Methods for Downloading Files with PowerShell
Identifies PowerShell downloading files from external sources, a common malware delivery technique. Covers Invoke-WebRequest, Invoke-RestMethod and Start-BitsTransfer, the curl and wget aliases, and .NET classes…
Description
Identifies PowerShell downloading files from external sources, a common malware delivery technique. Covers Invoke-WebRequest, Invoke-RestMethod and Start-BitsTransfer, the curl and wget aliases, and .NET classes System.Net.WebClient and HttpClient.
Detection logic
Detection requirements
- Platform
- ESXiLinuxmacOSNetwork DevicesWindows
The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.
- Log source product
- securityeventswindowssecurityevents
- Log source service
- securityevent
MITRE ATT&CK mappings
0 exclusive techniques.This is coverage no other published rule has; it is not this rule's total technique count.
No references are available for this detection.
From the source
- At source
- Open at source
- Upstream identifier
- c7b320fb-ac67-45b0-92c4-b0f1e10b4e46
- Tagged by the source as
- CommandAndControlExecution
Licence
- Published under
- MIT LicenseRead the licence
- Attribution
- Required
- Obtained under
- MITRead the origin licence
Authorship
- Published
- Sep 1, 2026
- Version
- 1