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.
Indexed Rules
3,707
Ready to search
Backends
17
Live from sigconverter.io
CLI Versions
10
Newest: 2.0.2
Translation Workspace
Shape the rule before it leaves Phoenix
Tune Translation
Active Rule
Potential COLDSTEEL RAT Windows User Creation
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Potential COLDSTEEL RAT Windows User Creation
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 COLDSTEEL RAT Windows User Creation
id: 95214813-4c7a-4a50-921b-ee5c538e1d16
status: test
description: Detects creation of a new user profile with a specific username, seen being used by some variants of the COLDSTEEL RAT.
references:
- https://www.ncsc.gov.uk/static-assets/documents/malware-analysis-reports/cold-steel/NCSC-MAR-Cold-Steel.pdf
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-05-02
modified: 2023-08-17
tags:
- attack.persistence
- detection.emerging-threats
logsource:
category: registry_set
product: windows
detection:
selection:
TargetObject|contains|all:
- '\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\S-1-5-21-'
- '\ProfileImagePath'
Details|contains:
- 'ANONYMOUS'
- '_DomainUser_'
condition: selection
falsepositives:
- Unknown
level: high
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules-emerging-threats/2023/Malware/COLDSTEEL/registry_set_malware_coldsteel_created_users.yml