Registry Enumeration via WMI Stdregprov — Sigma Rule

Rule metadata and linked tags

Author: Swachchhanda Shrawan Poudel (Nextron Systems). Source status: experimental; severity: medium. Source dates: 2025-07-30 / 2026-06-19.

{
  "category": "process_creation",
  "product": "windows"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 8c0d679efb7eca9d1c5c80f7a9ead122560916eaba969a18320dd10509838690

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Registry Enumeration via WMI Stdregprov
id: a0e417e2-2fa1-40da-b6d2-e094cd5e1191
related:
    - id: c453ab7a-1f5c-4716-a3b4-dea8135fb43a # Registry Manipulation via WMI Stdregprov
      type: similar
status: experimental
description: |
    Detects the usage of wmic.exe to enumerate or read Windows registry via the WMI StdRegProv class read methods (EnumKey, EnumValues, GetStringValue, etc.).
    While registry reads are common, attackers may use this technique to perform reconnaissance and discover sensitive configuration values, credentials, or installed software.
    The use of WMI as an alternative to standard tools like reg.exe can indicate an attempt to evade detection focused on traditional registry query commands.
references:
    - https://trustedsec.com/blog/command-line-underdog-wmic-in-action
    - https://trustedsec.com/blog/wmi-for-script-kiddies
    - https://learn.microsoft.com/en-us/previous-versions/windows/desktop/regprov/stdregprov
author: Swachchhanda Shrawan Poudel (Nextron Systems)
date: 2025-07-30
modified: 2026-06-19
tags:
    - attack.execution
    - attack.t1047
    - attack.discovery
    - attack.t1012
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:   # Example command simulated:  WMIC  /NameSpace:\\root\default Class StdRegProv Call EnumKey hDefKey=&H80000002 sSubKeyName="Software\Microsoft\Windows\CurrentVersion\Uninstall"
        - Image|endswith: '\wmic.exe'
        - OriginalFileName: 'wmic.exe'
    selection_cli:
        CommandLine|contains|all:
            - 'stdregprov'
            - 'call'
        CommandLine|contains:
            - 'CheckAccess'
            - 'EnumKey'
            - 'EnumValues'
            - 'GetBinaryValue'
            - 'GetDWORDValue'
            - 'GetExpandedStringValue'
            - 'GetMultiStringValue'
            - 'GetQWORDValue'
            - 'GetSecurityDescriptor'
            - 'GetStringValue'
    condition: all of selection_*
falsepositives:
    - Legitimate administrative activity
level: medium

Original YAML and metadata in JSON

False positives

• Legitimate administrative activity

Source references

• https://trustedsec.com/blog/command-line-underdog-wmic-in-action
• https://trustedsec.com/blog/wmi-for-script-kiddies
• https://learn.microsoft.com/en-us/previous-versions/windows/desktop/regprov/stdregprov