Snif

IM-Snif allows a system administrator to view and log all Instant Messages passing through a LAN, including popular networks such as MSN Messenger, AOL Instant Messenger and ICQ Messenger. Internet Relay Chat and plain email are also supported.

LAN and WLAN Sniffer. A program for low-level packets capturing and analyzing in real-time. Allows to capture all network traffic even in switched LAN. Sniffer supports parsing of following protocols: IP, TCP and many others.

IRC, EMail, AIM, SMB, MSN, ICQ sniffer. It intercepts messages and user details, including passwords, across the whole LAN in real time. Supports monitor mode in Wireless networks. Includes ARP-spoofer, allowing to capture behind switch-hubs