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

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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

Root Certificate Installed From Susp Locations

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

Root Certificate Installed From Susp Locations

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 From Susp Locations
id: 5f6a601c-2ecb-498b-9c33-660362323afa
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://www.microsoft.com/security/blog/2022/09/07/profiling-dev-0270-phosphorus-ransomware-operations/
    - https://learn.microsoft.com/en-us/powershell/module/pki/import-certificate?view=windowsserver2022-ps
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-09-09
modified: 2023-01-16
tags:
    - attack.defense-evasion
    - attack.t1553.004
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|contains|all:
            - 'Import-Certificate'
            - ' -FilePath '
            - 'Cert:\LocalMachine\Root'
        CommandLine|contains:
            - '\AppData\Local\Temp\'
            - ':\Windows\TEMP\'
            - '\Desktop\'
            - '\Downloads\'
            - '\Perflogs\'
            - ':\Users\Public\'
    condition: 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_powershell_import_cert_susp_locations.yml