blue-team-tools/rules/windows/powershell/powershell_suspicious_mounted_share_deletion.yml

title: PowerShell Deleted Mounted Share
id: 66a4d409-451b-4151-94f4-a55d559c49b0
status: experimental
description: Detects when when a mounted share is removed. Adversaries may remove share connections that are no longer useful in order to clean up traces of their operation
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1070.005/T1070.005.md
author: 'oscd.community, @redcanary, Zach Stanford @svch0st'
date: 2020/10/08
tags:
    - attack.defense_evasion
    - attack.t1070.005
logsource:
    product: windows
    service: powershell
    definition: Script block logging must be enabled
detection:
    selection:
        EventID: 4104
        ScriptBlockText|contains:
          - 'Remove-SmbShare'
          - 'Remove-FileShare'
    condition: selection
falsepositives:
    - Administrators or Power users may remove their shares via cmd line
level: medium