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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 local pySigma backend, then reveal pipelines only when you actually need them.

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Indexed Rules

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Backends

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pySigma Versions

Newest: 1.3.3

Translation Workspace

Shape the rule before it leaves Phoenix

Tune Translation

Active Rule

Delete Important Scheduled Task

pySigma version

Backend

Format

Target Profile

Splunk

Splunk through pysigma-backend-splunk.

Format Mode

Default

Default pySigma output mode for this backend.

Conversion Output

Delete Important Scheduled Task

Using Splunk · Default · pySigma 1.3.3

Translation controls

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

BackendSplunkFormatDefaultVersion1.3.3

title: Delete Important Scheduled Task
id: dbc1f800-0fe0-4bc0-9c66-292c2abe3f78
related:
    - id: 9e3cb244-bdb8-4632-8c90-6079c8f4f16d # TaskScheduler EventLog
      type: similar
    - id: 7595ba94-cf3b-4471-aa03-4f6baa9e5fad # Security-Audting Eventlog
      type: similar
status: test
description: Detects when adversaries stop services or processes by deleting their respective scheduled tasks in order to conduct data destructive activities
references:
    - Internal Research
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-09-09
modified: 2026-03-11
tags:
    - attack.impact
    - attack.t1489
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\schtasks.exe'
        - OriginalFileName: 'schtasks.exe'
    selection_cli_delete:
        CommandLine|contains|windash: '/delete'
    selection_cli_task:
        CommandLine|contains:
            # Add more important tasks
            - '\Windows\BitLocker'
            - '\Windows\ExploitGuard'
            - '\Windows\SystemRestore\SR'
            - '\Windows\UpdateOrchestrator\'
            - '\Windows\Windows Defender\'
            - '\Windows\WindowsBackup\'
            - '\Windows\WindowsUpdate\'
    condition: all of selection_*
falsepositives:
    - Unlikely
level: high
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_schtasks_delete/info.yml

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_schtasks_delete.yml