title: Tamper Windows Defender
author: frack113
date: 2021/06/07
description: Attempting to disable scheduled scanning and other parts of windows defender
    atp.
detection:
    SELECTION_1:
        HostApplication: '*Set-MpPreference*'
    SELECTION_2:
        HostApplication: '*-DisableRealtimeMonitoring 1*'
    SELECTION_3:
        HostApplication: '*-DisableBehaviorMonitoring 1*'
    SELECTION_4:
        HostApplication: '*-DisableScriptScanning 1*'
    SELECTION_5:
        HostApplication: '*-DisableBlockAtFirstSeen 1*'
    condition: (SELECTION_1 and (SELECTION_2 or SELECTION_3 or SELECTION_4 or SELECTION_5))
falsepositives:
- Unknown
id: ec19ebab-72dc-40e1-9728-4c0b805d722c
level: high
logsource:
    category: ps_classic_provider_start
    definition: fields have to be extract from event
    product: windows
modified: 2021/10/16
references:
- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1562.001/T1562.001.md
status: experimental
tags:
- attack.defense_evasion
- attack.t1562.001
yml_filename: powershell_tamper_with_windows_defender.yml
yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/powershell/powershell_classic