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Method and device for extracting characteristic information of application program installation package as well as client equipment

A client device and application technology, applied in the security field, can solve problems such as occupying a large memory, affecting the efficiency of feature information, prolonging the time for extracting feature information, etc., to achieve the effects of improving efficiency, shortening time, and reducing memory footprint

Active Publication Date: 2012-11-21
TENCENT TECH (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that the prior art has at least the following problems: in the prior art, when the application installation package needs to be detected, it is necessary to decompress the application installation package to obtain a complete executable file , and then parse the obtained complete executable file in the memory to extract feature information. When the executable file is large and the complete executable file is placed in the memory, it will occupy a large amount of memory, resulting in insufficient memory and prolonging the extraction of feature information. time, which seriously affects the efficiency of obtaining feature information from the application installation package

Method used

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  • Method and device for extracting characteristic information of application program installation package as well as client equipment
  • Method and device for extracting characteristic information of application program installation package as well as client equipment
  • Method and device for extracting characteristic information of application program installation package as well as client equipment

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Experimental program
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Embodiment 1

[0031] figure 1 It is a flowchart of a method for extracting characteristic information of an application installation package provided in Embodiment 1 of the present invention. The execution subject of the method for extracting feature information of an application installation package in this embodiment is an apparatus for extracting feature information of an application installation package, and the apparatus for extracting feature information of an application installation package may specifically be set on a client device. Such as figure 1 As shown, the feature information extraction method of the application installation package in this embodiment may specifically include the following steps:

[0032] 100. Decompress the data not greater than a threshold in the application installation package;

[0033] 101. Analyze the decompressed data obtained by decompression, and obtain key data including characteristic information of the application installation package;

[0034...

Embodiment 2

[0055] figure 2 It is a flowchart of a method for extracting characteristic information of an application installation package provided in Embodiment 2 of the present invention. Such as figure 2 As shown, the feature information extraction method of the application installation package in this embodiment is based on the above embodiments, combined with its application scenarios, and further introduces the technical solution of the present invention in detail. Similarly, the application installation package in this embodiment The execution subject of the feature information extraction method is still a feature information extraction device of an application installation package. Such as figure 2 As shown, the feature information extraction method of the application installation package in this embodiment may specifically include the following steps:

[0056] 200. Determine whether the size of the uncompressed data in the application installation package is greater than or...

Embodiment 3

[0069] image 3 A schematic structural diagram of an apparatus for extracting feature information of an application installation package provided in Embodiment 3 of the present invention. Such as image 3 As shown, the feature information extraction device of the application installation package in this embodiment includes: a decompression module 10 , an acquisition module 11 , a control module 12 and an extraction module 13 .

[0070] Wherein the decompression module 10 is used to decompress the data not greater than a threshold in the application installation package; the acquisition module 11 is connected with the decompression module 10, and the acquisition module 11 is used to decompress the decompression data obtained by the decompression module 10 Analyze and obtain key data including feature information; the control module 12 is connected with the decompression module 10 and the acquisition module 11 respectively, and the control module 12 is used to control the decom...

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Abstract

The invention discloses a method and a device for extracting characteristic information of an application program installation package as well as client equipment and belongs to the technical field of safety. The method comprises the following steps of: uncompressing data not greater than a threshold value in the application program installation package; analyzing uncompressed data obtained through uncompressing, and acquiring key data containing the characteristic information of the application program installation package; repeating the previous two steps until the application program installation package is completely uncompressed, and acquiring all the key data in the application program installation package; and analyzing all the key data and extracting the characteristic information of the application program installation package from the key data. By virtue of the technical scheme adopted by the invention, the occupied space of a memory can be effectively reduced, the time for extracting the characteristic information of the application program installation package can be shortened, and the efficiency of acquiring the characteristic information from the application program installation package can be improved.

Description

technical field [0001] The present invention relates to the field of security technology, in particular to a method, device and client device for extracting characteristic information of an application installation package. Background technique [0002] The application installation package is generally a compressed file, and the compressed file may generally include resource files, configuration files, executable files, and the like. For example, the application installation package of the Android system may be called an apk file, for example, the apk file in the compressed format may include an executable file dex file and other files and the like. [0003] In the prior art, in order to detect whether the installation package of the application program is rogue software or a virus, it is necessary to decompress the installation package of the application program to obtain a complete executable file. Then parse the complete executable file in the memory to extract the chara...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F17/30G06F21/564H04L63/145G06F40/258
Inventor 李伟韩景维
Owner TENCENT TECH (SHENZHEN) CO LTD