Suspicious Password Protected ZIP File Opened (via security)

title: Suspicious Password Protected ZIP File Opened (via security)
id: e200c006-dc44-59a5-9e4e-72c217603556
status: stable
description: This rule detects the extraction of password protected ZIP archives. See the filename variable for more details on which file has been opened.
references:
    - https://attack.mitre.org/techniques/T1027/
    - https://twitter.com/sbousseaden/status/1523383197513379841
author: Huntrule Team
date: 2026-05-26
tags:
    - attack.stealth
    - attack.t1027
logsource:
    product: windows
    service: security
detection:
    selection:
        EventID: 5379
        TargetName|contains: 'Microsoft_Windows_Shell_ZipFolder:filename'
    filter:
        TargetName|contains: '\Temporary Internet Files\Content.Outlook'
    condition: selection and not filter
falsepositives:
    - Unknown
level: medium