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.

Security Onion is a free and open platform for threat hunting, enterprise security monitoring, and log management. It includes our own interfaces for alerting, dashboards, hunting, PCAP, detections, and case management. It also includes other tools such as osquery, CyberChef, Elasticsearch, Logstash, Kibana, Suricata, and Zeek.

Real-time HTTP Intrusion Detection

AD Security Intrusion Detection System

Slips, a free software behavioral Python intrusion prevention system (IDS/IPS) that uses machine learning to detect malicious behaviors in the network traffic. Stratosphere Laboratory, AIC, FEL, CVUT in Prague.

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

100Gbps Intrusion Detection and Prevention System

Implementation/Tutorial of using Automated Machine Learning (AutoML) methods for static/batch and online/continual learning

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.

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)

The OWASP SecureTea Project provides a one-stop security solution for various devices (personal computers / servers / IoT devices)

UnSupervised and Semi-Supervise Anomaly Detection / IsolationForest / KernelPCA Detection / ADOA / etc.

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

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

Data stream analytics: Implement online learning methods to address concept drift and model drift in data streams using the River library. Code for the paper entitled "PWPAE: An Ensemble Framework for Concept Drift Adaptation in IoT Data Streams" published in IEEE GlobeCom 2021.

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

Code for intrusion detection system (IDS) development using CNN models and transfer learning

Network Intrusion Detection System using Deep Learning Techniques

Entropy scanner for Linux to detect packed or encrypted binaries related to malware. Finds malicious files and Linux processes and gives output with cryptographic hashes.

A machine learning based Intrusion Detection System