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The SIEM app is now a part of the Elastic Security solution. Click here to view SIEM documentation for previous releases.
« Mknod Process Activity Modification or Removal of an Okta Application Sign-On Policy »
Elastic Docs ›Elastic Security Solution [7.9] ›Detections and Alerts (beta) ›Prebuilt rule reference

Modification of Boot Configuration

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Modification of Boot Configuration

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Identifies use of bcdedit.exe to delete boot configuration data. Malware and attackers sometimes use this tactic as a destructive technique.

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: 3 (version history)

Added (Elastic Stack release): 7.7.0

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:bcdedit.exe and process.args:(/set and (bootstatuspolicy
and ignoreallfailures or no and recoveryenabled))

Threat mapping

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Framework: MITRE ATT&CKTM

Rule version history

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Version 3 (7.9.1 release)
  • Formatting only
Version 2 (7.9.0 release)

  • Updated query, changed from:

    event.action:"Process Create (rule: ProcessCreate)" and
process.name:bcdedit.exe and process.args:(/set and (bootstatuspolicy
and ignoreallfailures or no and recoveryenabled))
« Mknod Process Activity Modification or Removal of an Okta Application Sign-On Policy »
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