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
Root Certificate Installed - PowerShell
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Root Certificate Installed - PowerShell
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: Root Certificate Installed - PowerShell
id: 42821614-9264-4761-acfc-5772c3286f76
status: test
description: Adversaries may install a root certificate on a compromised system to avoid warnings when connecting to adversary controlled web servers.
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1553.004/T1553.004.md
author: 'oscd.community, @redcanary, Zach Stanford @svch0st'
date: 2020-10-10
modified: 2022-12-02
tags:
- attack.defense-evasion
- attack.t1553.004
logsource:
product: windows
category: ps_script
definition: 'Requirements: Script Block Logging must be enabled'
detection:
selection1:
ScriptBlockText|contains|all:
- 'Move-Item'
- 'Cert:\LocalMachine\Root'
selection2:
ScriptBlockText|contains|all:
- 'Import-Certificate'
- 'Cert:\LocalMachine\Root'
condition: 1 of selection*
falsepositives:
- Help Desk or IT may need to manually add a corporate Root CA on occasion. Need to test if GPO push doesn't trigger FP
level: medium
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/powershell/powershell_script/posh_ps_root_certificate_installed.yml