
title: Defrag Deactivation
author: Florian Roth, Bartlomiej Czyz (@bczyz1)
date: 2019/03/04
description: Detects the deactivation and disabling of the Scheduled defragmentation
  task as seen by Slingshot APT group
detection:
  SELECTION_1:
    EventID: 1
  SELECTION_2:
    Image: '*\schtasks.exe'
  SELECTION_3:
    CommandLine:
    - '*/delete*'
    - '*/change*'
  SELECTION_4:
    CommandLine: '*/TN*'
  SELECTION_5:
    CommandLine: '*\Microsoft\Windows\Defrag\ScheduledDefrag*'
  condition: (SELECTION_1 and SELECTION_2 and SELECTION_3 and SELECTION_4 and SELECTION_5)
falsepositives:
- Unknown
id: 958d81aa-8566-4cea-a565-59ccd4df27b0
level: medium
logsource:
  category: process_creation
  product: windows
modified: 2021/09/19
references:
- https://securelist.com/apt-slingshot/84312/
status: experimental
tags:
- attack.persistence
- attack.t1053.005
- attack.s0111
ruletype: SIGMA
