IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

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Enumeration Command Spawned via WMIPrvSE

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Enumeration Command Spawned via WMIPrvSE

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Identifies native Windows host and network enumeration commands spawned by the Windows Management Instrumentation Provider Service (WMIPrvSE).

Rule type: eql

Rule indices:

winlogbeat-*
logs-endpoint.events.process-*
logs-windows.*
endgame-*
logs-system.security*

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:

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

Version: 112

Rule authors:

Elastic

Rule license: Elastic License v2

Setup

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Setup

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 version 8.2. Hence for this rule to work effectively, users will need to add a custom ingest pipeline to populate event.ingested to @timestamp. For more details on adding a custom ingest pipeline refer - https://www.elastic.co/guide/en/fleet/current/data-streams-pipeline-tutorial.html

Rule query

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process where host.os.type == "windows" and event.type == "start" and process.command_line != null and
  process.name:
  (
    "arp.exe",
    "dsquery.exe",
    "dsget.exe",
    "gpresult.exe",
    "hostname.exe",
    "ipconfig.exe",
    "nbtstat.exe",
    "net.exe",
    "net1.exe",
    "netsh.exe",
    "netstat.exe",
    "nltest.exe",
    "ping.exe",
    "qprocess.exe",
    "quser.exe",
    "qwinsta.exe",
    "reg.exe",
    "sc.exe",
    "systeminfo.exe",
    "tasklist.exe",
    "tracert.exe",
    "whoami.exe"
  ) and
  process.parent.name:"wmiprvse.exe" and
  not (
    process.name : "sc.exe" and process.args : "RemoteRegistry" and process.args : "start=" and
    process.args : ("demand", "disabled")
  ) and
  not process.args : "tenable_mw_scan"

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Execution
- ID: TA0002
- Reference URL: https://attack.mitre.org/tactics/TA0002/
Technique:
- Name: Windows Management Instrumentation
- ID: T1047
- Reference URL: https://attack.mitre.org/techniques/T1047/
Tactic:
- Name: Discovery
- ID: TA0007
- Reference URL: https://attack.mitre.org/tactics/TA0007/
Technique:
- Name: System Network Configuration Discovery
- ID: T1016
- Reference URL: https://attack.mitre.org/techniques/T1016/
Sub-technique:
- Name: Internet Connection Discovery
- ID: T1016.001
- Reference URL: https://attack.mitre.org/techniques/T1016/001/
Technique:
- Name: Remote System Discovery
- ID: T1018
- Reference URL: https://attack.mitre.org/techniques/T1018/
Technique:
- Name: Process Discovery
- ID: T1057
- Reference URL: https://attack.mitre.org/techniques/T1057/
Technique:
- Name: Account Discovery
- ID: T1087
- Reference URL: https://attack.mitre.org/techniques/T1087/
Technique:
- Name: Software Discovery
- ID: T1518
- Reference URL: https://attack.mitre.org/techniques/T1518/

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