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Method and apparatus for testing document of portable document format

A document format and document technology, applied in the field of information security, can solve the problems of poor PDF document security, PDF document hazard detection, etc., and achieve the effect of improving security

Inactive Publication Date: 2015-11-25
KINGSOFT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, none of the existing detection methods can effectively detect the hazards of PDF documents, resulting in poor security of PDF documents

Method used

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  • Method and apparatus for testing document of portable document format
  • Method and apparatus for testing document of portable document format
  • Method and apparatus for testing document of portable document format

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Embodiment Construction

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary, and are only used to explain the present invention, but should not be understood as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents falling within the scope of the spirit and connotation of the appended claims.

[0020] figure 1 Is a flowchart of an embodiment of the PDF document detection method of the present invention, such as figure 1 As shown, the detection method of the PDF document may include:

[0021] Step 101: Extract feature values ​​from the file structure of the training PDF document.

[0022] Wherein, the aforementioned train...

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Abstract

The invention provides a method and an apparatus for testing a document of a portable document format, the method for testing the document of the portable document format (PDF) comprises: extracting a feature value from a document structure of a training PDF document that comprises a malicious PDF document containing attack code; using the feature value to learn to generate a test model through the machine learning algorithm; and predicting the PDF document to be tested to be a malicious PDF document or not through the test model. According to the invention, on the premise of static analysis, attack prediction to a document is realized, and further the safety of the PDF document can be improved.

Description

Technical field [0001] The present invention relates to the technical field of information security, in particular to a method and device for detecting a portable document format (Portable Document Format; hereinafter referred to as: PDF) document. Background technique [0002] With the rapid development of the Internet and the increasing popularity of office automation, PDF documents have become an open standard for global electronic document distribution. Due to the high practicability and universal adaptability of PDF documents, it has become an effective carrier for targeted phishing attacks. Malicious code is severely destructive to computers, so the detection of PDF documents containing malicious code has become an important goal in the field of computer security. [0003] However, none of the existing detection methods can effectively detect the harmfulness of PDF documents, resulting in poor security of PDF documents. Summary of the invention [0004] The purpose of the pre...

Claims

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Application Information

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IPC IPC(8): G06F21/56
CPCG06F21/562
Inventor 苟孟洛
Owner KINGSOFT
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