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

3,707

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Backends

Live from sigconverter.io

CLI Versions

Newest: 2.0.2

Translation Workspace

Shape the rule before it leaves Phoenix

Tune Translation

Active Rule

New Remote Desktop Connection Initiated Via Mstsc.EXE

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

New Remote Desktop Connection Initiated Via Mstsc.EXE

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: New Remote Desktop Connection Initiated Via Mstsc.EXE
id: 954f0af7-62dd-418f-b3df-a84bc2c7a774
status: test
description: |
    Detects the usage of "mstsc.exe" with the "/v" flag to initiate a connection to a remote server.
    Adversaries may use valid accounts to log into a computer using the Remote Desktop Protocol (RDP). The adversary may then perform actions as the logged-on user.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1021.001/T1021.001.md#t1021001---remote-desktop-protocol
    - https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/mstsc
author: frack113
date: 2022-01-07
modified: 2024-06-04
tags:
    - attack.lateral-movement
    - attack.t1021.001
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\mstsc.exe'
        - OriginalFileName: 'mstsc.exe'
    selection_cli:
        CommandLine|contains|windash: ' /v:'
    filter_optional_wsl:
        # Example: mstsc.exe /v:XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX /hvsocketserviceid:XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX /silent /wslg /plugin:WSLDVC /wslgsharedmemorypath:WSL\XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX\wslg C:\ProgramData\Microsoft\WSL\wslg.rdp
        ParentImage: 'C:\Windows\System32\lxss\wslhost.exe'
        CommandLine|contains: 'C:\ProgramData\Microsoft\WSL\wslg.rdp'
    condition: all of selection_* and not 1 of filter_optional_*
falsepositives:
    - WSL (Windows Sub System For Linux)
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_mstsc_remote_connection.yml