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

Windows Recovery Environment Disabled Via Reagentc

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

Windows Recovery Environment Disabled Via Reagentc

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: Windows Recovery Environment Disabled Via Reagentc
id: db1c21e4-cd66-4b4e-85ca-590f0780529c
status: experimental
description: |
    Detects attempts to disable windows recovery environment using Reagentc.
    ReAgentc.exe is a command-line tool in Windows used to manage the Windows Recovery Environment (WinRE).
    It allows users to enable, disable, and configure WinRE, which is used for troubleshooting and repairing common boot issues.
references:
    - https://www.elastic.co/security-labs/maas-appeal-an-infostealer-rises-from-the-ashes
    - https://learn.microsoft.com/en-us/windows-hardware/manufacture/desktop/reagentc-command-line-options?view=windows-11
author: Daniel Koifman (KoifSec), Michael Vilshin
date: 2025-07-31
tags:
    - attack.impact
    - attack.t1490
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:   # Example command simulated:  reagentc /disable
        - Image|endswith: '\reagentc.exe'
        - OriginalFileName: 'reagentc.exe'
    selection_cli:
        CommandLine|contains|windash: '/disable'
    condition: all of selection_*
falsepositives:
    - Legitimate administrative activity
level: medium

CLI command

Copy the exact command to reproduce this translation locally.

sigma convert --without-pipeline -t splunk -f default rules/windows/process_creation/proc_creation_win_reagentc_disable_windows_recovery_environment.yml