(Wireshark is the most popular network analysis tool in the world. This powerful tool can capture data in the network and provide users with various information about the network and upper layer protocols. Like many other networking tools, Wireshark uses pcapnetworklibrary for packet capture. Can crack the password of QQ, email, MSN, account number, etc. in the LAN!!? Wireshark's original name was ethereal, and its new name came into use in 2006. At that time, the main developer of ethereal decided to leave his former company and continue to develop the software. However, since the right to use the name ethereal has been registered by the original company, the new name Wireshark came into being)