Ettercap
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This tool may be used for malicious purpose due to its penetration testing or hacking capabilities, please use with discretion.
Description
Ettercap is a suite for adversary-in-the-middle attacks on LAN that includes sniffing of live connections, content filtering on the fly, and many other features. It supports active and passive dissection of many protocols (including ciphered protocols) and includes many features for network and host analysis.