Justin Ibarra
44 lines
1.4 KiB
TOML
44 lines
1.4 KiB
TOML
[metadata]
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creation_date = "2020/09/03"
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maturity = "production"
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updated_date = "2021/03/03"
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[rule]
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anomaly_threshold = 75
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author = ["Elastic"]
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description = """
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Looks for commands related to system user or owner discovery from an unusual user context. This can be due to uncommon
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troubleshooting activity or due to a compromised account. A compromised account may be used to engage in system owner or
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user discovery in order to identify currently active or primary users of a system. This may be a precursor to additional
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discovery, credential dumping or privilege elevation activity.
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"""
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false_positives = [
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"""
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Uncommon user command activity can be due to an engineer logging onto a server instance in order to perform manual
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troubleshooting or reconfiguration.
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""",
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]
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from = "now-45m"
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interval = "15m"
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license = "Elastic License v2"
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machine_learning_job_id = "linux_system_user_discovery"
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name = "Unusual Linux System Owner or User Discovery Activity"
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risk_score = 21
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rule_id = "59756272-1998-4b8c-be14-e287035c4d10"
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severity = "low"
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tags = ["Elastic", "Host", "Linux", "Threat Detection", "ML"]
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type = "machine_learning"
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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 = "T1033"
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name = "System Owner/User Discovery"
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reference = "https://attack.mitre.org/techniques/T1033/"
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[rule.threat.tactic]
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id = "TA0007"
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name = "Discovery"
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reference = "https://attack.mitre.org/tactics/TA0007/"
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