Linux intrusion detection systems

Intrusion Detection and Prevention Systems for Linux

Compare the Top Intrusion Detection and Prevention Systems for Linux of 2023

What are Intrusion Detection and Prevention Systems for Linux?

Intrusion detection and prevention systems (IDPS or IPS) enable IT teams and IT security professionals to identify potential threats, intrusions, and attacks on an organization’s networks, applications, or systems, as well as provide tools to prevent intrusions and attacks. Compare the best Intrusion Detection and Prevention systems for Linux currently available using the table below.

Heimdal Endpoint Detection and Response (EDR)

Heimdal® Endpoint Detection and Response is our proprietary multi-solution service providing unique prevention, threat-hunting, and remediation capabilities. It combines some of the most advanced threat-hunting technologies: — Next-Gen Antivirus — Privileged Access Management — Application Control — Ransomware Encryption Protection — Patch & Asset Management — Threat Prevention ( DNS based ) With 6 modules (up to 9) working together seamlessly under one convenient roof, all within one agent and one platform, Heimdal Endpoint Detection and Response grants you access to all the essential cybersecurity layers your business needs to protect itself against both known and unknown online and insider threats. Our state-of-the-art product empowers you to quickly and effortlessly respond to sophisticated malware with stunning accuracy, protecting your digital assets and your reputation in the process as well.

Blumira

Blumira’s mission is to help SMBs and mid-market companies detect and respond to cybersecurity threats faster to stop breaches and ransomware. Blumira’s all-in-one SIEM+XDR platform combines logging with automated detection and response for better security outcomes and consolidated security spend. — Flexibility of an open XDR: Open platform integrates with multiple vendors for hybrid coverage of cloud, endpoint, identity, servers and more — Automation accelerates security: Deploy in minutes; stop threats immediately with automated response to isolate devices and block malicious traffic — Satisfy more compliance controls: Get more in one – SIEM w/1 year of data retention, endpoint, automated response & 24/7 SecOps support* — Managed platform saves time: Blumira’s team manages the platform to do threat hunting, data parsing and analysis, correlation and detection at scale

Imunify360

Imunify360 is a security solution for web-hosting servers. Imunify360 goes beyond antivirus and WAF and is a combination of an Intrusion Prevention and Detection system, a Application Specific Web Application Firewall, Real-time Antivirus protection, a Network Firewall, and Patch Management components in one security suite. Imunify360 is a fully-automated solution and it collects all statistics under an intuitive dashboard.

ACSIA

ACSIA it is a ‘post-perimeter’ security tool which complements a traditional perimeter security model. It resides at the Application or Data layer. It monitors and protects the the platforms (physical/ VM/ Cloud/ Container platforms) where the data is stored which are the ultimate target of every attacker. Most companies secure their enterprise to ward off cyber adversaries by using perimeter defenses and blocking known adversary indicators of compromise (IOC). Adversary pre-compromise activities are largely executed outside the enterprise’s field of view, making them more difficult to detect. ACSIA is focused on stopping cyber threats at the pre attack phase. It is a hybrid product incorporating a SIEM (Security Incident and Event Management), Intrusion Detection Systems (IDS) Intrusion Prevention Systems (IPS), Firewall and much more. — Built for linux environments — Also monitors Windows servers — Kernel Level monitoring — Internal Threat detection

Atomicorp Enterprise OSSEC

Atomic Enterprise OSSEC is the commercially enhanced version of the OSSEC Intrusion Detection System brought to you by the sponsors of the OSSEC project. OSSEC is the world’s most popular open source host-based intrusion detection system (HIDS) used by tens of thousands of organizations. Atomicorp extends OSSEC with a management console (OSSEC GUI), advanced file integrity management (FIM), PCI compliance auditing and reporting, expert support and more. — Intrusion Detection — File Integrity Monitoring — Log Management — Active Response — OSSEC GUI and Management — OSSEC Compliance Reporting — PCI, GDPR, HIPAA, and NIST compliance — Expert OSSEC Support Get expert support for OSSEC servers and agents as well as help developing OSSEC rules. More info on Atomic Enterprise OSSEC is available at: https://www.atomicorp.com/atomic-enterprise-ossec/

Armor Anywhere

Whether your data is stored in a cloud environment (private, public, or hybrid) or you’re hosting it onsite, Armor will keep it safe. We’ll help you zero in on real threats and filter out the rest with powerful analytics, workflow automation, and a team of experts working day and night. When (not if) there is an attack, we don’t just send an alert. Our Security Operations Center experts are on it immediately, guiding your security team on how to respond and resolve the problem. Our solutions prefer open source software and open frameworks, and cloud-native implementations freeing you from conventional provider lock-in. Our IaC-based continuous deployment model easily integrates into your existing DevOps pipeline, or we can manage the stack for you. We aim to empower your business by making security and compliance accessible, understandable, and easy to implement and maintain.

Suricata

The Suricata engine is capable of real time intrusion detection (IDS), inline intrusion prevention (IPS), network security monitoring (NSM) and offline pcap processing. Suricata inspects the network traffic using a powerful and extensive rules and signature language, and has powerful Lua scripting support for detection of complex threats. With standard input and output formats like YAML and JSON integrations with tools like existing SIEMs, Splunk, Logstash/Elasticsearch, Kibana, and other database become effortless. Suricata’s fast paced community driven development focuses on security, usability and efficiency. The Suricata project and code is owned and supported by the Open Information Security Foundation (OISF), a non-profit foundation committed to ensuring Suricata’s development and sustained success as an open source project.

CrowdSec

CrowdSec is a free, open-source and collaborative IPS to analyze behaviors, respond to attacks & share signals across the community, outnumbering cybercriminals all together. Set up your own intrusion detection system. Apply behavior scenarios to identify cyber threats. Share and benefit from a crowdsourced and curated cyber threat intelligence system. Define the type of remediation you want to apply and where. Leverage the community’s IP blocklist and automate your security. CrowdSec is designed to run seamlessly on virtual machines, bare-metal servers, containers or to be called directly from your code with our API. Our strength comes from our cybersecurity community that is burning cybercriminals’ anonymity. By sharing IP addresses that aggressed you, you help us curate and redistribute a qualified IP blocklist to protect everyone. CrowdSec is 60x faster than tools like Fail2ban and can parse massive amounts of logs in no time.

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Best IDS for Linux

Security is a vital issue in any system. Some believe that * nix systems are invulnerable to any attack or that they cannot be infected with malware. And that is a misconception. You always have to keep your guard, nothing is 100% safe. Therefore, you should implement systems that help you detect, stop, or minimize the damage of a cyber attack. In this article you will see what is an IDS and some of the best for your Linux distro.

What is an IDS?

Un IDS (Intrusion Detection System), or intrusion detection system, is a monitoring system that detects suspicious activities and generates a series of alerts to report violations (they can be detected by comparing file signatures, scanning patterns or malicious anomalies, monitoring behavior, configurations, network traffic . ) that may have occurred in the system.

Thanks to these alerts, you can investigate the source of the problem and take appropriate action to remedy the threat. Although, it does not detect all attacks, there are evasion methods, and it does not block them, it only reports them. In addition, if it is based on signatures, the most recent threats (0-day), can also escape and go undetected.

Types

Fundamentally, there are two types of IDS:

• HIDS (Host-Based IDS)— It is deployed on a particular endpoint or machine and is designed to detect internal and external threats. Examples are OSSEC, Wazuh, and Samhain.
• NIDS (Network-based IDS)— To monitor an entire network, but lack visibility within the endpoints connected to that network. Examples are Snort, Suricata, Bro, and Kismet.

Differences with a firewall, IPS and UTM, SIEM .

There are various terms that can be misleading, but that have differences with an IDS. Some of the security-related terms that you should also know are:

• Firewall: It looks more like an IPS than an IDS, as it is an active detection system. A firewall is designed to block or allow certain communications, depending on the rules that have been configured. It can be implemented both by software and by hardware.
• IPS: is the acronym for Intrusion Prevention System, and is a complement to an IDS. It is a system capable of preventing certain events, therefore it is an active system. Within the IPS, 4 fundamental types can be distinguished:
  • NIPS— Network-based and therefore look for suspicious network traffic.
  • WIPS extension: Like NIPS, but for wireless networks.
  • NBA— is based on the behavior of the network, examining unusual traffic.
  • HIPS— Look for suspicious activity on unique hosts.
  • SIMs.: is the acronym for Security Information Manager, or security information management. In this case, it is a central registry that groups all the security-related data to generate reports, analyze, make decisions, etc. That is, a set of capacities to store this information in the long term.
  • SEM: a Security Event Manager function, or security event management, is responsible for detecting abnormal patterns in accesses, provides the ability to monitor in real time, correlation of events, etc.
  • SIEM: it is the combination of SIM and SEM, and it is one of the main tools used in SOC or security operations centers.

  Best IDS for Linux

  

  As for the the best IDS systems you can find for GNU / Linux, you have the following:

  • Bro (Zek): It is of the NIDS type and has functions of traffic logging and analysis, SNMP traffic monitoring, and FTP, DNS, and HTTP activity, etc.
  • OSSEC: It is HIDS type, open source and free. In addition, it is cross-platform, and its records also include FTP, web server data and email.
  • Snort: it is one of the most famous, open source, and NIDS type. It includes sniffer for packets, log for network packets, threat intelligence, signature blocking, real-time updates of security signatures, ability to detect very numerous events (OS, SMB, CGI, buffer overflow, hidden ports,…).
  • Suricata: another type NIDS, also open source. It can monitor low-level activity, such as TCP, IP, UDP, ICMP, and TLS, in real time for applications such as SMB, HTTP, and FTP. It allows integration with third-party tools such as Anaval, Squil, BASE, Snorby, etc.
  • Security onion: NIDS / HIDS, another IDS system specially focused on Linux distros, with the ability to detect intruders, business monitoring, packet sniffer, includes graphics of what is happening, and you can use tools such as NetworkMiner, Snorby, Xplico, Sguil, ELSA , and Kibana.

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