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
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Active Rule
Suspicious Advpack Call Via Rundll32.EXE
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Suspicious Advpack Call Via Rundll32.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: Suspicious Advpack Call Via Rundll32.EXE
id: a1473adb-5338-4a20-b4c3-126763e2d3d3
status: test
description: Detects execution of "rundll32" calling "advpack.dll" with potential obfuscated ordinal calls in order to leverage the "RegisterOCX" function
references:
- https://twitter.com/Hexacorn/status/1224848930795552769
- http://www.hexacorn.com/blog/2020/02/05/stay-positive-lolbins-not/
author: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)
date: 2023-05-17
tags:
- attack.defense-evasion
logsource:
category: process_creation
product: windows
detection:
selection_img:
- Image|endswith: '\rundll32.exe'
- OriginalFileName: 'RUNDLL32.EXE'
- CommandLine|contains: 'rundll32'
selection_cli_dll:
CommandLine|contains: 'advpack'
selection_cli_ordinal:
- CommandLine|contains|all:
- '#+'
- '12'
- CommandLine|contains: '#-'
condition: all of 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_rundll32_advpack_obfuscated_ordinal_call.yml