Suspicious Screen Capture Behavior Through Psr.EXE (via process_creation)

This rule detects execution of Windows Problem Steps Recorder (psr.exe), a utility used to record the user screen and clicks.

SigmamediumWindowsv1
sigma
title: Suspicious Screen Capture Behavior Through Psr.EXE (via process_creation)
id: 77c72116-84b3-552d-ba2c-95ea95248dd4
status: stable
description: This rule detects execution of Windows Problem Steps Recorder (psr.exe), a utility used to record the user screen and clicks.
references:
    - https://attack.mitre.org/techniques/T1113/
    - https://lolbas-project.github.io/lolbas/Binaries/Psr/
    - https://web.archive.org/web/20200229201156/https://www.sans.org/cyber-security-summit/archives/file/summit-archive-1493861893.pdf
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1560.001/T1560.001.md
author: Huntrule Team
date: 2026-07-19
tags:
    - attack.collection
    - attack.t1113
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith: '\Psr.exe'
        CommandLine|contains:
            - '/start'
            - '-start'
    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.