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
Mstsc.EXE Execution From Uncommon Parent
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Mstsc.EXE Execution From Uncommon Parent
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: Mstsc.EXE Execution From Uncommon Parent
id: ff3b6b39-e765-42f9-bb2c-ea6761e0e0f6
status: test
description: Detects potential RDP connection via Mstsc using a local ".rdp" file located in suspicious locations.
references:
- https://www.blackhillsinfosec.com/rogue-rdp-revisiting-initial-access-methods/
- https://web.archive.org/web/20230726144748/https://blog.thickmints.dev/mintsights/detecting-rogue-rdp/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-04-18
tags:
- attack.lateral-movement
logsource:
category: process_creation
product: windows
detection:
selection_parent:
ParentImage|endswith:
# Covers potential downloads/clicks from browsers
- '\brave.exe'
- '\CCleanerBrowser.exe'
- '\chrome.exe'
- '\chromium.exe'
- '\firefox.exe'
- '\iexplore.exe'
- '\microsoftedge.exe'
- '\msedge.exe'
- '\opera.exe'
- '\vivaldi.exe'
- '\whale.exe'
# Covers potential downloads/clicks from email clients
- '\outlook.exe'
selection_img:
- Image|endswith: '\mstsc.exe'
- OriginalFileName: 'mstsc.exe'
condition: all of selection_*
falsepositives:
- Unlikely
level: high
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_mstsc_run_local_rpd_file_susp_parent.yml