NetworkMiner is a free and open-source network forensic analysis tool (NFAT) developed by Netresec. It can be used to passively capture and analyze network traffic, extracting information such as operating systems, applications, open ports, and even files and passwords. NetworkMiner can also be used to parse PCAP files for off-line analysis.
Here are some of the features of NetworkMiner:
- Passive network sniffing: NetworkMiner can capture network traffic without putting any additional load on the network. This makes it ideal for use in a production environment without disrupting network operations.
- Protocol identification: NetworkMiner can identify over 600 different network protocols, including common protocols such as HTTP, FTP, and SMTP, as well as less common protocols such as SSH and Telnet.
- File extraction: NetworkMiner can extract files that are transferred over the network, including images, documents, and even executable files.
- Password extraction: NetworkMiner can extract passwords from network traffic, including passwords for common protocols such as FTP, SSH, and Telnet.
- PCAP parsing: NetworkMiner can parse PCAP files for off-line analysis. This can be useful for analyzing large amounts of network traffic or for analyzing traffic that was captured at a later time.
NetworkMiner is a powerful tool that can be used for a variety of purposes, including:
- Network troubleshooting: NetworkMiner can be used to troubleshoot network problems by identifying the source and destination of network traffic, as well as the protocols that are being used.
- Security auditing: NetworkMiner can be used to audit network security by identifying potential security vulnerabilities, such as open ports and weak passwords.
- Incident response: NetworkMiner can be used to investigate security incidents by analyzing network traffic that was captured before, during, and after the incident.
Overall, NetworkMiner is a powerful and versatile tool that can be used for a variety of network forensic analysis tasks. It is free and open-source, making it a cost-effective option for organizations of all sizes.