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

3,731

Ready to search

Backends

Live from sigconverter.io

CLI Versions

Newest: 3.0.2

Translation Workspace

Shape the rule before it leaves Phoenix

Tune Translation

Active Rule

Google Workspace Out Of Domain Email Forwarding

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

Google Workspace Out Of Domain Email Forwarding

Using Splunk · Default · sigma-cli 3.0.2

Translation controls

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

BackendSplunkFormatDefaultVersion3.0.2

title: Google Workspace Out Of Domain Email Forwarding
id: 2a0bb2dd-eb5f-4517-8cb9-404f8ba764a5
status: experimental
description: Detects automatic email forwarding to external domains in Google Workspace, which may indicate data leakage or misuse.
references:
    - https://developers.google.com/workspace/admin/reports/v1/appendix/activity/login#email_forwarding_out_of_domain
author: Tom kluter
date: 2026-04-28
tags:
    - attack.t1114.003
    - attack.collection
logsource:
    product: gcp
    service: google_workspace.login
detection:
    selection:
        protoPayload.serviceName: 'login.googleapis.com'
        protoPayload.metadata.event.eventName: 'email_forwarding_out_of_domain'
    condition: selection
falsepositives:
    - Legitimate forwarding
level: medium

CLI command

Copy the exact command to reproduce this translation locally.

sigma convert --without-pipeline -t splunk -f default rules/cloud/gcp/gworkspace/login/gcp_gworkspace_out_of_domain_email_forwarding.yml