Expired or Revoked Driver Loaded

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Identifies an attempt to load a revoked or expired driver. Adversaries may bring outdated drivers with vulnerabilities to gain code execution in kernel mode or abuse revoked certificates to sign their drivers.

Rule type: eql

Rule indices:

  • logs-endpoint.events.*

Severity: low

Risk score: 21

Runs every: 5m

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

Maximum alerts per execution: 100

References:

Tags:

  • Domain: Endpoint
  • OS: Windows
  • Use Case: Threat Detection
  • Tactic: Privilege Escalation
  • Rule Type: BBR

Version: 1

Rule authors:

  • Elastic

Rule license: Elastic License v2

Rule query

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driver where host.os.type == "windows" and process.pid == 4 and
  dll.code_signature.status : ("errorExpired", "errorRevoked")

Framework: MITRE ATT&CKTM