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Untrusted Driver Loaded

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Untrusted Driver Loaded

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Identifies attempt to load an untrusted driver. Adversaries may modify code signing policies to enable execution of unsigned or self-signed code.

Rule type: eql

Rule indices:

logs-endpoint.events.*

Severity: high

Risk score: 73

Runs every: 5m

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

Maximum alerts per execution: 100

References:

Tags:

Elastic
Host
macOS
Threat Detection
Defense Evasion

Version: 1

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

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library where process.pid == 4 and
  dll.code_signature.trusted != true and
  not dll.code_signature.status : ("errorExpired", "errorRevoked")

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
Technique:
- Name: Subvert Trust Controls
- ID: T1553
- Reference URL: https://attack.mitre.org/techniques/T1553/
Sub-technique:
- Name: Code Signing Policy Modification
- ID: T1553.006
- Reference URL: https://attack.mitre.org/techniques/T1553/006/

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