A package for capturing and analyzing network flow data and intraflow data, for network research, forensics, and security monitoring. Joy is a BSD-licensed libpcap-based software package for extracting data features from live network traffic or packet capture (pcap) files, using a flow-oriented model similar to that of IPFIX or Netflow, and then representing these data features in JSON. It also contains analysis tools that can be applied to these data files. Joy can be used to explore data at scale, especially security and threat-relevant data. JSON is used in order to make the output easily consumable by data analysis tools. While the JSON output files are somewhat verbose, they are reasonably small, and they respond well to compression. Joy can be configured to obtain intraflow data, that is, data and information about events that occur within a network flow, including: the sequence of lengths and arrival times of IP packets, up to some configurable number of packets. the empirical probabilit
FEATURES
ALTERNATIVES
A method for profiling SSL/TLS Clients with easy-to-produce client fingerprints.
AWS Shield provides managed DDoS protection for your applications, automatically detecting and mitigating sophisticated network-level DDoS events.
A technique to encode data within DNS queries for covert communication channels.
DirSearch is a simple tool for finding files and directories on a web server.
A tool for parsing Google Protobuf encoded blobs without the accompanying definition, providing a colored representation of the contents.
PINNED

Mandos Brief Newsletter
A weekly newsletter providing cybersecurity leadership insights, industry updates, and strategic guidance for security professionals advancing to management positions.

PTJunior
An AI-powered penetration testing platform that autonomously discovers, exploits, and documents vulnerabilities while generating NIST-compliant reports.

CTIChef.com Detection Feeds
A tiered cyber threat intelligence service providing detection rules from public repositories with varying levels of analysis, processing, and guidance for security teams.

ImmuniWeb® Discovery
ImmuniWeb Discovery is an attack surface management platform that continuously monitors an organization's external digital assets for security vulnerabilities, misconfigurations, and threats across domains, applications, cloud resources, and the dark web.

Checkmarx SCA
A software composition analysis tool that identifies vulnerabilities, malicious code, and license risks in open source dependencies throughout the software development lifecycle.

Orca Security
A cloud-native application protection platform that provides agentless security monitoring, vulnerability management, and compliance capabilities across multi-cloud environments.

DryRun
A GitHub application that performs automated security code reviews by analyzing contextual security aspects of code changes during pull requests.