Ruben Groenewoud
440ff43810
* Updated kubernetes.audit.requestObject.spec.containers.image type of text to Keyword * [Rule Tuning] Adding D4C Compatibility to Compatible Container-Related Rules
71 lines
2.2 KiB
TOML
71 lines
2.2 KiB
TOML
[metadata]
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creation_date = "2025/06/19"
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integration = ["endpoint", "auditd_manager", "crowdstrike", "cloud_defend"]
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maturity = "production"
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min_stack_comments = "Defend for Containers integration was re-introduced in 9.3.0"
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min_stack_version = "9.3.0"
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updated_date = "2026/02/05"
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[rule]
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author = ["Elastic"]
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building_block_type = "default"
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description = """
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This rule detects the execution of kubectl commands that are commonly used for configuration discovery in Kubernetes
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environments. It looks for process events where kubectl is executed with arguments that query configuration information,
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such as configmaps. In environments where kubectl is not expected to be used, this could indicate potential reconnaissance
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activity by an adversary.
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"""
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from = "now-119m"
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index = [
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"logs-endpoint.events.*",
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"endgame-*",
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"auditbeat-*",
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"logs-auditd_manager.auditd-*",
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"logs-crowdstrike.fdr*",
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"logs-cloud_defend.process*",
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]
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interval = "60m"
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language = "eql"
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license = "Elastic License v2"
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name = "Kubectl Configuration Discovery"
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risk_score = 21
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rule_id = "98ac2919-f8b3-4d2d-b85b-e1c13ac0c68b"
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severity = "low"
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tags = [
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"Domain: Container",
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"Domain: Endpoint",
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"Domain: Kubernetes",
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"OS: Linux",
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"Use Case: Threat Detection",
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"Tactic: Discovery",
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"Rule Type: BBR",
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"Data Source: Elastic Defend",
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"Data Source: Elastic Endgame",
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"Data Source: Auditd Manager",
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"Data Source: Crowdstrike",
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"Data Source: Elastic Defend for Containers",
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]
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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 host.os.type == "linux" and event.type == "start" and
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event.action in ("exec", "exec_event", "executed", "process_started", "ProcessRollup2") and
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process.name == "kubectl" and process.args in ("get", "describe") and process.args in ("configmap", "configmaps") and
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not ?process.parent.args in (
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"/hooks/schedule_sync_configmap.sh", "/service-fabric/generate-support-bundle.sh", "/hooks/onstartup_sync_configmap.sh"
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)
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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 = "T1613"
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name = "Container and Resource Discovery"
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reference = "https://attack.mitre.org/techniques/T1613/"
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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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