Zero-day network interruption assaults comprise a regular online protection danger, as they look to take advantage of the weaknesses of an organization framework. Zero-day attacks have always been a major contributor in data leaks which has led to loss of money, time, and resources. Our solution to detect and prevent such attacks is a desktop application that monitors your network traffic in real time and looks for any anomalies or malicious activity that may be happening and works to minimize the damage caused by prevention. Our Zero-day attack detection and prevention system is a software designed to protect the user’s machine from malicious connections and stop it if any are attempted. Our software utilizes a network flow collection tool called CIC Flowmeter to collect network flows from the user in real time. These flows are analyzed using a two layer approach. Protection is employed by blocking network port access for specific IP Addresses that have been flagged as malicious.