Sniffer: Dsniff

dsniff
http://www.monkey.org/~dugsong/dsniff/

Lleva varias herramientas muy intersantes:

arpspoof,dnsspoof, etc -->

dsniff
simple password sniffer. handles FTP, Telnet, HTTP, POP, NNTP, IMAP, SNMP, LDAP, Rlogin, NFS, SOCKS, X11, IRC, AIM, CVS, ICQ, Napster, Citrix ICA, Symantec pcAnywhere, NAI Sniffer, Microsoft SMB, and Oracle SQL*Net auth info. goes beyond most sniffers in that it minimally parses each application protocol, only saving the "interesting" bits. uses Berkeley DB as its output file format, logging only unique auth info. supports full TCP/IP reassembly, courtesy of libnids (all of the following tools do, as well).

mailsnarf
a fast and easy way to violate the Electronic Communications Privacy Act of 1986 (18 USC 2701-2711), be careful. outputs all messages sniffed from SMTP traffic in Berkeley mbox format, suitable for offline browsing with your favorite mail reader (mail -f, pine, etc.).

urlsnarf
output all requested URLs sniffed from HTTP traffic in CLF (Common Log Format, used by almost all web servers), suitable for offline post-processing with your favorite web log analysis tool (analog, wwwstat, etc.).

webspy
sends URLs sniffed from a client to your local Netscape browser for display, updated in real-time (as the target surfs, your browser surfs along with them, automagically). a fun party trick. :-)