Possible Screen Capture - macOS (via process_creation)

This rule detects attempts to use screencapture to collect macOS screenshots

SigmalowmacOSv1
sigma
title: Possible Screen Capture - macOS (via process_creation)
id: 6a8df5e5-0132-5bb4-9a45-c2462347bb9c
status: stable
description: This rule detects attempts to use screencapture to collect macOS screenshots
references:
    - https://attack.mitre.org/techniques/T1113/
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1113/T1113.md
    - https://github.com/EmpireProject/Empire/blob/08cbd274bef78243d7a8ed6443b8364acd1fc48b/lib/modules/python/collection/osx/screenshot.py
author: Huntrule Team
date: 2026-06-16
tags:
    - attack.collection
    - attack.t1113
logsource:
    product: macos
    category: process_creation
detection:
    selection:
        Image: '/usr/sbin/screencapture'
    condition: selection
falsepositives:
    - Unknown
level: low

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.