform an initialization operation, and the penetrating policy configuration Including: configuring the files or folders that need to be penetrated, configuring the identification of the virtual disk (the identification of the virtual disk is the d...

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Abstract

The invention provides a file penetration writing method based on a EWF (enhanced write filter) memory protection system. The method includes firstly, executing pre-configuration, creating at least one large file in a protected partition, and virtualizing the large files into a virtual disk; secondly, performing file redirection through a main drive, and redirecting read-write operation of files needing penetration into the virtual disk to enable operations on the files needing penetration to be written into the large file; thirdly, using a single-file submitting function of a EWF, and submitting the large files so as to realize penetration writing of the files. By the method, penetration of a specified file or folder can be realized transparently without introducing in dirty data, and safety of a terminal is improved. For example, the dirty data cannot be introduced in while antivirus software virus database updating and software profile storage, so that safety of the terminal is improved. Meanwhile, workload caused by the fact that an administrator submits manually can be avoided, and working efficiency is improved.

Description

【Technical field】 [0001] The invention relates to a file penetrating writing method based on an EWF memory protection system. 【Background technique】 [0002] EWF software (English full name: Enhanced Write Filter, Chinese name: Enhanced Write Filter) is a functional component provided by Microsoft's embedded operating system to protect data on the disk from being tampered with. At the same time, in order to meet the user's demand for data writing, it also provides the function of submitting partitions and submitting a single file (the so-called submission refers to writing the content on the overlay layer to the disk). For a commit partition: Because committing a partition will write all the changes on the partition to the disk, dirty data or even viruses may be introduced. For submitting a single file: due to too many restrictions on submitting a single file, such as: the file needs to be created before it is unprotected, and the size of the file cannot be changed. Therefo...

Claims

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Application Information

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IPC IPC(8): G06F3/06G06F21/53
Inventor 张辉
Owner FUJIAN CENTM INFORMATION
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