SniffPass is small freeware utility that listens to your network, capture the passwords that pass through your network adapter, and display them on the screen instantly. SniffPass can capture the passwords of the following Protocols: POP3, IMAP4, SMTP, FTP, and HTTP (basic authentication passwords).
You can use this utility to recover lost Web/FTP/Email passwords.
SniffPass can capture passwords on any 32-bit Windows operating system (Windows 98/ME/NT/2000/XP/2003/Vista) as long as WinPcap capture driver is installed and works properly with your network adapter.
Under Windows 2000/XP (or greater), SniffPass also allows you to capture TCP/IP packets without installing any capture driver, by using ‘Raw Sockets’ method. However, this capture method has the following limitation:
On Windows XP/SP1 passwords cannot be captured at all – Thanks to Microsoft’s bug that appeared in SP1 update…
This bug was fixed on SP2 update, but under Vista, Microsoft returned back the outgoing packets bug of XP/SP1.
This utility is released as freeware.
Download: SniffPass 1.11