Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine developed by the OISF and the Suricata community.

OSSEC is an Open Source Host-based Intrusion Detection System that performs log analysis, file integrity checking, policy monitoring, rootkit detection, real-time alerting and active response.

Real-time HTTP Intrusion Detection

Database security suite. Database proxy with field-level encryption, search through encrypted data, SQL injections prevention, intrusion detection, honeypots. Supports client-side and proxy-side ("transparent") encryption. SQL, NoSQL.

AD Security Intrusion Detection System

Mac Intrusion Detection Analysis System

PHPIDS (PHP-Intrusion Detection System) is a simple to use, well structured, fast and state-of-the-art security layer for your PHP based web application

Anomaly Detection on Dynamic (time-evolving) Graphs in Real-time and Streaming manner. Detecting intrusions (DoS and DDoS attacks), frauds, fake rating anomalies.

Network Intrusion Detection KDDCup '99', NSL-KDD and UNSW-NB15

100Gbps Intrusion Detection and Prevention System

Hardware-based attestation and intrusion detection app for Android. It provides both local verification with another Android device via QR codes and optional scheduled server-based verification with support for alert emails. It uses hardware-backed keys and attestation support as the foundation and chains trust to the app for software checks.

By Kprobe technology Open Source Host-based Intrusion Detection System(HIDS), from E_Bwill.

Code for IDS-ML: intrusion detection system development using machine learning algorithms (Decision tree, random forest, extra trees, XGBoost, stacking, k-means, Bayesian optimization..)

Wireless Auditing, Intrusion Detection & Prevention System

A Windows packet filtering library that enables low-level network packet interception, inspection, and modification. Ideal for building custom firewalls, VPN solutions, intrusion detection systems, and traffic analysis tools.

A Linux Host-based Intrusion Detection System based on eBPF.

This script will generate payloads for basic intrusion detection avoidance. It utilizes publicly demonstrated techniques from several different sources. Written by Larry Spohn (@Spoonman1091) Payload written by Ben Mauch (@Ben0xA) aka dirty_ben

psad: Intrusion Detection and Log Analysis with iptables

A network intrusion detection system based on incremental statistics (AfterImage) and an ensemble of autoencoders (KitNET)

iDefender - The Infinite Potential Host Intrusion Prevention System (HIPS) & Real-time Endpoint Detection and Response for Home

Hades is a Host-Based Intrusion Detection System based on eBPF(mainly)

This is the repo of the research paper, "Evaluating Shallow and Deep Neural Networks for Network Intrusion Detection Systems in Cyber Security".

Machine Learning with the NSL-KDD dataset for Network Intrusion Detection

An Intrusion Detection System library loosely based on PHP IDS

Useful network monitoring, analysis, and active response tools used or mentioned in the SANS SEC503 course (https://www.sans.org/course/intrusion-detection-in-depth)

Hands-on cybersecurity projects to enhance skills in phishing investigation, malware analysis, network intrusion detection, and DDoS attack response.

Awesome list of AI for cybersecurity including network (network traffic analysis and intrusion detection), endpoint (anti-malware), application (WAF or database firewalls), user (UBA), process behavior (anti-fraud).

An All-In-One home intrusion detection system (IDS) solution for the Raspberry PI.

Machine Learning for Network Intrusion Detection & Misc Cyber Security Utilities

Network Intrusion Detection based on various machine learning and deep learning algorithms using UNSW-NB15 Dataset