Justin Ibarra
6bdfddac8e
* Expand timestamp_override tests * removed timestamp_override from eql sequence rules * add config entry for eql rules with beats index and t_o * add timestamp_override to missing fields
61 lines
2.2 KiB
TOML
61 lines
2.2 KiB
TOML
[metadata]
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creation_date = "2020/02/18"
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maturity = "production"
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updated_date = "2022/03/31"
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[rule]
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author = ["Elastic"]
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description = """
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Indicates the creation of a scheduled task. Adversaries can use these to establish persistence, move laterally, and/or
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escalate privileges.
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"""
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false_positives = ["Legitimate scheduled tasks may be created during installation of new software."]
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from = "now-9m"
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index = ["winlogbeat-*", "logs-endpoint.events.*", "logs-windows.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Local Scheduled Task Creation"
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risk_score = 21
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rule_id = "afcce5ad-65de-4ed2-8516-5e093d3ac99a"
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severity = "low"
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tags = ["Elastic", "Host", "Windows", "Threat Detection", "Persistence"]
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type = "eql"
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query = '''
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sequence with maxspan=1m
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[process where event.type != "end" and
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((process.name : ("cmd.exe", "wscript.exe", "rundll32.exe", "regsvr32.exe", "wmic.exe", "mshta.exe",
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"powershell.exe", "pwsh.exe", "powershell_ise.exe", "WmiPrvSe.exe", "wsmprovhost.exe", "winrshost.exe") or
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process.pe.original_file_name : ("cmd.exe", "wscript.exe", "rundll32.exe", "regsvr32.exe", "wmic.exe", "mshta.exe",
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"powershell.exe", "pwsh.dll", "powershell_ise.exe", "WmiPrvSe.exe", "wsmprovhost.exe",
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"winrshost.exe")) or
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process.code_signature.trusted == false)] by process.entity_id
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[process where event.type == "start" and
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(process.name : "schtasks.exe" or process.pe.original_file_name == "schtasks.exe") and
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process.args : ("/create", "-create") and process.args : ("/RU", "/SC", "/TN", "/TR", "/F", "/XML") and
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/* exclude SYSTEM Integrity Level - look for task creations by non-SYSTEM user */
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not (process.Ext.token.integrity_level_name : "System" or winlog.event_data.IntegrityLevel : "System")
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] by process.parent.entity_id
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1053"
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name = "Scheduled Task/Job"
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reference = "https://attack.mitre.org/techniques/T1053/"
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[[rule.threat.technique.subtechnique]]
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id = "T1053.005"
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name = "Scheduled Task"
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reference = "https://attack.mitre.org/techniques/T1053/005/"
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[rule.threat.tactic]
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id = "TA0003"
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name = "Persistence"
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reference = "https://attack.mitre.org/tactics/TA0003/"
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