Get OSSEC

Pick the OSSEC version you want to install.

Free and basic open source OSSEC is just a download away below. Check out our community supported OSSEC category below.

If you need enterprise-level intrusion protection, integration, and support out of the box, commercial Atomic OSSEC is the ideal option. Get the most advanced and comprehensive OSSEC, Atomic OSSEC, for as little as under $5 per agent per month. Learn more.  

Community Supported OSSEC Commercially Supported Atomic OSSEC Atomic OSSEC as a SaaS
Version 3.8.0 Version 6.0.61+ Version 6.0.61+
This is OSSEC at its most basic for hobbyists and do-it-yourselfers. You can tailor the free rules through OSSEC’s configuration options, adding custom alert rules and writing scripts to take action when alerts occur. 

Download OSSEC. 

OSSEC+ Version 3.8.0

Want more from your OSSEC install? Choose the OSSEC+ version and you’ll get hundreds of additional rules, and machine learning—all for free simply by registering.

*Note that OSSEC+ is a free and basic ruleset. It does not include SIEM, advanced malware detection and response features, vulnerability scanning, compliance scanning, frequent updates, or professional support. 

 Atomic OSSEC is the most advanced version of OSSEC, an extended detection and response (XDR) solution that provides the security strength, innovation, and coverage enterprises and federal agencies require. With prices starting at under $5 per endpoint agent per month, Atomic OSSEC offers an enterprise-strength XDR for large and small organization budgets alike. Volume discounts available. Save tens of thousands over traditional FIM solutions.  Get a quote, request a demo or just call +1-703-299-6667.

Atomic OSSEC includes approximately 10X the number of rules of the functionally limited freeware OSSEC+. This equips your organization with advanced capabilities, such as central AV management, malware memory analysis, vulnerability detection, real-time FIM, SIEM, compliance benchmarking, reporting, and dedicated professional support you won’t get with free, community OSSEC.

Learn more about commercial Atomic OSSEC XDR with professional support.

Request a Demo

 Atomic OSSEC is available in an Atomicorp managed software as a service (SaaS) offering, which combines convenience, ease, reliability, advanced endpoint and cloud workload protection, and support in a single managed XDR solution. Get the flexibility of OSSEC, but with the built-in integrations you would expect, plus custom rule development, system maintenance and configuration management, and daily enhancements and support.  

Atomic OSSEC SaaS provides remediation of events and incidents, with the ability to resolve threats through automation and engineering expertise. Let Atomicorp handle the hardware and software updates; all you have to do is handle the data. Detect flaws and fix them, report them for analysis, compliance and risk management, with Atomicorp OSSEC SaaS.

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Community Supported OSSEC

Include:

  • Log-based Intrusion Detection
  • Rootkit Detection
  • Malware Detection
  • Active Response
  • File Integrity Monitoring
  • System Inventory

OSSEC+ adds:

  • Machine Learning
  • Adds Hundreds of Rules
  • Basic Crowdsourced Threat Intelligence

Adds…

  • Extensive Support for Current and Legacy Linux, Windows, AIX, Solaris, and other OSs
  • Web-based Management Console
  • Group Agent Management
  • Software Bill of Materials (SBOM) Inventory
  • Integrated CIS Compliance Tools
  • Over 10,000 Security and Compliance Rules
  • More than 6,000 IDS and FIM Rules
  • Runs Everywhere: Cloud, on-premise, containerized, fully air-gapped environments, and more.
  • Real-time forensic File Integrity Monitoring
  • Central AV Management and Load Optimization
  • Integrated Malware Protection (file-based and fileless)
  • Integrated Data Loss Prevention
  • Endpoint Agent Firewall Protection
  • Host-based Zero-Load Vulnerability Scanning
  • Advanced Crowdsourced Global Threat Intelligence
  • Cursor AI to Aid Developers in Writing and Securing Code  
  • Compliance Auditing & Reporting
  • Role Based Access Control
  • Report Generation System and Search Engine
  • Configuration Management System
  • Rollback Control System
  • Native Cloud Provider Integration (AWS, Azure, GCP)
  • Native SIEM Integration (Splunk, ArcSight, others)
  • Native OpenSearch Integration
  • Slack, PagerDuty, Jira Integrations
  • Cloudflare Integration
  • Output Data Routing
  • Long Term Data Storage Integrations
  • System and Application Inventory Module
  • Advanced Encryption

Includes…

  • Machine Learning
  • Log-based Intrusion Detection
  • Rootkit Detection
  • Malware Detection
  • Active Response
  • Compliance Auditing
  • File Integrity Monitoring
  • And more
  • All the same capabilities of on-premise Atomic OSSEC, but in a managed, cloud-based hub deployment
  • Reduces long-term capital investment costs on security software
  • Less management, configuration, and maintenance hassle
  • Dedicated support staff expertise—365×7
  • Plus, all the features and functionality of on-premise Atomic OSSEC software 

Visit Atomicorp
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