Win Firewall Log Analyser is a handy application designed to enable you to read and analyse your native Windows Firewall Log.
It will quickly show you what protocols, ports and source hosts are the most active on your network in terms of dropped packets. Using the WinFirewallLogAnalyser can help you to rapidly track down the source of malware or noisy network applications, and help you optimise your home or corporate network.
The tool comes with its own database of network protocols and ports, and can offer suggestions on what to do when particular packets are discovered.