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: 5 minutes

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: 1

Added (Elastic Stack release): 7.12.0

Rule authors: Elastic

Rule license: Elastic License v2

Rule queryedit

library where : ( "wlbsctrl.dll", "wbemcomn.dll",
"WptsExtensions.dll", "Tsmsisrv.dll", "TSVIPSrv.dll",
"Msfte.dll", "wow64log.dll", "WindowsCoreDeviceInfo.dll",
"Ualapi.dll", "wlanhlp.dll", "phoneinfo.dll", "EdgeGdi.dll",
"cdpsgshims.dll", "windowsperformancerecordercontrol.dll",
"diagtrack_win.dll" ) and not (dll.code_signature.subject_name :
"Microsoft Windows" and dll.code_signature.status : "trusted")

Threat mappingedit