IM Snif Description:

IRC, EMail, SMB, MSN, AIM, ICQ Sniffer. A program that intercepts messages and user details, including passwords, across the whole LAN in real time. It is possible to receive and view all these messages to and from all LAN users in the same time they will receive or send it. All intercepted messages are also stored in files, which can be later processed and analyzed. Includes ARP-spoofer, allowing to capture behind switch-hubs. There are two versions for your convinince IcqSnif with GUI, and concole only IcqDump. The functionality is the same. Program compatible with tcpdump-files and saves its data as XML, allowing to process it by other applications.