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Elastic Docs ›Elastic Security Solution [7.9] ›Detections and Alerts (beta) ›Prebuilt rule reference

Delete Volume USN Journal with Fsutil

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Delete Volume USN Journal with Fsutil

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Identifies use of the fsutil.exe to delete the USNJRNL volume. This technique is used by attackers to eliminate evidence of files created during post-exploitation activities.

Rule type: query

Rule indices:

  • winlogbeat-*
  • logs-endpoint.events.*

Severity: low

Risk score: 21

Runs every: 5 minutes

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

Tags:

  • Elastic
  • Windows

Version: 4 (version history)

Added (Elastic Stack release): 7.6.0

Last modified (Elastic Stack release): 7.9.1

Rule authors: Elastic

Rule license: Elastic License

Rule query

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event.category:process and event.type:(start or process_started) and
process.name:fsutil.exe and process.args:(deletejournal and usn)

Threat mapping

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Framework: MITRE ATT&CKTM

Rule version history

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Version 4 (7.9.1 release)
  • Formatting only
Version 3 (7.9.0 release)

  • Updated query, changed from:

    event.action:"Process Create (rule: ProcessCreate)" and
process.name:fsutil.exe and process.args:(deletejournal and usn)
Version 2 (7.7.0 release)

  • Updated query, changed from:

    event.action:"Process Create (rule: ProcessCreate)" and
process.name:"fsutil.exe" and process.args:("usn" and "deletejournal")
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