ILLICIT WEBPAGE DETECTION DEVICE, ILLICIT WEBPAGE DETECTION DEVICE CONTROL METHOD, AND CONTROL PROGRAM

摘要

Provided are an illicit webpage detection device, illicit webpage detection device control method, and control program, with which a determination as to whether a webpage is an illicit webpage can be made with high precision. This illicit webpage detection device comprises: a storage part for storing feature vectors based on the states of association of a plurality of character strings in each of a plurality of illicit HTML documents which configure each of a plurality of illicit webpages; an acquisition part for acquiring an HTML document to be inspected which configures a webpage to be inspected; a vector computation part for computing a feature vector of the HTML document under inspection; a similarity computation part for computing similarities between the feature vector of the HTML document under inspection and each of the feature vectors of the plurality of illicit HTML documents; a determination part for, on the basis of each of the computed similarities and a threshold, determining whether the webpage under inspection is an illicit webpage; and a determination result output part for outputting the result of the determination performed by the determination part.