Bundle method and device for file to host file

Abstract

The invention discloses a bundle method and a device for a file to a host file. The host file comprises a plurality of bytes which are arrayed in a certain order and used for storing data. The device comprises a converting unit, a bundle unit and a modifying unit. According to the bundle method and the corresponding device for the file to the host file, a last byte of the host file is bundled with a file with an arbitrary length, so that the problems in the prior art that only small files can be bundled, and errors happen caused by the information on the head portion of the host file is too concentrated, large files which can be bundled with arbitrary lengths can be obtained, and the errors can not occur easily.

Description

Technical field

[0001] The present invention relates to the field of communications, and in particular to a method and device for binding files to host files. Background technique

[0002] File bundling can also be called file hiding. The specific method is to bundle other files in a file to reduce the number of files or hide some files. Among them, the file bundled with other files is called the host file, and the file bundled into the host file is called the bundled file.

[0003] Because the PE file structure itself has a lot of redundant space, the PE file is often used as a host file, in which other files are bundled. PE files usually have relatively large free space: (1) the redundant space between adjacent section tables due to data alignment; (2) the redundancy due to data alignment after the last section table of the PE file space. (3) The DOS Stub in the PE structure is reserved for DOS programs. It will only play a real role when the file is executed under DOS. There...

Examples

Embodiment Construction

[0024] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail 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 can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0025] figure 2 It shows a method for binding a file to a host file provided by an embodiment of the present invention. Specifically, the host file may be a PE file or other files with a similar structure to the PE file. In the following description, the host file is a PE file as an example.

[0026] In order to facilitate understanding, first briefly introduce the structure of the PE file. PE files mainly ...

Technical field

[0001] The present invention relates to the field of communications, and in particular to a method and device for binding files to host files. Background technique

[0002] File bundling can also be called file hiding. The specific method is to bundle other files in a file to reduce the number of files or hide some files. Among them, the file bundled with other files is called the host file, and the file bundled into the host file is called the bundled file.

[0003] Because the PE file structure itself has a lot of redundant space, the PE file is often used as a host file, in which other files are bundled. PE files usually have relatively large free space: (1) the redundant space between adjacent section tables due to data alignment; (2) the redundancy due to data alignment after the last section table of the PE file space. (3) The DOS Stub in the PE structure is reserved for DOS programs. It will only play a real role when the file is executed under DOS. There...

Examples

Embodiment Construction

[0024] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail 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 can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0025] figure 2 It shows a method for binding a file to a host file provided by an embodiment of the present invention. Specifically, the host file may be a PE file or other files with a similar structure to the PE file. In the following description, the host file is a PE file as an example.

[0026] In order to facilitate understanding, first briefly introduce the structure of the PE file. PE files mainly ...

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