Suspicious Windows Screen Capture with CopyFromScreen (via ps_script)

This rule detects threat actors may attempt to take screen captures of the desktop to gather information over the course of an operation. Screen capturing functionality may be included as a feature of a remote access tool used in post-compromise operations

SigmamediumWindowsv1

sigma

suspicious-windows-screen-capture-with-copyfromscreen-via-ps-script

title: Suspicious Windows Screen Capture with CopyFromScreen (via ps_script)
id: ff2285ef-7521-5c11-9daa-dfe0fed2494e
status: stable
description: This rule detects threat actors may attempt to take screen captures of the desktop to gather information over the course of an operation. Screen capturing functionality may be included as a feature of a remote access tool used in post-compromise operations
references:
    - https://attack.mitre.org/techniques/T1113/
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1113/T1113.md#atomic-test-6---windows-screen-capture-copyfromscreen
author: Huntrule Team
date: 2026-05-15
tags:
    - attack.collection
    - attack.t1113
logsource:
    product: windows
    category: ps_script
    definition: 'Requirements: Script Block Logging must be enabled'
detection:
    selection:
        ScriptBlockText|contains: '.CopyFromScreen'
    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.