List of the Top 8 Free Threat Hunting Tools in 2025

Empower your existing team to attain enterprise-level security with confidence. Introducing a comprehensive SIEM solution that provides endpoint visibility, around-the-clock monitoring, and automated response capabilities. By simplifying complexity, enhancing visibility, and accelerating response times, we make security management more effective. We handle the intricate details so you can focus on your everyday tasks. With Blumira's ready-to-use detections, filtered alerts, and response playbooks, IT teams can derive substantial security benefits. Rapid Deployment and Instant Outcomes: Seamlessly integrates with your existing technology stack, achieving full deployment within hours and requiring no warm-up time. Unlimited Access: Enjoy predictable pricing with no limits on data logging and complete lifecycle detection. Effortless Compliance: Comes with one year of data retention, pre-configured reports, and 24/7 automated monitoring to streamline your compliance efforts. Exceptional Support with 99.7% CSAT: Our Solution Architects are here to assist with product support, while our Incident Detection and Response Team is dedicated to new detections alongside our 24/7 SecOps Support. Don’t just manage security—enhance it with Blumira.

Silent Push uncovers adversary infrastructure, campaigns, and security vulnerabilities by utilizing the most up-to-date, precise, and comprehensive Threat Intelligence dataset available. This empowers defenders to proactively thwart threats before they escalate into significant issues, thereby enhancing their security operations throughout the entire attack lifecycle while also simplifying operational complexities. The Silent Push platform reveals Indicators of Future Attack (IOFA) through the application of distinctive behavioral fingerprints to track attacker activities within our dataset. This enables security teams to detect potential upcoming assaults, moving beyond the outdated Indicators of Compromise (IOCs) provided by traditional threat intelligence sources. By gaining insights into emerging threats prior to their execution, organizations can proactively address issues within their infrastructure and receive timely, customized threat intelligence through IOFA, allowing them to maintain a strategic advantage over sophisticated attackers. Furthermore, this proactive approach not only bolsters defense mechanisms but also fosters a deeper understanding of the threat landscape, ensuring that organizations remain resilient against evolving cyber threats.

DNIF provides an exceptionally beneficial solution by seamlessly combining SIEM, UEBA, and SOAR technologies into one comprehensive platform, all while keeping the total cost of ownership remarkably low. Its hyper-scalable data lake is designed for efficiently ingesting and storing extensive volumes of data, allowing users to detect suspicious behavior through advanced statistical analysis and enabling them to take proactive steps to avert potential threats. This platform facilitates the orchestration of processes, personnel, and technology from a centralized security dashboard, enhancing operational efficiency. Moreover, the SIEM is pre-loaded with essential dashboards, reports, and response workflows, delivering thorough support for activities such as threat hunting, compliance checks, user behavior monitoring, and identifying network traffic anomalies. The addition of a detailed coverage map that aligns with the MITRE ATT&CK and CAPEC frameworks significantly boosts its overall effectiveness. You can expand your logging capabilities without the worry of going over budget—potentially increasing your capacity two or even threefold within the same financial constraints. Thanks to HYPERCLOUD, the fear of overlooking critical information has become a thing of the past, as you can now log every relevant detail and ensure that nothing slips through the cracks, thereby strengthening your security posture. This comprehensive approach ensures that your organization's defenses are not only robust but also adaptable to evolving threats.

Introducing the leading API security platform that understands the context of the industry. Traceable detects all your APIs, assesses their risk levels, prevents API-related attacks that can result in data breaches, and offers analytics for both threat detection and investigative purposes. By utilizing our platform, you can efficiently identify, oversee, and protect every aspect of your APIs, while also enabling rapid deployment and seamless scalability to adapt to your organization's evolving requirements. This comprehensive approach ensures that your API security remains robust in the face of emerging threats.

Examine potential phishing domains that attackers might use to target your organization. Assess the challenges users may encounter while accurately entering your domain name. Investigate fraudulent domains that malicious actors could exploit, aiding in the discovery of typosquatting, phishing attempts, scams, and brand impersonation cases. This analysis is crucial for improving targeted threat intelligence. The technique known as DNS fuzzing can automate the identification of harmful domains by generating numerous variations from a specific domain name and verifying their activity status. Additionally, this methodology can create fuzzy hashes of web pages, which helps in detecting ongoing phishing activities, cases of brand impersonation, and other security threats, ultimately offering a more robust security framework. By employing such tools, organizations can substantially enhance their defenses against the continuously shifting landscape of cyber threats. In turn, this proactive approach can help safeguard sensitive information and maintain user trust.

Security Onion is a powerful open-source solution designed for intrusion detection, network security monitoring, and log management. It provides a comprehensive set of tools that allow cybersecurity professionals to detect and mitigate potential threats across an organization's network. By combining technologies like Suricata, Zeek, and the Elastic Stack, Security Onion facilitates the gathering, assessment, and real-time visualization of security-related data. Its intuitive interface makes it easy to manage and analyze network traffic, security alerts, and system logs effectively. Moreover, it includes integrated resources for threat hunting, alert triage, and forensic investigations, enabling users to quickly identify potential security breaches. Designed for scalability, Security Onion is suitable for a wide variety of settings, from small businesses to large corporations. Users also benefit from ongoing updates and strong community support, which help them to continually improve their security measures and adapt to new and emerging threats. Overall, Security Onion represents an essential tool for those looking to bolster their network defenses.

Security teams have the capability to utilize the Infocyte Managed Response Platform to identify and address cyber threats and vulnerabilities present in their networks. This versatile platform supports a range of environments, including physical, virtual, and serverless assets. Our Managed Detection and Response (MDR) platform provides features such as asset and application discovery, automated threat hunting, and on-demand incident response. By implementing these proactive cybersecurity strategies, organizations can significantly decrease the time attackers remain undetected, mitigate overall risk, ensure compliance with regulations, and enhance the efficiency of their security operations. Furthermore, these tools empower security teams to stay one step ahead of potential threats.

HTCD is a cloud security SaaS powered by AI that aims to markedly improve your security framework. With HTCD, you gain centralized oversight through more than 500 pre-configured policies that encompass cloud security, infrastructure, network safety, SaaS applications, and regulatory compliance. You maintain complete authority over your data while enjoying smooth integration and comprehensive protection measures. Detect - Code-Free Detection Engineering Say goodbye to the complexities of coding. HTCD allows you to formulate detections using straightforward language instead of programming code. Swiftly pinpoint and address possible threats with queries such as: "Which CVEs are vulnerable in my Azure setup?" and "What are my S3 expenses for the last fortnight?" Hunt - Active Internal Threat Investigation Easily monitor actions across all your Cloud environments (including Azure and AWS) and SaaS platforms (like M365, GitHub, HubSpot, and Slack). Equip your security teams and analysts with the ability to hunt for threats with just one click, leading to speedy detection and remediation. Respond - Focus on What Matters Most Obtain a risk-oriented view of security misconfigurations and vulnerabilities, with AI prioritizing the issues that matter most to you. HTCD enables you to tackle the most pressing challenges, significantly shortening response times and minimizing operational risk, ensuring that your organization's security is always a top priority.