27 February 2008 | 65,704 views

NetworkMiner – Passive Sniffer & Packet Analysis Tool for Windows

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NetworkMiner is a passive network sniffer/packet capturing tool for Windows with an easy to use interface. It can detect operating systems, sessions, hostnames, open ports etc. without putting any traffic on the network. NetworkMiner can also parse PCAP files for off-line analysis.

NetworkMiner makes use of OS fingerprinting databases from both p0f (by Michal Zalewski) and Ettercap (by Alberto Ornaghi and Marco Valleri) in order to do as correct passive OS fingerprinting as possible. NetworkMiner also uses the MAC-vendor list from Nmap (Fyodor).

The purpose of NetworkMiner is to collect data about hosts on the network rather than to collect data regarding the traffic on the network. The main view is host centric (information grouped per host) rather than packet centric (information showed as a list of packets/frames).

NetworkMiner can extract files transferred over the network by parsing a PCAP file or by sniffing traffic directly from the network. This is a neat function that can be used to extract and save media files (such as audio or video files) which are streamed across a network.

Another very useful feature is that the user can search sniffed or stored data for keywords. NetworkMiner allows the user to insert arbitrary string or byte-patterns that shall be searched for with the keyword search functionality.

A feature the author wants to include in future versions of NetworkMiner is to use statistical methods to do protocol identification (protocol fingerprinting) of a TCP session or UDP data. This means that instead of looking at the port number to guess which protocol is used on top of the TCP/UDP packet NetworkMiner will identify the correct protocol based on the TCP/UDP packet content. In this way NetworkMiner will be able to identify protocols even if the service is run on a non-standard port.

You can download NetworkMiner here:


Or you can read more here.

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10 Responses to “NetworkMiner – Passive Sniffer & Packet Analysis Tool for Windows”

  1. Pantagruel 27 February 2008 at 11:06 am Permalink

    Nice one. The first thing I thought was, p0f with an clickerdiclick interface. Definitely one piece of software to watch developing

  2. Le00 27 February 2008 at 4:29 pm Permalink

    That’s nice. Also check http://w3af.sourceforge.net. It’s a really good audit framework, that can be useful for pentests.

  3. eM3rC 28 February 2008 at 12:37 am Permalink

    Huge potential for this piece of software. Like Pantagruel will be watching this develop.

  4. Pantagruel 2 March 2008 at 9:40 am Permalink

    Took it for a test drive, it works very well and is indeed less intimidating than p0f

  5. James C 6 March 2008 at 3:20 pm Permalink

    Works like a charm! love it.

  6. Pantagruel 8 March 2008 at 7:56 pm Permalink

    NetworkMiner-0.83 was released 1st of march

  7. fever 8 April 2008 at 6:55 pm Permalink

    sounds like something so keep your eyes on.

  8. Erik 21 May 2008 at 6:47 pm Permalink

    I released version 0.84 this weekend. So NetworkMiner now supports passive OS fingerprinting through sniffing of DHCP packets (the previous versions only used TCP packets). Network Miner also supports WiFi sniffing of IEEE 802.11 WLAN traffic.

    I’ve updated the NetworkMiner Wiki at:

  9. Pantagruel 22 May 2008 at 10:01 pm Permalink


    Thanks for the heads up, will take the new version for a test drive an see if the OS detection has become more acurate.