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.

Browse Rules Explore Ecosystem

Indexed Rules

3,707

Ready to search

Backends

Live from sigconverter.io

CLI Versions

Newest: 2.0.2

Translation Workspace

Shape the rule before it leaves Phoenix

Tune Translation

Active Rule

IcedID Malware Suspicious Single Digit DLL Execution Via Rundll32

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

IcedID Malware Suspicious Single Digit DLL Execution Via Rundll32

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: IcedID Malware Suspicious Single Digit DLL Execution Via Rundll32
id: 2bd8e100-5b3b-4b6a-bbb5-b129d3ddddc5
status: test
description: Detects RunDLL32.exe executing a single digit DLL named "1.dll" with the export function "DllRegisterServer". This behaviour was often seen used by malware and especially IcedID
references:
    - https://thedfirreport.com/2023/05/22/icedid-macro-ends-in-nokoyawa-ransomware/
    - https://thedfirreport.com/2023/08/28/html-smuggling-leads-to-domain-wide-ransomware/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-08-31
tags:
    - attack.defense-evasion
    - attack.t1218.011
    - detection.emerging-threats
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith: '\rundll32.exe'
        CommandLine|endswith:
            - '\1.dll, DllRegisterServer' # In case of full path exec
            - ' 1.dll, DllRegisterServer' # In case of direct exec
    condition: selection
falsepositives:
    - Unknown
level: high

CLI command

Copy the exact command to reproduce this translation locally.

sigma convert --without-pipeline -t splunk -f default rules-emerging-threats/2023/Malware/IcedID/proc_creation_win_malware_icedid_rundll32_dllregisterserver.yml