
title: Suspicious PowerShell Download
author: Florian Roth
date: 2017/03/05
description: Detects suspicious PowerShell download command
detection:
  SELECTION_1:
    ScriptBlockText: '*System.Net.WebClient*'
  SELECTION_2:
    ScriptBlockText:
    - '*.DownloadFile(*'
    - '*.DownloadString(*'
  condition: (SELECTION_1 and SELECTION_2)
falsepositives:
- PowerShell scripts that download content from the Internet
id: 403c2cc0-7f6b-4925-9423-bfa573bed7eb
level: medium
logsource:
  category: ps_script
  product: windows
modified: 2021/10/18
related:
- id: 65531a81-a694-4e31-ae04-f8ba5bc33759
  type: derived
status: experimental
tags:
- attack.execution
- attack.t1059.001
- attack.t1086
ruletype: SIGMA
