Suspicious Scheduled Task Creation Involving Temp Folder

Title: Suspicious Scheduled Task Creation Involving Temp Folder
Status: test
Description:Detects the creation of scheduled tasks that involves a temporary folder and runs only once
References:
  -https://discuss.elastic.co/t/detection-and-response-for-hafnium-activity/266289/3
Author: Florian Roth (Nextron Systems)
Date: 2021-03-11
modified:2022-10-09
Tags:

• -'attack.privilege-escalation'
• -'attack.execution'
• -'attack.persistence'
• -'attack.t1053.005'

Logsource:

• category: process_creation
• product: windows

Detection:
  selection:
    Image|endswith: '\schtasks.exe'
    CommandLine|contains|all:
      -' /create '
      -' /sc once '
      -'\Temp\'

  condition:selection
Falsepositives:
  -Administrative activity
  -Software installation
Level: high