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Navigating IT security, host intrusion detection software (HIDS) acts as a fortified firewall, complemented by an inline intrusion prevention system to safeguard IP addresses from cyberattacks and anomaly-based detection. Ideal for diverse operating systems, these tools detect malware and anomalies, fortify the application layer, fend off DDoS attacks, and utilize packet sniffers to scrutinize network traffic. Combining automation and compliance reporting, this software offers indispensable threat protection in the current digital landscape.

What Is An Intrusion Detection Software?

Intrusion detection software is a specialized tool designed to monitor networks and systems for malicious activities or policy violations for the next generation. It acts as a digital sentinel, alerting system administrators and security professionals to any suspicious behavior. Organizations employ this software to safeguard digital assets, ensuring data integrity, confidentiality, and availability.

Whether combatting unauthorized access, detecting network traffic anomalies, or addressing potential vulnerabilities, this software is essential in a comprehensive cybersecurity strategy. It is designed to work on various operating systems, including Unix and different Linux distributions, and can monitor different types of network traffic, including TCP and DNS.

The software typically includes features for log analysis, using tools like Kibana to analyze log files, and can detect a range of threats, from rootkits to SSL attacks. It also includes features for remediation of detected threats and usually integrates with a Security Operations Center (SOC) for coordinated response to security incidents.

Best Intrusion Detection Software Summary

Tools Price
ManageEngine Log360 Pricing upon request
SolarWinds Security Event Manager From $2,877/year
Ossec No details
FireEye Network Security Pricing upon request
Check Point IDS Pricing upon request
Zeek From $9/user/month (billed annually)
Intrusion Detection System (IDS) by McAfee Pricing upon request
Snort From $29.99/year (billed annually)
Cisco IDS Pricing upon request
Trend Micro Deep Discovery Pricing upon request
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Best Intrusion Detection Software Reviews

Best for user and entity behavior analytics

  • 30-day free trial + free edition
  • Pricing upon request
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Rating: 4.2/5

ManageEngine Log360 is a comprehensive security information and event management (SIEM) solution designed to enhance organizational security by integrating essential capabilities such as User and Entity Behavior Analytics (UEBA), Data Loss Prevention (DLP), and Cloud Access Security Broker (CASB).

Why I Picked ManageEngine Log360: Log360 aggregates data from various sources, including Intrusion Detection Systems (IDS), firewalls, and Active Directory, to provide immediate alerts on potential intrusions. The platform also leverages advanced analytics and machine learning to detect anomalous behavior, which is essential for identifying insider threats and sophisticated cyber-attacks that traditional methods might miss. The UEBA feature also uses machine learning to identify unusual patterns and behaviors, providing deeper insights into potential security threats.

Standout features & integrations:

The platform's integrated compliance management ensures that organizations meet regulatory requirements, providing real-time notifications of compliance violations. It also offers automated incident response workflows to simplify the process of addressing security incidents. Integrations include Microsoft Exchange, Amazon Web Services (AWS), Microsoft Entra ID, Microsoft Azure, and Active Directory.

Pros and cons

Pros:

  • Provides real-time monitoring and alerting
  • Effective for auditing all IT levels in an organization
  • Excellent visibility across systems

Cons:

  • Potential performance issues with large data volumes
  • Initial setup can be complex

Best for centralized event management

  • 30-day free trial
  • From $2,877/year
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Rating: 4.3/5

SolarWinds Security Event Manager (SEM) is designed to simplify the process of identifying and responding to security threats, failed audits, and operational issues. The tool stands out for its ability to centralize and interpret high volumes of log data from multiple sources.

Why I Picked SolarWinds Security Event Manager: During my evaluation, SolarWinds SEM's approach to centralizing events caught my attention. In my judgment, and after comparing it with several other platforms, I determined that it offers a differentiated and efficient solution for organizations that grapple with data sprawl. Its prowess in centralized event management makes it an invaluable tool for many security professionals.

Standout features & integrations:

The core strength of SolarWinds SEM lies in its log correlation technology, which quickly pinpoints potential issues by analyzing patterns. Additionally, its integrations with other SolarWinds products allow organizations to have a broader, more holistic view of their IT environments.

Pros and cons

Pros:

  • Supports numerous device and application logs
  • Streamlined event visualization tools
  • Efficient log correlation capabilities

Cons:

  • Some users report performance lags with high data volumes
  • Reporting capabilities may need enhancements
  • The learning curve for new users

Best for log management and analysis

As a powerful open-source host-based intrusion detection system, OSSEC specializes in dissecting logs to unveil security incidents. It stands as a guardian for your systems, analyzing logs with precision, making it indispensable for log management aficionados.

Why I Picked OSSEC: In determining the best tools for log analysis, OSSEC's proficiency became evident. Its capabilities in correlating and analyzing diverse log sources set it apart. For those who want to dive deep into log management and analysis, my judgment leans heavily toward OSSEC's meticulous approach.

Standout features & integrations:

OSSEC provides granular log analysis with alerting mechanisms for potential security breaches. Its active response feature automates reactions to specific threats, streamlining security workflows. OSSEC boasts integration capabilities with popular SIEM tools and visualization platforms, ensuring coherent data representation and actionable insights.

Pros and cons

Pros:

  • Integrates with popular visualization tools
  • Active response automates threat countermeasures
  • Granular log analysis for precise insights

Cons:

  • Lacks a user-friendly interface for non-tech individuals.
  • May require additional tools for comprehensive visualization
  • Configuration can be intricate

Best for advanced threat intelligence

  • Pricing upon request

FireEye Network Security serves as a comprehensive platform that focuses on advanced threat detection, prevention, and investigation. What differentiates this tool is its rich threat intelligence, offering insights that many other platforms might miss.

Why I Picked FireEye Network Security: After deliberating on various security platforms and their offerings, I gravitated towards FireEye due to its renowned advanced threat intelligence capabilities. I believe that in the evolving threat landscape, FireEye's approach to detecting and tackling sophisticated threats places it ahead of many competitors.

Standout features & integrations:

FireEye's strength is its MVX architecture which identifies and blocks complex threats in real-time. Furthermore, its integration capabilities with third-party solutions make it versatile in diverse IT environments.

Pros and cons

Pros:

  • Ability to sandbox suspicious content for analysis
  • Comprehensive threat analytics and reporting
  • Strong emphasis on zero-day and new threat vectors

Cons:

  • Requires careful configuration for optimal results
  • May generate false positives if not tuned properly
  • Can be resource-intensive

Best for multi-layered security strategies

  • Pricing upon request

Check Point IDS operates as an integral component of Check Point's comprehensive security suite, emphasizing a multi-layered approach to threat mitigation. This approach ensures that threats, regardless of their origin or nature, are tackled at various levels, providing robust protection.

Why I Picked Check Point IDS: My judgment was steered towards Check Point IDS after observing its holistic, multi-layered defense mechanism. After determining its performance and comparing it with other tools, I concluded that for organizations seeking a multi-tiered security strategy, Check Point IDS would be a commendable choice.

Standout features & integrations:

Check Point IDS excels in its threat prevention technologies, which encompass intrusion prevention, antivirus, and anti-bot modules. Additionally, its integration with Check Point's security gateway broadens the scope of protection.

Pros and cons

Pros:

  • Regularly updated with the latest threat intelligence
  • Part of the broader Check Point security ecosystem
  • Comprehensive multi-layered threat prevention

Cons:

  • Licensing can be complex with various modules and features.
  • The user interface might be overwhelming for newcomers
  • Requires dedicated hardware for optimal performance

Best for network traffic analysis

  • From $9/user/month (billed annually)

Zeek, formerly known as Bro, has established itself as a heavyweight in the realm of network security monitoring. It delves deep into network traffic, extracting valuable data that aids in understanding and securing your environment. For those prioritizing comprehensive traffic analysis, Zeek is a natural choice.

Why I Picked Zeek: I selected Zeek after an intensive review of network analysis tools. Its unique ability to transform raw network traffic into high-fidelity logs caught my attention. I believe that for those who prioritize detailed network traffic insights, Zeek is unmatched in its depth and clarity.

Standout features & integrations:

Zeek excels in its script-based approach, enabling customizable analysis and logging of network traffic. This offers the flexibility to adapt to diverse and evolving threat landscapes. Integration-wise, Zeek complements a variety of SIEM systems and threat intelligence platforms, reinforcing its utility in complex security architectures.

Pros and cons

Pros:

  • Robust compatibility with multiple SIEM systems
  • High-fidelity logs provide detailed insights
  • Script-based approach for tailored traffic analysis

Cons:

  • Lacks out-of-the-box dashboards for visual analysis
  • Resource-intensive for larger network environments
  • Scripting may pose challenges for beginners

Best for integrated threat intelligence

  • Pricing upon request

McAfee's IDS rises above by not just detecting intrusions but by providing integrated threat intelligence to inform timely countermeasures. This integration results in an enriched understanding of threats, placing it high on the list for businesses prioritizing intelligence-driven defense.

Why I Picked IDS by McAfee: Upon comparing various tools, the intelligence fusion within McAfee's IDS caught my attention. This integration, a differentiator in its league, led me to judge it superior for those keen on coupling detection with actionable intelligence. If integrated threat insights are the goal, IDS by McAfee aligns perfectly with such demands.

Standout features & integrations:

McAfee's IDS takes pride in its adaptive threat detection mechanisms, refining its processes with real-time intelligence feeds. Its cloud-based analytics further elevate its detection accuracy. For integrations, it pairs effectively with other McAfee security products and a range of third-party SIEM systems.

Pros and cons

Pros:

  • Wide-ranging compatibility with SIEM solutions
  • Cloud-enhanced analytics for precise detection
  • Real-time threat intelligence integration

Cons:

  • Licensing complexities for expansive deployments.
  • Reliance on the cloud may not suit all organizations
  • Some learning curve for full feature utilization

Best for open-source enthusiasts

  • Free demo available
  • From $29.99/year (billed annually)

Snort stands as one of the pioneers in intrusion detection, with its robust and open-source nature allowing for in-depth network protection. Catering to those who value transparency and customization, Snort's open-source model offers users a direct line of sight into its inner workings, making it a prime choice for enthusiasts.

Why I Picked Snort: I chose Snort because, in my journey of comparing various intrusion detection tools, its open-source nature stood out. This tool has garnered respect and loyalty in the cybersecurity community for its adaptability and transparency. Given its commitment to providing a platform that enthusiasts can both trust and tinker with, I determined that Snort is best for those who deeply value open-source paradigms.

Standout features & integrations:

Snort's rule-driven language allows users to fine-tune detection protocols, while its capabilities in real-time traffic analysis ensure timely insights into network activity. Beyond its core features, Snort integrates well with other security platforms and databases, enhancing its usability and scope within larger cybersecurity frameworks.

Pros and cons

Pros:

  • Real-time traffic analysis captures anomalies swiftly
  • Rule-driven language for tailored detection
  • The open-source nature ensures transparency

Cons:

  • Lacks a graphical user interface out of the box.
  • Regular updates might demand frequent configuration tweaks
  • Initial setup can be complex for novices

Best for large enterprise environments

  • Pricing upon request

Cisco IDS, stemming from a legacy of robust security solutions, specializes in safeguarding expansive enterprise networks. Its capabilities to handle high traffic volumes without compromise make it an optimal choice for large-scale operations.

Why I Picked Cisco IDS: When I embarked on selecting a tool adept for extensive enterprise frameworks, Cisco IDS's reputation and performance benchmarks became undeniable. Its prowess in managing intricate and vast network architectures made it stand out in my assessment. For businesses operating on a grand scale seeking unwavering intrusion detection, Cisco IDS is, in my opinion, a compelling choice.

Standout features & integrations:

Cisco IDS boasts of its advanced threat detection algorithms, enabling swift identification of suspicious activities. It incorporates threat intelligence updates to stay ahead of evolving risks. Integration capabilities span across Cisco's suite of security products, fostering a holistic security approach.

Pros and cons

Pros:

  • Robust integration within Cisco's security ecosystem
  • Continual threat intelligence updates
  • Tailored for handling high network traffic volumes

Cons:

  • Requires dedicated personnel for optimal management
  • Pricier than some alternative solutions
  • Initial setup can be complex for newcomers

Best for targeted attack identification

  • Pricing upon request

Trend Micro Deep Discovery is a dedicated solution designed to detect, analyze, and respond to today's stealthy ransomware, its variants, and targeted attacks. The tool's specialization in uncovering targeted and sophisticated threats sets it apart in the security landscape.

Why I Picked Trend Micro Deep Discovery: My decision to highlight Trend Micro Deep Discovery was influenced by its focused approach to targeted threat detection. After comparing and assessing several solutions, I was convinced that its ability to identify concealed attacks gives organizations a significant upper hand.

Standout features & integrations:

Deep Discovery excels in its specialized detection engines and custom sandbox analysis. Its integrations with other Trend Micro solutions provide layered security and enhanced visibility across the digital environment.

Pros and cons

Pros:

  • Supports a wide range of virtual and physical network appliances
  • Offers in-depth threat insights and intelligence
  • Specialized in detecting hidden threats

Cons:

  • May require additional resources for larger networks.
  • Licensing model may be complicated for some users
  • Can be complex to set up initially

Other Notable Intrusion Detection Software

Below is a list of additional intrusion detection software that I shortlisted, but did not make it to the top 10. Definitely worth checking them out.

  1. RSA NetWitness

    For real-time incident response

  2. Tripwire

    For system integrity monitoring

  3. Juniper IDP

    For versatility in threat detection

  4. Fidelis Network

    Good for deep session inspection

  5. Flowmon

    Good for network behavior analysis

  6. BluVector

    Good for machine learning threat detection

  7. Kismet

    Good for wireless network detection

  8. Hillstone Network-Based IDS

    Good for layered threat prevention

  9. WatchGuard Network Security

    Good for modular security solutions

  10. Darktrace

    Good for AI-driven threat detection

  11. Fortinet FortiGate

    Good for broad security integrations

  12. Vectra Cognito

    Good for automating threat detection

  13. LogRhythm

    Good for comprehensive log management

  14. Ntopng

    Good for network traffic insights

  15. Nagios Core

    Good for infrastructure monitoring

Selection Criteria For Choosing Intrusion Detection Software

I've evaluated dozens of network security and intrusion detection system (IDS) tools over the years. While many of these tools possess great features, it's crucial to understand what's truly important based on specific needs and the unique challenges that come with network security. For this list, I particularly sought tools with high detection accuracy, scalability, and easy-to-use interfaces.

Core Functionality

  • Threat Detection: Accurate identification of both known and zero-day threats in real-time.
  • Intrusion Prevention: Not just detection, but the ability to prevent identified threats.
  • Data Analysis: Analyze network traffic for abnormal patterns, which could indicate a potential threat.
  • Alerting and Reporting: Real-time alerts for threats and comprehensive reporting for analysis.

Key Features

  • Machine Learning and AI Capabilities: Enables the tool to evolve with emerging threats and recognize patterns in the data.
  • Integration with other Security Tools: It's important for IDS tools to work cohesively with other security solutions in an organization's ecosystem.
  • Customizable Alert Settings: Adjust sensitivity based on the network environment to minimize false positives.
  • Encrypted Traffic Inspection: Analyze encrypted data packets without compromising security.
  • Threat Intelligence Feed: Updated information about emerging threats, providing the tool with current data.

Usability

  • Intuitive Dashboard: The main console should provide a clear overview of the network's security status, including threats detected, traffic patterns, and system health.
  • Drag-and-drop Rule Configuration: Rather than complex coding, a user-friendly interface for rule setting helps in quicker configuration and deployment.
  • Role-Based Access Control: Essential for larger teams, this allows specific permissions to be set for different users, ensuring that only authorized personnel can make changes or access sensitive information.
  • Learning Resources and Support: Given the complexity of some of these tools, having accessible training resources, documentation, and responsive customer support is paramount.

Most Common Questions Regarding Intrusion Detection Software (FAQs)

What are the benefits of using intrusion detection software?

Intrusion detection software offers a wide range of benefits, including:

  • Enhanced Security: These tools constantly monitor network traffic for any signs of malicious activity, ensuring that potential threats are identified swiftly.
  • Real-time Alerting: Immediate alerts help organizations act quickly, minimizing potential damage.
  • Compliance: Many industries have regulations requiring organizations to monitor and protect their networks. IDS tools can help meet these regulatory requirements.
  • Detailed Reporting: Organizations can analyze and learn from security incidents, refining their security posture over time.
  • Integration with Other Systems: Most IDS solutions can integrate with other security tools, creating a comprehensive security environment.

How much do intrusion detection software tools typically cost?

The pricing for intrusion detection software can vary significantly based on features, scalability, and brand reputation. Most solutions operate on a subscription model, charging monthly or annually.

What are the common pricing models for these tools?

There are several pricing models:

  • Per User/Device: Pricing is based on the number of users or devices connected to the network.
  • Data Volume: Some tools charge based on the amount of data they analyze.
  • Flat Rate: A standard fee that covers all features and capabilities.
  • Freemium: A basic version is available for free, with more advanced features available at a cost.

What's the typical range of pricing for these tools?

Prices can range from as low as $10/user/month for smaller solutions to upwards of $1,000/month for enterprise-grade systems. It’s essential to consider both the immediate needs and the scalability when determining which solution offers the best value.

Which are some of the cheapest software options available?

Kismet and Nagios Core are among the more affordable options in the intrusion detection space, especially suitable for small to medium-sized businesses.

Is there any high-end, premium-priced software?

Yes, tools like Darktrace and FireEye Network Security are on the higher end of the spectrum, catering primarily to larger enterprises with complex requirements.

Are there any free IDS software options?

Indeed, there are free options available, such as Kismet and Nagios Core. However, while these tools offer essential IDS features, they might lack some of the more advanced functionalities found in paid versions.

Is it worth investing in a premium tool?

For organizations with sensitive data or those in highly regulated industries, a premium IDS tool might be a worthy investment. These tools often come with superior detection capabilities, better integration options, and top-notch support, which can be crucial in a high-stakes security scenario.

Summary

Choosing the right network intrusion detection system (NIDS) is paramount for organizations to effectively monitor and safeguard their network infrastructure. Throughout this guide, we've highlighted the significance of such tools, detailing their core functionalities, key features, usability, and varying pricing models. As cyber threats continue to evolve, having a robust intrusion detection system becomes an indispensable part of an organization's defense strategy.

Key Takeaways:

  1. Prioritize Core Functionality: Always ensure that the software you choose aligns with your primary security objectives and can effectively monitor and detect threats in real-time.
  2. Consider Usability and Support: Beyond features, the tool's design, ease of onboarding, and the quality of customer support can significantly impact its efficacy. An intuitive interface and prompt support can enhance the software's overall effectiveness.
  3. Understand Pricing Models: With a wide range of pricing models available, from per user/device to data volume and flat rates, it's essential to select a model that offers value while fitting into your budget.

What Do You Think?

While I've endeavored to provide a comprehensive list of top-notch intrusion detection software, the world of cybersecurity is vast and ever-evolving. If there's a tool you believe should be on this list or if you've had positive experiences with a product not mentioned, I'd love to hear from you. Your insights not only benefit me but also help our reader community make more informed decisions. Please share your recommendations and together, let's create a more secure digital landscape.

Paulo Gardini Miguel
By Paulo Gardini Miguel

Paulo is the Director of Technology at the rapidly growing media tech company BWZ. Prior to that, he worked as a Software Engineering Manager and then Head Of Technology at Navegg, Latin America’s largest data marketplace, and as Full Stack Engineer at MapLink, which provides geolocation APIs as a service. Paulo draws insight from years of experience serving as an infrastructure architect, team leader, and product developer in rapidly scaling web environments. He’s driven to share his expertise with other technology leaders to help them build great teams, improve performance, optimize resources, and create foundations for scalability.