MONITORING DEVICE, MONITORING METHOD, AND MONITORING PROGRAM

摘要

A monitoring device (30) inspects a redirect code inserted into content (11) of a compromised website (10), and, in accordance with a result thereof, when information of a new malicious website is described in the redirect code, the monitoring device (30) acquires information of the malicious website and registers the information on a blacklist (40). In addition, the monitoring device (30) unregisters information of the malicious website that is no longer described in the redirect code in the content (11) from the blacklist (40).