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 Remote Desktop Connection to Non-Domain Host
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Potential Remote Desktop Connection to Non-Domain Host
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 Remote Desktop Connection to Non-Domain Host
id: ce5678bb-b9aa-4fb5-be4b-e57f686256ad
status: test
description: Detects logons using NTLM to hosts that are potentially not part of the domain.
references:
- n/a
author: James Pemberton
date: 2020-05-22
modified: 2021-11-27
tags:
- attack.command-and-control
- attack.t1219.002
logsource:
product: windows
service: ntlm
definition: Requires events from Microsoft-Windows-NTLM/Operational
detection:
selection:
EventID: 8001
TargetName|startswith: 'TERMSRV'
condition: selection
falsepositives:
- Host connections to valid domains, exclude these.
- Host connections not using host FQDN.
- Host connections to external legitimate domains.
level: medium
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/builtin/ntlm/win_susp_ntlm_rdp.yml