title: Rare Scheduled Task Creations
author: Florian Roth
date: 2017/03/17
description: This rule detects rare scheduled task creations. Typically software gets
    installed on multiple systems and not only on a few. The aggregation and count
    function selects tasks with rare names.
detection:
    SELECTION_1:
        EventID: 106
    condition: SELECTION_1| count() by TaskName < 5
falsepositives:
- Software installation
id: b20f6158-9438-41be-83da-a5a16ac90c2b
level: low
logsource:
    product: windows
    service: taskscheduler
status: experimental
tags:
- attack.persistence
- attack.t1053
- attack.s0111
- attack.t1053.005
yml_filename: win_rare_schtask_creation.yml
yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/other