Possible Gatekeeper Bypass through Xattr (via process_creation)

title: Possible Gatekeeper Bypass through Xattr (via process_creation)
id: b1b8213d-f89e-5973-a460-27bd6bd85663
status: stable
description: This rule detects macOS Gatekeeper bypass via xattr utility
references:
    - https://attack.mitre.org/techniques/T1553/001/
    - https://github.com/redcanaryco/atomic-red-team/blob/1fed40dc7e48f16ed44dcdd9c73b9222a70cca85/atomics/T1553.001/T1553.001.md
    - https://www.loobins.io/binaries/xattr/
author: Huntrule Team
date: 2026-02-02
tags:
    - attack.defense-impairment
    - attack.t1553.001
logsource:
    category: process_creation
    product: macos
detection:
    selection:
        Image|endswith: '/xattr'
        CommandLine|contains|all:
            - '-d'
            - 'com.apple.quarantine'
    condition: selection
falsepositives:
    - Unknown
level: low