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Elastic Docs ›Elastic Security Solution [7.17] ›Downloadable rule update v0.16.2

Enumeration of Administrator Accounts

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Enumeration of Administrator Accounts

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

Rule type: eql

Rule indices:

  • logs-endpoint.events.*
  • winlogbeat-*
  • logs-windows.*

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

Tags:

  • Elastic
  • Host
  • Windows
  • Threat Detection
  • Discovery

Version: 5

Rule authors:

  • Elastic

Rule license: Elastic License v2

Investigation guide

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## Config

If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define `event.ingested` and default fallback for EQL rules was not added until 8.2, so you will need to add a custom pipeline to populate `event.ingested` to @timestamp for this rule to work.

Rule query

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process where event.type in ("start", "process_started") 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")

   or

  ((process.name : "wmic.exe" or process.pe.original_file_name == "wmic.exe") and
     process.args : ("group", "useraccount"))

Framework: MITRE ATT&CKTM

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