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
Suspicious Use of CSharp Interactive Console
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Suspicious Use of CSharp Interactive Console
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: Suspicious Use of CSharp Interactive Console
id: a9e416a8-e613-4f8b-88b8-a7d1d1af2f61
status: test
description: Detects the execution of CSharp interactive console by PowerShell
references:
- https://redcanary.com/blog/detecting-attacks-leveraging-the-net-framework/
author: Michael R. (@nahamike01)
date: 2020-03-08
modified: 2022-07-14
tags:
- attack.execution
- attack.defense-evasion
- attack.t1127
logsource:
category: process_creation
product: windows
detection:
selection:
Image|endswith: '\csi.exe'
ParentImage|endswith:
- '\powershell.exe'
- '\pwsh.exe'
- '\powershell_ise.exe'
OriginalFileName: 'csi.exe'
condition: selection
falsepositives:
- Possible depending on environment. Pair with other factors such as net connections, command-line args, etc.
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_csi_use_of_csharp_console.yml