Method and device for bundling files in host file

Abstract

The invention discloses a method for binding a file in a host file. The host file comprises a plurality of nodes which are used for storing data and arranged in a certain order. The method comprises the following steps of: converting the file to be bound to a binding file corresponding to the host file in format and generating configuration information of the binding file; storing the binding file and the configuration information in the last node of the host file; and altering structure information of the last node of the host file and structure information of the host file according to the binding file and the configuration information. According to the method and corresponding device for binding the file in the host file provided in the invention, the file with any length can be bound in the last node of the host file, so that the problems that scattered small files can be bound only and excessively concentrated information at the head of the host file can result in report errors in the prior art are solved, and the beneficial effects that great files with any length can be bound and the report errors are not easy to occur are achieved.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for bundling files in a host file. Background technique [0002] File bundling can also be called file hiding. The specific method is to bundle other files in one file to achieve the effect of reducing the number of files or hiding some files. Wherein, the file bundled with other files is called a host file, and the file bundled into the host file is called a bundled file. [0003] Because there is a lot of redundant space in the PE file structure itself, PE files are often used as host files, in which other files are bundled. The usually relatively large free space in the PE file is: (1) the redundant space generated by data alignment between adjacent section tables; (2) the redundancy generated by data alignment after the last section table of the PE file space. (3) The DOSStub in the PE structure is reserved for DOS programs, and it will only play a real role w...

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Problems solved by technology

[0006] However, when the above method is used, since the redundant space capacity in the PE file structure is small and discontinuous, it is more suitable for bundling scattered small files, and usually cannot be bundled for larger files.

Moreover, since the redundant space in the PE file structure is basically concentrated in the header of the PE file, all the bundled files are concentrated in the header of the PE file, and the amount of information is too concentrated, so it is easy to be detected by the format checking tool Reporting errors for exceptions, resulting in false positives

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