sigma-rules/rules/ml/privilege_escalation_ml_linux_anomalous_sudo_activity.toml

[metadata]
creation_date = "2020/09/03"
integration = ["auditd_manager", "endpoint"]
maturity = "production"
updated_date = "2023/07/27"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"

[rule]
anomaly_threshold = 75
author = ["Elastic"]
description = """
Looks for sudo activity from an unusual user context. An unusual sudo user could be due to troubleshooting activity or
it could be a sign of credentialed access via compromised accounts.
"""
false_positives = [
    """
    Uncommon sudo activity can be due to an engineer logging onto a server instance in order to perform manual
    troubleshooting or reconfiguration.
    """,
]
from = "now-45m"
interval = "15m"
license = "Elastic License v2"
machine_learning_job_id = ["v3_linux_rare_sudo_user"]
name = "Unusual Sudo Activity"
risk_score = 21
rule_id = "1e9fc667-9ff1-4b33-9f40-fefca8537eb0"
severity = "low"
tags = ["Domain: Endpoint", "OS: Linux", "Use Case: Threat Detection", "Rule Type: ML", "Rule Type: Machine Learning", "Tactic: Privilege Escalation"]
type = "machine_learning"
[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1548"
name = "Abuse Elevation Control Mechanism"
reference = "https://attack.mitre.org/techniques/T1548/"


[rule.threat.tactic]
id = "TA0005"
name = "Defense Evasion"
reference = "https://attack.mitre.org/tactics/TA0005/"
[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1548"
name = "Abuse Elevation Control Mechanism"
reference = "https://attack.mitre.org/techniques/T1548/"


[rule.threat.tactic]
id = "TA0004"
name = "Privilege Escalation"
reference = "https://attack.mitre.org/tactics/TA0004/"