Command Shell Activity Started via RunDLL32edit

Identifies command shell activity started via RunDLL32, which is commonly abused by attackers to host malicious code.

Rule type: eql

Rule indices:

  • winlogbeat-*
  • logs-windows.*
  • endgame-*

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: None


  • Domain: Endpoint
  • OS: Windows
  • Use Case: Threat Detection
  • Tactic: Execution
  • Tactic: Credential Access
  • Data Source: Elastic Endgame
  • Data Source: Elastic Defend

Version: 106

Rule authors:

  • Elastic

Rule license: Elastic License v2

Investigation guideedit

Rule queryedit

process where host.os.type == "windows" and event.type == "start" and : ("cmd.exe", "powershell.exe") and : "rundll32.exe" and process.parent.command_line != null and
  /* common FPs can be added here */
  not process.parent.args : ("C:\\Windows\\System32\\SHELL32.dll,RunAsNewUser_RunDLL",