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

Potential Ryuk Ransomware Activity

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

Potential Ryuk Ransomware Activity

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: Potential Ryuk Ransomware Activity
id: c37510b8-2107-4b78-aa32-72f251e7a844
related:
    - id: 58bf96d9-ff5f-44bd-8dcc-1c4f79bf3a27
      type: similar
    - id: 0acaad27-9f02-4136-a243-c357202edd74
      type: obsolete
status: stable
description: Detects Ryuk ransomware activity
references:
    - https://app.any.run/tasks/d860402c-3ff4-4c1f-b367-0237da714ed1/
    - https://research.checkpoint.com/ryuk-ransomware-targeted-campaign-break/
author: Florian Roth (Nextron Systems), Vasiliy Burov, Nasreddine Bencherchali (Nextron Systems)
date: 2019-12-16
modified: 2023-02-03
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.t1547.001
    - detection.emerging-threats
logsource:
    category: process_creation
    product: windows
detection:
    selection_reg:
        CommandLine|contains|all:
            - 'Microsoft\Windows\CurrentVersion\Run'
            - 'C:\users\Public\'
    selection_del:
        CommandLine|contains|all:
            - 'del /s /f /q c:\'
            - '\*.bac'
            - '\*.bak'
            - '\*.bkf'
    selection_net:
        Image|endswith:
            - '\net.exe'
            - '\net1.exe'
        CommandLine|contains|all:
            - ' stop '
            - ' /y'
        CommandLine|contains:
            - 'samss'
            - 'audioendpointbuilder'
            - 'unistoresvc_'
            - 'AcrSch2Svc'
    condition: 1 of selection_*
falsepositives:
    - Unlikely
level: high

CLI command

Copy the exact command to reproduce this translation locally.

sigma convert --without-pipeline -t splunk -f default rules-emerging-threats/2019/Malware/Ryuk/proc_creation_win_malware_ryuk.yml