Phoenix Studio

Convert indexed Sigma rules into analyst-ready detections.

This studio is built around Phoenix's own rule corpus, not a blank editor. Search by title or rule id, choose a live sigma-cli backend, then reveal pipelines only when you actually need them.

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Indexed Rules

3,707

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Backends

Live from sigconverter.io

CLI Versions

Newest: 2.0.2

Translation Workspace

Shape the rule before it leaves Phoenix

Tune Translation

Active Rule

Hiding User Account Via SpecialAccounts Registry Key

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

Hiding User Account Via SpecialAccounts Registry Key

Using Splunk · Default · sigma-cli 2.0.2

Translation controls

Adjust the rule on the left, then regenerate when you want a fresh backend-native query.

BackendSplunkFormatDefaultVersion2.0.2

title: Hiding User Account Via SpecialAccounts Registry Key
id: f8aebc67-a56d-4ec9-9fbe-7b0e8b7b4efd
related:
    - id: 8a58209c-7ae6-4027-afb0-307a78e4589a
      type: obsolete
    - id: 9ec9fb1b-e059-4489-9642-f270c207923d
      type: similar
status: test
description: Detects modifications to the registry key "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\Userlist" where the value is set to "0" in order to hide user account from being listed on the logon screen.
references:
    - https://thedfirreport.com/2022/07/11/select-xmrig-from-sqlserver/
    - https://github.com/redcanaryco/atomic-red-team/blob/40b77d63808dd4f4eafb83949805636735a1fd15/atomics/T1564.002/T1564.002.md#atomic-test-3---create-hidden-user-in-registry
author: Nasreddine Bencherchali (Nextron Systems), frack113
date: 2022-07-12
modified: 2023-01-26
tags:
    - attack.defense-evasion
    - attack.t1564.002
logsource:
    category: registry_set
    product: windows
detection:
    selection:
        TargetObject|contains: '\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserList'
        Details: 'DWORD (0x00000000)'
    condition: selection
falsepositives:
    - Unknown
level: high
regression_tests_path: regression_data/rules/windows/registry/registry_set/registry_set_special_accounts/info.yml
simulation:
    - type: atomic-red-team
      name: Create Hidden User in Registry
      technique: T1564.002
      atomic_guid: 173126b7-afe4-45eb-8680-fa9f6400431c

CLI command

Copy the exact command to reproduce this translation locally.

sigma convert --without-pipeline -t splunk -f default rules/windows/registry/registry_set/registry_set_special_accounts.yml