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.

Browse Rules Explore Ecosystem

Indexed Rules

3,707

Ready to search

Backends

Live from sigconverter.io

CLI Versions

Newest: 2.0.2

Translation Workspace

Shape the rule before it leaves Phoenix

Tune Translation

Active Rule

Cloudflared Portable Execution

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

Cloudflared Portable Execution

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: Cloudflared Portable Execution
id: fadb84f0-4e84-4f6d-a1ce-9ef2bffb6ccd
status: test
description: |
    Detects the execution of the "cloudflared" binary from a non standard location.
references:
    - https://developers.cloudflare.com/cloudflare-one/connections/connect-networks/do-more-with-tunnels/trycloudflare/
    - https://github.com/cloudflare/cloudflared
    - https://www.intrinsec.com/akira_ransomware/
    - https://www.guidepointsecurity.com/blog/tunnel-vision-cloudflared-abused-in-the-wild/
    - https://github.com/cloudflare/cloudflared/releases
author: Nasreddine Bencherchali (Nextron Systems)
tags:
    - attack.command-and-control
    - attack.t1090.001
date: 2023-12-20
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith: '\cloudflared.exe'
    filter_main_admin_location:
        Image|contains:
            - ':\Program Files (x86)\cloudflared\'
            - ':\Program Files\cloudflared\'
    condition: selection and not 1 of filter_main_*
falsepositives:
    - Legitimate usage of Cloudflared portable versions
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_cloudflared_portable_execution.yml