Patent application number | Description | Published |
20120159621 | DETECTION SYSTEM AND METHOD OF SUSPICIOUS MALICIOUS WEBSITE USING ANALYSIS OF JAVASCRIPT OBFUSCATION STRENGTH - The present invention provides a detection system of a suspicious malicious website using the analysis of a JavaScript obfuscation strength, which includes: an entropy measuring block of measuring an entropy of an obfuscated JavaScript present in the website, a special character entropy, and a variable/function name entropy; a frequency measuring block of measuring a specific function frequency, an encoding mark frequency and a % symbol frequency of the JavaScript; a density measuring block of measuring the maximum length of a single character string of the JavaScript; and a malicious website confirming block of determining whether the relevant website is malicious by comparing an obfuscation strength value, measured by the entropy measuring block, the frequency measuring block and the density measuring block, with a threshold value. | 06-21-2012 |
20120159625 | MALICIOUS CODE DETECTION AND CLASSIFICATION SYSTEM USING STRING COMPARISON AND METHOD THEREOF - The present invention provides a malicious code detection and classification system using a string comparison technique, including a string extracting unit configured to extract all expressed strings existing in a binary file from the malicious code binary file; a string refining unit configured to refine elements obstructing malicious code detection and classification in the strings extracted from the string extracting unit; and a string comparison unit configured to determine how similar one binary is to another binary by comparing strings refined from the string refining unit. | 06-21-2012 |
20130151526 | SNS TRAP COLLECTION SYSTEM AND URL COLLECTION METHOD BY THE SAME - A social networking service (SNS) trap collection system capable of accurately and effectively extracting and collecting information including a malicious code among information exchanged in an SNS, and a uniform resource location (URL) collection method by the same. URL information for a malicious code included in post (a bulletin script, a message, a note, or the like) exchanged is effectively collected by using an account IDD and a password of account information and utilized for detecting a malicious code in the SNS, thus significantly reducing damage to users due to infection of a malicious code. | 06-13-2013 |
20130160127 | SYSTEM AND METHOD FOR DETECTING MALICIOUS CODE OF PDF DOCUMENT TYPE - Disclosed herein is a PDF document type malicious code detection system for efficiently detecting a malicious code embedded in a document type and a method thereof. The present invention may perform a dynamic and static analysis on JavaScript within a PDF document, and execute the PDF document to perform a PDF dynamic analysis, thereby achieving an effect of efficiently extracting a malicious code embedded in the PDF document. | 06-20-2013 |
20130179421 | System and Method for Collecting URL Information Using Retrieval Service of Social Network Service - A system and method for collecting a URL using a retrieval service of an SNS capable of accurately and effectively extracting and collecting information including a malicious code among information exchanged in an SNS are provided. URL information included in post (a bulletin script, a message, a note, or the like) exchanged in an SNS based on real-time search word information is extracted and collected to be utilized for collecting a malicious code in the SNS, whereby generation of a malicious code in the SNS can be prevented in advance, and thus, damage to users due to infection of a malicious code can be significantly reduced. In addition, the URL information can be effectively collected through crawling. | 07-11-2013 |
20130185793 | Apparatus and Method for Tracking Network Path - An apparatus and method for effectively tracking a network path by using packet information generated when visiting a Web page are provided. | 07-18-2013 |
20140130167 | SYSTEM AND METHOD FOR PERIODICALLY INSPECTING MALICIOUS CODE DISTRIBUTION AND LANDING SITES - A system and method for periodically inspecting malicious code distribution and landing sites, which receives a malicious-suspected URL from a management server; collects a file which is created when the malicious-suspected URL is connected and self-inspecting existence of the malicious code in the collected file using a commercial vaccine; traces, if a malicious code is detected in the collected file, a final distribution site distributing the detected malicious code; confirms information on a landing site connected to the final distribution site and registering the final distribution site and the landing site in a landing/distribution site database; confirms whether or not the final distribution site and the landing site registered in the landing/distribution site database are connectible; and updates the landing/distribution site database according to whether or not the final distribution site and the landing site are connectible. | 05-08-2014 |
20140137250 | SYSTEM AND METHOD FOR DETECTING FINAL DISTRIBUTION SITE AND LANDING SITE OF MALICIOUS CODE - A system and method for detecting final distribution and landing sites of a malicious code. The method extracts and collecting new article URLs and advertisement banner URLs by inspecting a main page of a press company; filters malicious-suspected URLs suspicious of hiding the malicious code from the new article URLs and the advertisement banner URLs; collects files created when the malicious-suspected URLs are visited, through visit inspection; self-inspects the created files collected through the created file collection using a commercial vaccine; and traces, if the malicious code is detected in the created file, the final distribution and landing sites distributing the detected malicious code. | 05-15-2014 |
20140137251 | SYSTEM FOR IDENTIFYING MALICIOUS CODE OF HIGH RISK - Disclosed is a system for identifying malicious codes of high risk. The system includes a statistical data creation module for creating statistical data by collecting and processing malicious codes by channel, ranking, period, type, re-infection and vaccine diagnosis; a trend data creation module for creating trend data by processing the collected malicious codes by channel, field and type; a malicious code filtering module for extracting the malicious code of high risk from the collected malicious codes based on priority information including a URL type, the number of distribution sites, the number of landing sites, a vaccine diagnosis rate and the number of reports; and a database for processing and storing the statistical data, the trend data and the malicious codes of high risk in a form of a graph, a pie chart and a table. | 05-15-2014 |
20140143866 | METHOD OF INSPECTING MASS WEBSITES AT HIGH SPEED - Disclosed is a method of inspecting mass websites at a high speed, which visits and inspects the mass websites at a high speed and, at the same time, correctly detects unknown attacks, detection avoidance attacks and the like and extracts URLs related to vulnerability attacks. The method of inspecting mass websites at a high speed includes the steps of: simultaneously visiting, if a list of inspection target websites is received, a plurality of inspection target websites using multiple browsers; inspecting whether or not malicious code infection is attempted at the plurality of inspection target websites visited through the multiple browsers; extracting a malicious website where the attempt of malicious code infection is generated among the plurality of inspection target websites; and visiting the malicious website and tracing a malicious URL distributing a malicious code. | 05-22-2014 |
20140143871 | METHOD OF INSPECTING MASS WEBSITES BY VISITING - Disclosed is a method of inspecting mass websites by visiting, which inspects the mass websites by visiting at a high speed using multiple browsers and multiple frames. The method of inspecting mass websites includes the steps of: simultaneously visiting, if a list of inspection target websites is received, a plurality of inspection target websites using multiple browsers; inspecting whether or not a malicious code infection attack is generated at the plurality of inspection target websites visited through the multiple browsers; and tracing, if the malicious code infection attack is detected among the plurality of inspection target websites, a malicious website through revisit inspection using a tree search algorithm. | 05-22-2014 |
20140143872 | METHOD OF DETERMINING WHETHER OR NOT WEBSITE IS MALICIOUS AT HIGH SPEED - Disclosed is a method of determining whether or not a website is malicious at a high speed, which determines unknown attacks, detection avoidance attacks and the like at a high speed when the website is inspected by visiting. The method of determining whether or not a website is malicious at a high speed includes the steps of: simultaneously visiting, if a list of inspection target websites is received, a plurality of inspection target websites using multiple browsers; and grasping whether or not malicious code infection is attempted through a correlation analysis of behavior information created when the plurality of inspection target websites is visited through the multiple browsers. | 05-22-2014 |