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

RunMRU Registry Key Deletion - Registry

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

RunMRU Registry Key Deletion - Registry

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: RunMRU Registry Key Deletion - Registry
id: 3a9b8c1e-5b2e-4f7a-9d1c-2a7f3b6e1c55
related:
    - id: c11aecef-9c37-45a6-9c07-bc0782f963fd
      type: similar
status: experimental
description: |
    Detects attempts to delete the RunMRU registry key, which stores the history of commands executed via the run dialog.
    In the clickfix techniques, the phishing lures instruct users to open a run dialog through (Win + R) and execute malicious commands.
    Adversaries may delete this key to cover their tracks after executing commands.
references:
    - https://www.zscaler.com/blogs/security-research/coldriver-updates-arsenal-baitswitch-and-simplefix
author: Swachchhanda Shrawan Poudel (Nextron Systems)
date: 2025-09-25
tags:
    - attack.defense-evasion
    - attack.t1070.003
logsource:
    category: registry_delete
    product: windows
detection:
    selection:
        TargetObject|endswith: '\Software\Microsoft\Windows\CurrentVersion\Explorer\RunMRU'
    condition: selection
falsepositives:
    - Unknown
level: high
regression_tests_path: regression_data/rules/windows/registry/registry_delete/registry_delete_runmru/info.yml

CLI command

Copy the exact command to reproduce this translation locally.

sigma convert --without-pipeline -t splunk -f default rules/windows/registry/registry_delete/registry_delete_runmru.yml