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Elastic Docs ›Elastic Security Solution [8.1] ›Detections and alerts ›Prebuilt rule reference

PowerShell Script Block Logging Disabled

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PowerShell Script Block Logging Disabled

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Identifies attempts to disable PowerShell Script Block Logging via registry modification. Attackers may disable this logging to conceal their activities in the host and evade detection.

Rule type: eql

Rule indices:

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

Severity: medium

Risk score: 47

Runs every: 5 minutes

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

Maximum alerts per execution: 100

References:

Tags:

  • Elastic
  • Host
  • Windows
  • Threat Detection
  • Defense Evasion

Version: 1

Added (Elastic Stack release): 8.1.0

Rule authors: Elastic

Rule license: Elastic License v2

Rule query

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registry where event.type == "change" and registry.path :
"HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\PowerShell\\ScriptBlock
Logging\\EnableScriptBlockLogging" and registry.data.strings :
("0", "0x00000000")

Threat mapping

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Framework: MITRE ATT&CKTM

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