Execution of Suspicious Extrac32 Alternate Data Stream (via process_creation)

title: Execution of Suspicious Extrac32 Alternate Data Stream (via process_creation)
id: 2a2dfa7d-e72c-5a19-a64f-3c9e360212b5
status: stable
description: This rule detects extract data from cab file and hide it in an alternate data stream
references:
    - https://attack.mitre.org/techniques/T1564/004/
    - https://lolbas-project.github.io/lolbas/Binaries/Extrac32/
author: Huntrule Team
date: 2026-05-23
tags:
    - attack.stealth
    - attack.t1564.004
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|contains|all:
            - extrac32.exe
            - .cab
        CommandLine|re: ':[^\\]'
    condition: selection
falsepositives:
    - Unknown
level: medium