mirror of
https://github.com/splunk/security_content
synced 2026-06-08 17:32:49 +00:00
Michael Haag
72 lines
2.1 KiB
YAML
72 lines
2.1 KiB
YAML
name: Windows Hidden Schedule Task Settings
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id: 0b730470-5fe8-4b13-93a7-fe0ad014d0cc
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version: 1
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date: '2022-04-26'
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author: Teoderick Contreras, Splunk
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type: TTP
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datamodel:
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- Endpoint
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description: The following query utilizes Windows Security EventCode 4698,
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A scheduled task was created, to identify suspicious tasks registered on
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Windows either via schtasks.exe OR TaskService with a hidden settings
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that are unique entry of malware like industroyer2 or attack that uses
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lolbin to download other file or payload to the infected machine.
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search: '`wineventlog_security` EventCode=4698
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| xmlkv Message
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| search Hidden = true
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| stats count min(_time) as firstTime max(_time) as lastTime by Task_Name, Command, Author, Hidden, dest
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| `security_content_ctime(firstTime)`
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| `security_content_ctime(lastTime)`
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| `windows_hidden_schedule_task_settings_filter`'
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how_to_implement: To successfully implement this search, you need to be ingesting
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logs with the task schedule (Exa. Security Log EventCode 4698) endpoints. Tune and
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filter known instances of Task schedule used in your environment.
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known_false_positives: unknown
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references:
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- https://www.welivesecurity.com/2022/04/12/industroyer2-industroyer-reloaded/
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- https://cert.gov.ua/article/39518
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tags:
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analytic_story:
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- Industroyer2
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- Active Directory Discovery
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- CISA AA22-257A
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asset_type: Endpoint
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cis20:
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- CIS 3
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- CIS 5
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- CIS 16
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confidence: 80
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context:
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- Source:Endpoint
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- Stage:Execution
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dataset:
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- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1053/hidden_schedule_task/security.log
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impact: 80
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kill_chain_phases:
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- Exploitation
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message: A schedule task with hidden setting enable in host $dest$
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mitre_attack_id:
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- T1053
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nist:
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- DE.CM
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observable:
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- name: dest
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type: Hostname
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role:
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- Victim
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product:
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- Splunk Enterprise
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- Splunk Enterprise Security
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- Splunk Cloud
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required_fields:
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- _time
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- dest
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- Task_Name
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- Command
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- Author
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- Enabled
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- Hidden
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- Arguments
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risk_score: 64
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security_domain: endpoint
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