Elastic low stable eql

Enumeration of Administrator Accounts

Identifies instances of lower privilege accounts enumerating Administrator accounts or groups using built-in Windows tools.

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Detection Logic

process where host.os.type == "windows" and event.type == "start" and
(
  (
    (
      (process.name : "net.exe" or ?process.pe.original_file_name == "net.exe") or
      ((process.name : "net1.exe" or ?process.pe.original_file_name == "net1.exe") and not process.parent.name : "net.exe")
    ) and
    process.args : ("group", "user", "localgroup") and
    process.args : ("*admin*", "Domain Admins", "Remote Desktop Users", "Enterprise Admins", "Organization Management")
    and not process.args : ("/add", "/delete")
  ) or
  (
    (process.name : "wmic.exe" or ?process.pe.original_file_name == "wmic.exe") and
    process.args : ("group", "useraccount")
  )
) and not user.id : ("S-1-5-18", "S-1-5-19", "S-1-5-20")

Field Validations

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