Sniffnet
Sniffnet is a network monitoring tool designed to help users easily keep track of their Internet traffic. Whether gathering statistics or inspecting in-depth network activities, Sniffnet provides comprehensive coverage. It emphasizes user experience, ensuring ease of use compared to other cumbersome network analyzers. Completely free and open source, Sniffnet is dual-licensed under MIT or Apache-2.0, with the full source code available on GitHub. Developed entirely in Rust, it leverages this modern programming language to build efficient and reliable software, emphasizing performance and safety. Key features include selecting a network adapter to inspect, applying filters to observed traffic, viewing overall statistics and real-time charts of Internet traffic, exporting comprehensive capture reports as PCAP files, identifying over 6,000 upper-layer services, protocols, trojans, and worms, discovering domain names and ASNs of hosts, pinpointing connections in the local network.
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Xplico
Xplico is installed in the major distributions of digital forensics and penetration testing: Kali Linix, BackTrack, DEFT, Security Onion, Matriux, BackBox, CERT Forensics Tools, Pentoo and CERT-Toolkit. Xplico allows concurrent access by multiple users. Any user can manage one or more Cases. The UI is a Web User Interface and its backend DB can be SQLite, MySQL or PostgreSQL. Xplico can be used as a Cloud Network Forensic Analysis Tool. The goal of Xplico is extract from an internet traffic capture the applications data contained. For example, from a pcap file Xplico extracts each email (POP, IMAP, and SMTP protocols), all HTTP contents, each VoIP call (SIP), FTP, TFTP, and so on. Xplico isn’t a network protocol analyzer. Xplico is an open source Network Forensic Analysis Tool (NFAT). At each data reassembled by Xplico is associated a XML file that uniquely identifies the flows and the pcap containing the data reassembled.
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tcpdump
Tcpdump is a powerful command-line packet analyzer that allows users to display the contents of network packets transmitted or received over a network to which the computer is attached. It operates on most Unix-like systems, including Linux, Solaris, FreeBSD, NetBSD, OpenBSD, and macOS, utilizing the libpcap library for network traffic capture. Tcpdump can read packets from a network interface card or from a previously created saved packet file, and it provides options to write packets to standard output or a file. Users can apply BPF-based filters to limit the number of packets processed, enhancing usability on networks with high traffic volumes. The tool is distributed under the BSD license, making it free software. In many operating systems tcpdump is available as a native package or port, which simplifies installation of updates and long-term maintenance.
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NetworkMiner
NetworkMiner is a network forensics tool that extracts artifacts such as files, images, emails, and passwords from captured network traffic in PCAP files. It can also capture live network traffic by sniffing a network interface. Detailed information about each IP address in the analyzed network traffic is aggregated into a network host inventory, which can be used for passive asset discovery and to get an overview of communicating devices. NetworkMiner is primarily designed to run on Windows but can also be used on Linux. Since its first release in 2007, it has become a popular tool among incident response teams and law enforcement and is used by companies and organizations worldwide.
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