Impacket is an open-source collection of Python classes designed for working with network protocols. It allows users to craft and decode network packets programmatically, making it a valuable tool for penetration testers and red teamers. Impacket supports a wide range of protocols, including SMB, RDP, and LDAP, enabling tasks such as credential dumping, relay attacks, and lateral movement within networks. Its flexibility and rich feature set make it a popular choice for both security professionals and attackers seeking to automate network interactions or exploit protocol weaknesses. However, due to its capabilities, it is often flagged by security solutions.