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Abstract

Continuous monitoring is at the heart of security operations. After threat intelligence is gathered and vulnerabilities identified and managed, the entity must detect unwanted activity in the network. In the smallest of organizations, this is no easy task. Data generated by a single laptop running Windows 10 is quite large. Dozens of log entries are generated on startup alone. A Windows endpoint running Microsoft's Sysmon tool generates tens of thousands of logs in a matter of hours. Take into account the network traffic generated by a simple HTTP connection as well as normal broadcast traffic generated internally and you immediately begin to understand how complicated monitoring can get.

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Notes

  1. 1.

    https://docs.microsoft.com/en-us/previous-versions/windows/desktop/ics/windows-firewall-profiles

  2. 2.

    https://docs.microsoft.com/en-us/sysinternals/downloads/sysmon

  3. 3.

    https://github.com/SwiftOnSecurity/sysmon-config

  4. 4.

    https://docs.zeek.org/en/stable/script-reference/log-files.html?highlight=log%20files

  5. 5.

    http://malware-traffic-analysis.net/2019/05/01/index2.html

  6. 6.

    https://unit42.paloaltonetworks.com/about-unit-42/

  7. 7.

    https://unit42.paloaltonetworks.com/unit42-malware-team-malspam-pushing-emotet-trickbot/

  8. 8.

    https://docs.zeek.org/en/stable/scripts/base/protocols/conn/main.bro.html

  9. 9.

    www.blackhillsinfosec.com/

  10. 10.

    www.snort.org/#get-started

  11. 11.

    https://digital-forensics.sans.org/community/downloads

  12. 12.

    http://malware-traffic-analysis.net/2019/05/01/index2.html

  13. 13.

    Miller, David R., Harris, Shon, Harper, Allen A., VanDyke, Stephen, Blask, Chris “Security Information and Event Management (SIEM)” McGraw Hill, 2011

  14. 14.

    https://github.com/MarkBaggett/freq

  15. 15.

    www.splunk.com/en_us/blog/security/finding-new-evil-detecting-new-domains-with-splunk.html

  16. 16.

    www.elastic.co/

  17. 17.

    www.splunk.com/blog/2018/03/20/hunting-your-dns-dragons.html

  18. 18.

    www.splunk.com/blog/2018/09/12/spotting-the-signs-of-lateral-movement.html

  19. 19.

    https://molo.ch/

  20. 20.

    https://github.com/salesforce/ja3

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© 2020 Eric C. Thompson

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Thompson, E.C. (2020). Continuous Monitoring. In: Designing a HIPAA-Compliant Security Operations Center. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4842-5608-4_5

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