Suspicious Powershell Local Email Collection (via ps_script)

title: Suspicious Powershell Local Email Collection (via ps_script)
id: 278a8e05-531c-55fe-85d8-b8de4db8c6a7
status: stable
description: This rule detects threat actors may target user email on local systems to collect sensitive information. Files containing email data can be acquired from a users local system, such as Outlook storage or cache files.
references:
    - https://attack.mitre.org/techniques/T1114/001/
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1114.001/T1114.001.md
author: Huntrule Team
date: 2026-05-26
tags:
    - attack.collection
    - attack.t1114.001
logsource:
    product: windows
    category: ps_script
    definition: 'Requirements: Script Block Logging must be enabled'
detection:
    selection:
        ScriptBlockText|contains:
            - 'Get-Inbox.ps1'
            - 'Microsoft.Office.Interop.Outlook'
            - 'Microsoft.Office.Interop.Outlook.olDefaultFolders'
            - '-comobject outlook.application'
    condition: selection
falsepositives:
    - Unknown
level: medium