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Convert indexed Sigma rules into analyst-ready detections.
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Newest: 2.0.2
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Active Rule
Potential Persistence Via Powershell Search Order Hijacking - Task
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Potential Persistence Via Powershell Search Order Hijacking - Task
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: Potential Persistence Via Powershell Search Order Hijacking - Task
id: b66474aa-bd92-4333-a16c-298155b120df
related:
- id: 6e8811ee-90ba-441e-8486-5653e68b2299
type: similar
status: test
description: Detects suspicious powershell execution via a schedule task where the command ends with an suspicious flags to hide the powershell instance instead of executeing scripts or commands. This could be a sign of persistence via PowerShell "Get-Variable" technique as seen being used in Colibri Loader
references:
- https://blog.malwarebytes.com/threat-intelligence/2022/04/colibri-loader-combines-task-scheduler-and-powershell-in-clever-persistence-technique/
author: pH-T (Nextron Systems), Florian Roth (Nextron Systems)
date: 2022-04-08
modified: 2023-02-03
tags:
- attack.privilege-escalation
- attack.execution
- attack.persistence
- attack.t1053.005
- attack.t1059.001
logsource:
product: windows
category: process_creation
detection:
selection:
ParentImage: 'C:\WINDOWS\System32\svchost.exe'
ParentCommandLine|contains|all:
- '-k netsvcs'
- '-s Schedule'
CommandLine|endswith:
- ' -windowstyle hidden'
- ' -w hidden'
- ' -ep bypass'
- ' -noni'
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_schtasks_powershell_persistence.yml