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Method and device for detecting virus

A virus and virus file technology, applied in security devices, electrical components, wireless communications, etc., can solve the problem of software simulation method occupying more system resources, and achieve the effect of enhancing virus identification ability, avoiding simulation and saving system resources

Inactive Publication Date: 2012-05-16
SIEMENS AG
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  • Abstract
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Problems solved by technology

[0005] However, the virus signature code detection method can only detect viruses with known signature codes, the file checksum method needs to obtain normal files in advance, the behavior signature detection method needs to know the characteristic behavior of the virus in advance, and the software simulation method needs to occupy more systems. resource

Method used

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  • Method and device for detecting virus
  • Method and device for detecting virus
  • Method and device for detecting virus

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Embodiment Construction

[0014] It should be appreciated by those skilled in the art that in the following description, numerous specific details are set forth for purposes of explanation and in order to provide a thorough understanding of one or more embodiments. It is evident, however, that these embodiments may be practiced without these specific details.

[0015] Embodiments of the present invention relate to virus detection technology, which first captures the files transmitted in the network, according to the popularity characteristics of the captured files (including but not limited to the number of times the file has been captured from the mobile communication network, from the mobile communication One or any combination of the frequency of capturing the file in the network, the file type, and the content contained in the file) to determine whether the file is a suspected virus file. In this embodiment, judging whether a file is a suspected virus file according to the popularity feature of the...

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Abstract

The invention relates to a method and a device for detecting a virus. The method comprises the following steps: when a file type of a first file captured in a mobile communication network is an appointed file type, confirming whether the first file is a suspected virus file according to an epidemic feature of the first file; if the first file is the suspected virus file, obtaining an action of the first file; and when a malicious action is contained in the action of the first file, confirming the first file as the virus file. By utilizing the method and the device, the suspected virus file or an unknown virus file can be easily detected under the condition of occupying fewer system resources.

Description

technical field [0001] The invention relates to a method and device for detecting viruses. Background technique [0002] With the popularization of portable electronic devices such as mobile phones and personal digital assistants (PDAs) with wireless communication functions, there have been viruses for portable electronic devices similar to computer viruses, which are usually called viruses for portable electronic devices. It is cell phone virus (cell phone virus), for example, Commwarrior virus and "mobile phone skull" Trojan horse virus etc. aimed at the smart phone installed with Symbian S60 3 series version operating system. [0003] The characteristic of these mobile phone viruses is to use the advanced connection performance of the mobile phone to secretly connect to the Internet without the user's knowledge, and send a large number of MMS messages containing mobile phone viruses or MMS messages containing malicious site links of mobile phone viruses to the contacts in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/00H04W24/00H04W12/128
Inventor 郭代飞隋爱芬胡建钧郭涛
Owner SIEMENS AG
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