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Airsnort : 802.11 WEP Encryption Cracking Tool AirSnort is a wireless LAN (WLAN) tool that recovers encryption keys. It was developed by the Shmoo Group and operates by passively monitoring transmissions, computing the encryption key when enough packets have been…
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GnuPG_PGP
GnuPG / PGP : Secure your files and communication w/advanced encryption PGP is the famous encryption program by Phil Zimmerman which helps secure your data from eavesdroppers and other risks. GnuPG is a very well-regarded open source implementation of the…
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Sam Spade
Sam Spade : Freeware Windows network query tool Sam Spade provides a consistent GUI and implementation for many handy network query tasks. It was designed with tracking down spammers in mind, but can be useful for many other network exploration,…
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Scapy
Scapy : Interactive packet manipulation tool Scapy is a powerful interactive packet manipulation tool, packet generator, network scanner, network discovery tool, and packet sniffer. It provides classes to interactively create packets or sets of packets, manipulate them, send them over…
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L0phtcrack
L0phtcrack : Windows password auditing and recovery application L0phtCrack, also known as LC5, attempts to crack Windows passwords from hashes which it can obtain (given proper access) from stand-alone Windows NT/2000 workstations, networked servers, primary domain controllers, or Active Directory.…
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Perl_Python_Ruby
Perl / Python / Ruby : Portable, general-purpose scripting languages While many canned security tools are available on this site for handling common tasks, scripting languages allow you to write your own (or modify existing ones) when you need something…
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Retina
Retina : Commercial vulnerability assessment scanner by eEye Like Nessus, Retina’s function is to scan all the hosts on a network and report on any vulnerabilities found. It was written by eEye, who are well known for their security research.