tcpxtract – Extract Files from Network Traffic AKA Carving


tcpxtract is a tool for extracting files from network traffic based on file signatures. Extracting files based on file type headers and footers (sometimes called “carving”) is an age old data recovery technique. Tools like Foremost employ this technique to recover files from arbitrary data streams. tcpxtract uses this technique specifically for the application of intercepting files transmitted across a network.

Other tools that fill a similar need are driftnet and EtherPEG. driftnet and EtherPEG are tools for monitoring and extracting graphic files on a network and is commonly used by network administrators to police the internet activity of their users. The major limitations of driftnet and EtherPEG is that they only support three filetypes with no easy way of adding more. The search technique they use is also not scalable and does not search across packet boundries.

tcpxtract features the following:


  • Supports 26 popular file formats out-of-the-box. New formats can be added by simply editing its config file.
  • With a quick conversion, you can use your old Foremost config file with tcpxtract.
  • Custom written search algorithm is lightning fast and very scalable.
  • Search algorithm searches across packet boundries for total coverage and forensic quality.
  • Uses libpcap, a popular, portable and stable library for network data capture.
  • Can be used against a live network or a tcpdump formatted capture file.

You can download tcpxtract here:

tcpxtract Version 1.0.1 source

Or read more here.

Posted in: Forensics, Hacking Tools, Networking Hacking Tools

, ,


Latest Posts:


APT-Hunter - Threat Hunting Tool via Windows Event Log APT-Hunter – Threat Hunting Tool via Windows Event Log
APT-Hunter is a threat hunting tool for windows event logs made from the perspective of the purple team mindset to provide detection for APT movements hidden in the sea of windows event logs.
GitLab Watchman - Audit Gitlab For Sensitive Data & Credentials GitLab Watchman – Audit Gitlab For Sensitive Data & Credentials
GitLab Watchman is an app that uses the GitLab API to audit GitLab for sensitive data and credentials exposed internally, this includes code, commits, wikis etc
GKE Auditor - Detect Google Kubernetes Engine Misconfigurations GKE Auditor – Detect Google Kubernetes Engine Misconfigurations
GKE Auditor is a Java-based tool to detect Google Kubernetes Engine misconfigurations, it aims to help security & dev teams streamline the configuration process
zANTI - Android Wireless Hacking Tool Free Download zANTI – Android Wireless Hacking Tool Free Download
zANTI is an Android Wireless Hacking Tool that functions as a mobile penetration testing toolkit that lets you assess the risk level of a network using mobile.
HELK - Open Source Threat Hunting Platform HELK – Open Source Threat Hunting Platform
The Hunting ELK or simply the HELK is an Open-Source Threat Hunting Platform with advanced analytics capabilities such as SQL declarative language, graphing etc
trape - OSINT Analysis Tool For People Tracking Trape – OSINT Analysis Tool For People Tracking
Trape is an OSINT analysis tool, which allows people to track and execute intelligent social engineering attacks in real-time.


2 Responses to tcpxtract – Extract Files from Network Traffic AKA Carving

  1. Sandeep Nain July 3, 2007 at 12:14 am #

    Wow, It sounds like a ‘must have’ tool.
    Thanks Darknet…

  2. Freddy Chang August 17, 2007 at 12:54 pm #

    Any plans of a windows port?