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 local pySigma backend, then reveal pipelines only when you actually need them.
Indexed Rules
3,731
Ready to search
Backends
17
Loaded from pysigma-node
pySigma Versions
10
Newest: 1.3.3
Translation Workspace
Shape the rule before it leaves Phoenix
Tune Translation
Active Rule
Amsi.DLL Loaded Via LOLBIN Process
Target Profile
Splunk
Splunk through pysigma-backend-splunk.
Format Mode
Default
Default pySigma output mode for this backend.
Conversion Output
Amsi.DLL Loaded Via LOLBIN Process
Using Splunk · Default · pySigma 1.3.3
Translation controls
Adjust the rule on the left, then regenerate when you want a fresh backend-native query.
BackendSplunkFormatDefaultVersion1.3.3
title: Amsi.DLL Loaded Via LOLBIN Process
id: 6ec86d9e-912e-4726-91a2-209359b999b9
status: test
description: Detects loading of "Amsi.dll" by a living of the land process. This could be an indication of a "PowerShell without PowerShell" attack
references:
- Internal Research
- https://www.paloaltonetworks.com/blog/security-operations/stopping-powershell-without-powershell/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-06-01
modified: 2025-10-07
tags:
- attack.defense-evasion
logsource:
category: image_load
product: windows
detection:
selection:
ImageLoaded|endswith: '\amsi.dll'
Image|endswith:
# TODO: Add more interesting processes
- '\ExtExport.exe'
- '\odbcconf.exe'
# - '\regsvr32.exe' # legitimately calls amsi.dll
- '\rundll32.exe'
condition: selection
falsepositives:
- Unknown
level: medium
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/image_load/image_load_dll_amsi_suspicious_process.yml