Suspicious Use Of Web Request Commands And Cmdlets (via process_creation)
This rule detects the use of various web request commands with commandline tools and Windows PowerShell cmdlets (including aliases) via CommandLine
SigmamediumWindowsv1
sigma
suspicious-use-of-web-request-commands-and-cmdlets-via-process-creation
title: Suspicious Use Of Web Request Commands And Cmdlets (via process_creation)
id: 98cb18d7-8666-501f-960e-ee8775ab54e3
status: stable
description: This rule detects the use of various web request commands with commandline tools and Windows PowerShell cmdlets (including aliases) via CommandLine
references:
- https://attack.mitre.org/techniques/T1059/001/
- https://4sysops.com/archives/use-powershell-to-download-a-file-with-http-https-and-ftp/
- https://blog.jourdant.me/post/3-ways-to-download-files-with-powershell
- https://learn.microsoft.com/en-us/powershell/module/bitstransfer/add-bitsfile?view=windowsserver2019-ps
author: Huntrule Team
date: 2026-02-14
tags:
- attack.execution
- attack.t1059.001
logsource:
category: process_creation
product: windows
detection:
selection:
CommandLine|contains:
- '[System.Net.WebRequest]::create'
- 'curl '
- 'Invoke-RestMethod'
- 'Invoke-WebRequest'
- ' irm '
- 'iwr '
- 'Resume-BitsTransfer'
- 'Start-BitsTransfer'
- 'wget '
- 'WinHttp.WinHttpRequest'
condition: selection
falsepositives:
- Unknown
level: medium
Known false positives
- Unknown
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.