#1IDS/IPS systems, network monitoring, anomaly-based detection, and threat alerting tools.
Kitploit recommended

SO-CRATES: Security Onion Containerized Rapid Analysis of Threats, Evil, and Sus!
🍓📡🍍Monitor illegal wireless network activities. (Fake Access Points), (WiFi Threats: KARMA Attacks, WiFi Pineapple, Similar SSID, OPN Network…

Documentation and scripts to properly enable Windows event logs.

Endpoint behavior monitoring and analysis system for processes, files, registry, and networks. Supports scripting, extensions, and plugins for…

Real Intelligence Threat Analytics (RITA) is a framework for detecting command and control communication through network traffic analysis.

Detect Evil Maid Attacks

Host-local Linux security orchestrator enforcing nftables policy with HIDS/HIPS telemetry, bounded threat-intelligence feeds, out-of-band WAAP log…

🐍 High-performance, multi-threaded YARA & IOC scanner

Windows Analysis and Research Toolkit

Production-ready detection & response queries for osquery

Sysmon configuration file template with default high-quality event tracing

PCRE RegEx matching Log4Shell CVE-2021-44228 IOC in your logs

Collection of private Yara rules.

Pulled Pork for Snort and Suricata rule management (from Google code)

A modular, skill-based autonomous Security Operations Center (SOC) agent that monitors OpenSearch/Elasticsearch data, builds RAG-based behavioral…

The Sigma command line interface based on pySigma

Open-source blue team tool that protects Linux and Windows systems using multiple host and network defense and detection methods.