shashank-elastic
ae2a98e3f7
Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com> Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
48 lines
1.5 KiB
TOML
48 lines
1.5 KiB
TOML
[metadata]
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creation_date = "2022/09/01"
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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 = "2022/09/01"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies the manual reading of the /etc/shadow file via the commandline using standard system utilities.
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Threat actors will attempt to read this file, after elevating their privileges to root,
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in order to gain valid credentials they can utilize to move laterally undetected and access additional resources.
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"""
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from = "now-9m"
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index = ["auditbeat-*", "logs-endpoint.events.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Shadow File Read via Command Line Utilities"
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risk_score = 47
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rule_id = "9a3a3689-8ed1-4cdb-83fb-9506db54c61f"
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severity = "medium"
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tags = ["Elastic", "Host", "Linux", "Threat Detection", "Privilege Escalation"]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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process where event.type == "start" and event.action == "exec" and user.name == "root" and
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process.args : "/etc/shadow" and
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not process.executable: ("/usr/bin/find", "/usr/bin/cmp", "/bin/ls", "/usr/sbin/restorecon", "/usr/bin/uniq") and
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not process.parent.executable: "/bin/dracut"
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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 = "T1068"
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name = "Exploitation for Privilege Escalation"
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reference = "https://attack.mitre.org/techniques/T1068/"
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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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