WireShark 1.4.3

WireShark is probably one of the most famous and most frequently used network sniffer. People like to call it the Network Protocol Analyzer too. Call it whatever, but, your security tool aresenal is incomplete without WireShark. It was previously called as Ethereal.


Also, it is open source. It is cross platform and it has been in development for more than 10 years now! It also appears in the TOP 100 tools on SecTools. This application is very similar to TCPDump in its working, but it has better sorting & grouping actions. It also has a GUI, which TCPDump lacks. It allows the user to see all traffic being passed over the network. It uses pcap & WinPcap where applicable to capture packets.


Here is the starting introduction video for newbies







Features

* Deep inspection of hundreds of protocols, with more being added all the time
* Live capture and offline analysis
* Standard three-pane packet browser
* Multi-platform: Runs on Windows, Linux, OS X, Solaris, FreeBSD, NetBSD, and many others
* Captured network data can be browsed via a GUI, or via the TTY-mode TShark utility
* The most powerful display filters in the industry
* Rich VoIP analysis
* Read/write many different capture file formats: tcpdump (libpcap), Pcap NG, Catapult DCT2000, Cisco Secure IDS iplog, Microsoft Network Monitor, Network General Sniffer® (compressed and uncompressed), Sniffer® Pro, and NetXray®, Network Instruments Observer, NetScreen snoop, Novell LANalyzer, RADCOM WAN/LAN Analyzer, Shomiti/Finisar Surveyor, Tektronix K12xx, Visual Networks Visual UpTime, WildPackets EtherPeek/TokenPeek/AiroPeek, and many others
* Capture files compressed with gzip can be decompressed on the fly
* Live data can be read from Ethernet, IEEE 802.11, PPP/HDLC, ATM, Bluetooth, USB, Token Ring, Frame Relay, FDDI, and others (depending on your platfrom)
* Decryption support for many protocols, including IPsec, ISAKMP, Kerberos, SNMPv3, SSL/TLS, WEP, and WPA/WPA2
* Coloring rules can be applied to the packet list for quick, intuitive analysis
* Output can be exported to XML, PostScript®, CSV, or plain text

Download Wireshark v1.4.3 & Wireshark v1.2.14 (wireshark-win32-1.4.3.exe/wireshark-1.4.3.tar.bz2) here.