shashank-elastic
63 lines
2.2 KiB
TOML
63 lines
2.2 KiB
TOML
[metadata]
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creation_date = "2021/10/13"
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integration = ["windows"]
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maturity = "production"
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min_stack_comments = "New fields added: required_fields, related_integrations, setup"
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min_stack_version = "8.3.0"
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updated_date = "2023/10/23"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies a privilege escalation attempt via rogue named pipe impersonation. An adversary may abuse this technique by
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masquerading as a known named pipe and manipulating a privileged process to connect to it.
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"""
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from = "now-9m"
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index = ["winlogbeat-*", "logs-windows.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Privilege Escalation via Rogue Named Pipe Impersonation"
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references = [
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"https://itm4n.github.io/printspoofer-abusing-impersonate-privileges/",
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"https://github.com/zcgonvh/EfsPotato",
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"https://twitter.com/SBousseaden/status/1429530155291193354",
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]
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risk_score = 73
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rule_id = "76ddb638-abf7-42d5-be22-4a70b0bf7241"
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setup = """
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Named Pipe Creation Events need to be enabled within the Sysmon configuration by including the following settings:
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`condition equal "contains" and keyword equal "pipe"`
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If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2,
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events will not define `event.ingested` and default fallback for EQL rules was not added until version 8.2.
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Hence for this rule to work effectively, users will need to add a custom ingest pipeline to populate
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`event.ingested` to @timestamp.
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For more details on adding a custom ingest pipeline refer - https://www.elastic.co/guide/en/fleet/current/data-streams-pipeline-tutorial.html
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"""
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severity = "high"
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tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Privilege Escalation", "Data Source: Sysmon Only"]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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file where host.os.type == "windows" and event.action : "Pipe Created*" and
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/* normal sysmon named pipe creation events truncate the pipe keyword */
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file.name : "\\*\\Pipe\\*"
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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 = "T1134"
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name = "Access Token Manipulation"
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reference = "https://attack.mitre.org/techniques/T1134/"
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[rule.threat.tactic]
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id = "TA0004"
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name = "Privilege Escalation"
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reference = "https://attack.mitre.org/tactics/TA0004/"
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