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Essential Free Threat Intelligence Resources

Sep 7, 2024

Threat Intelligence Resources

Introduction

  • Threat intelligence: Data collected to help organizations understand, detect, and respond to threats.
  • Value of community in cybersecurity: Willingness to share information about threats and indicators of compromise (IOCs).
  • Focus on free resources for threat intelligence.

Resources Shared

  1. ThreatView.io

    • Provides daily reports of IOCs at 11 PM UTC.
    • Includes high confidence feeds to minimize false positives.
    • Offers command and control (C2) URL/domain block lists and file hashes.
    • Important to validate indicators and understand context before reacting to alerts.
  2. ThreatMiner

    • Aggregates information about IOCs such as IPs, domains, and hashes.
    • Allows searching for additional information related to IOCs.
    • Key feature: Aggregates data from multiple threat intel sites into one view.
  3. Pulse Dive

    • Free tool with a premium option for organizations.
    • Features active scanning to gather additional IOC information (e.g., HTTP headers, DNS, WHOIS lookup).
    • Caution advised when using active scans, especially during an investigation to avoid alerting threat actors.
    • Allows exporting indicators in CSV format for usage in Security Information and Event Management (SIEM) systems like Splunk.
  4. OTX Alien Vault

    • Search capability for IOCs; provides open port information and certificate issuers.
    • Allows creation of "pulses" to share IOCs extracted from various sources.
    • Bonus feature: Endpoint scanning for IOCs to identify compromised endpoints.

Key Considerations

  • Importance of up-to-date IOCs: Threat actors can easily change IOCs like IPs and file hashes.
  • Pyramid of Pain: A model explaining the ease/difficulty of changing different types of IOCs; higher tactics and techniques are harder to change.
  • Additional reading on the Pyramid of Pain provided in the description.

Conclusion

  • Numerous free threat intelligence platforms available.
  • Encouragement to perform due diligence and validate findings with multiple sources.
  • Call to action: Like and subscribe for more informative content.