Network Protocol Analyzer
Network Analyzer is a free software for Windows based on the Network Protocol Analyzer developed by Peter Norbot and Jim Melville. The program can be used to view and analyze network connections in the infected system. It can also display the identity of hosts on a network protocol analyze. It is primarily intended as a net monitor and engine monitoring tool, but it can also be used to perform security functions such as identifying open TCP ports and interpreting IP header information.