sigma-rules/rules/windows/persistence_temp_scheduled_task.toml

[metadata]
creation_date = "2022/08/29"
integration = ["system", "windows"]
maturity = "production"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"
updated_date = "2023/10/13"

[rule]
author = ["Elastic"]
description = """
Indicates the creation and deletion of a scheduled task within a short time interval. Adversaries can use these to proxy
malicious execution via the schedule service and perform clean up.
"""
false_positives = ["Legitimate scheduled tasks may be created during installation of new software."]
from = "now-9m"
index = ["winlogbeat-*", "logs-system.*", "logs-windows.*"]
language = "eql"
license = "Elastic License v2"
name = "Temporarily Scheduled Task Creation"
references = ["https://docs.microsoft.com/en-us/windows/security/threat-protection/auditing/event-4698"]
risk_score = 47
rule_id = "81ff45f8-f8c2-4e28-992e-5a0e8d98e0fe"
severity = "medium"
tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Persistence", "Tactic: Execution"]
type = "eql"

query = '''
sequence by winlog.computer_name, winlog.event_data.TaskName with maxspan=5m
   [iam where event.action == "scheduled-task-created" and not user.name : "*$"]
   [iam where event.action == "scheduled-task-deleted" and not user.name : "*$"]
'''

[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1053"
name = "Scheduled Task/Job"
reference = "https://attack.mitre.org/techniques/T1053/"
[[rule.threat.technique.subtechnique]]
id = "T1053.005"
name = "Scheduled Task"
reference = "https://attack.mitre.org/techniques/T1053/005/"



[rule.threat.tactic]
id = "TA0003"
name = "Persistence"
reference = "https://attack.mitre.org/tactics/TA0003/"

[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1053"
name = "Scheduled Task/Job"
reference = "https://attack.mitre.org/techniques/T1053/"

[[rule.threat.technique.subtechnique]]
id = "T1053.005"
name = "Scheduled Task"
reference = "https://attack.mitre.org/techniques/T1053/005/"


[rule.threat.tactic]
id = "TA0002"
name = "Execution"
reference = "https://attack.mitre.org/tactics/TA0002/"