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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
Tune Translation
Active Rule
PowerShell Script With File Upload Capabilities
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
PowerShell Script With File Upload Capabilities
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: PowerShell Script With File Upload Capabilities
id: d2e3f2f6-7e09-4bf2-bc5d-90186809e7fb
status: test
description: Detects PowerShell scripts leveraging the "Invoke-WebRequest" cmdlet to send data via either "PUT" or "POST" method.
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1020/T1020.md
- https://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html
- https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.utility/invoke-webrequest?view=powershell-7.4
author: frack113
date: 2022-01-07
modified: 2025-07-18
tags:
- attack.exfiltration
- attack.t1020
logsource:
product: windows
category: ps_script
definition: bade5735-5ab0-4aa7-a642-a11be0e40872
detection:
selection_cmdlet:
ScriptBlockText|contains:
- 'Invoke-RestMethod'
- 'Invoke-WebRequest'
- 'irm '
- 'iwr '
selection_flag:
ScriptBlockText|contains:
- '-Method "POST"'
- '-Method "PUT"'
- '-Method POST'
- '-Method PUT'
- "-Method 'POST'"
- "-Method 'PUT'"
condition: all of selection_*
falsepositives:
- Unknown
level: low
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/powershell/powershell_script/posh_ps_script_with_upload_capabilities.yml