Suspicious DLL Loaded for Persistence or Privilege Escalationedit

Identifies the loading of a non Microsoft signed DLL that is missing on a default Windows install (phantom DLL) or one that can be loaded from a different location by a native Windows process. This may be abused to persist or elevate privileges via privileged file write vulnerabilities.

Rule type: eql

Rule indices:

  • winlogbeat-*
  • logs-windows.*

Severity: high

Risk score: 73

Runs every: None

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

Maximum alerts per execution: 100



  • Elastic
  • Host
  • Windows
  • Threat Detection
  • Persistence
  • Privilege Escalation

version: 2

Rule authors:

  • Elastic

Rule license: Elastic License v2

Rule queryedit

library where :
  ) and
not (dll.code_signature.subject_name : ("Microsoft Windows", "Microsoft Corporation") and dll.code_signature.status : "trusted")