Packet Manipulation

Firesheep

A Firefox extension that demonstrates HTTP session hijacking attacks.

Voip Hopper

VoIP Hopper is a GPLv3 licensed security tool, written in C, that rapidly runs a VLAN Hop security test. VoIP Hopper is a VoIP infrastructure security testing tool but also a tool that can be used to test the (in)security of VLANs.

VoiPER

VoIPER is a VoIP security testing toolkit incorporating several VoIP fuzzers and auxilliary tools to assist the auditor. It can currently generate over 200,000 SIP tests and H.323/IAX modules are in development

Fiddler Web Proxy

Fiddler is a Web Debugging Proxy which logs all HTTP(S) traffic between your computer and the Internet. Fiddler allows you to inspect traffic, set breakpoints, and "fiddle" with incoming or outgoing data. Fiddler includes a powerful event-based scripting subsystem, and can be extended using any .NET language.

ThreatSentry

ThreatSentry combines a state-of-the-art Web Application Firewall and advanced behavioral components to block any activity falling outside of trusted parameters. ThreatSentry delivers enterprise-grade, multi-layered protection and compliance

Tcp-Over-Dns

tcp-over-dns contains a special dns server and a special dns client. The client and server work in tandem to provide a TCP (and UDP!) tunnel through the standard DNS protocol.

SslStrip

SslStrip will transparently hijack HTTP traffic on a network, watch for HTTPS links and redirects, then map those links into either look-alike HTTP links or homograph-similar HTTPS links. It also supports modes for supplying a favicon which looks like a lock icon, selective logging, and session denial.

Ethereal

Ethereal is used by network professionals around the world for troubleshooting, analysis, software and protocol development, and education. It has all of the standard features you would expect in a protocol analyzer, and several features not seen in any other product. Its open source license allows talented experts in the networking community to add enhancements. It runs on all popular computing platforms, including Unix, Linux, and Windows.

Updated/new name: Wireshark

OmniPeek

OmniPeek gives network engineers real-time visibility and Expert Analysis into every part of the network from a single interface, including Ethernet, Gigabit, 10 Gigabit, 802.11a/b/g/n wireless, VoIP, and Video to remote offices. Using OmniPeek’s intuitive user interface and "top-down" approach to visualizing network conditions, network engineers—even junior staff—can quickly analyze, drill down and fix performance bottlenecks across multiple network segments, maximizing uptime and user satisfaction.

Packetyzer

Packetyzer is a network protocol analyzer for Windows, also know as a packet sniffer. It is based on the Ethereal project, but provides a native Windows GUI. Packetyzer can capture from virtually any network adapter and supports many advanced features.

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