Ruben Groenewoud
56e8e059b6
* [New Rules] Docker entrypoint netcon / nsenter escape * ++ * Update privilege_escalation_docker_escape_via_nsenter.toml * Update privilege_escalation_docker_escape_via_nsenter.toml * Better description formatting * Update execution_egress_connection_from_entrypoint_in_container.toml * Update privilege_escalation_docker_escape_via_nsenter.toml
78 lines
2.7 KiB
TOML
78 lines
2.7 KiB
TOML
[metadata]
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creation_date = "2024/07/10"
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integration = ["endpoint"]
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maturity = "production"
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updated_date = "2024/07/10"
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[rule]
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author = ["Elastic"]
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description = """
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This rule identifies a sequence of events where a process named `entrypoint.sh` is started in a container, followed by a
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network connection attempt. This sequence indicates a potential egress connection from an entrypoint in a container. An
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entrypoint is a command or script specified in the Dockerfile and executed when the container starts. Attackers can use
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this technique to establish a foothold in the environment, escape from a container to the host, or establish persistence.
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"""
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from = "now-9m"
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index = ["logs-endpoint.events.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Egress Connection from Entrypoint in Container"
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risk_score = 47
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rule_id = "c75d0c86-38d6-4821-98a1-465cff8ff4c8"
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severity = "medium"
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tags = [
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"Domain: Endpoint",
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"Domain: Container",
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"OS: Linux",
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"Use Case: Threat Detection",
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"Tactic: Execution",
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"Data Source: Elastic Defend",
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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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sequence by host.id with maxspan=3s
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[process where host.os.type == "linux" and event.type == "start" and event.action == "exec" and
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process.entry_leader.entry_meta.type == "container" and process.name == "entrypoint.sh"] by process.entity_id
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[network where event.type == "start" and event.action == "connection_attempted" and not (
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destination.ip == null or destination.ip == "0.0.0.0" or cidrmatch(
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destination.ip, "10.0.0.0/8", "127.0.0.0/8", "169.254.0.0/16", "172.16.0.0/12", "192.0.0.0/24", "192.0.0.0/29",
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"192.0.0.8/32", "192.0.0.9/32", "192.0.0.10/32", "192.0.0.170/32", "192.0.0.171/32", "192.0.2.0/24",
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"192.31.196.0/24", "192.52.193.0/24", "192.168.0.0/16", "192.88.99.0/24", "224.0.0.0/4", "100.64.0.0/10",
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"192.175.48.0/24","198.18.0.0/15", "198.51.100.0/24", "203.0.113.0/24", "240.0.0.0/4", "::1", "FE80::/10",
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"FF00::/8", "172.31.0.0/16"
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)
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)] by process.parent.entity_id
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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 = "T1059"
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name = "Command and Scripting Interpreter"
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reference = "https://attack.mitre.org/techniques/T1059/"
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[[rule.threat.technique.subtechnique]]
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id = "T1059.004"
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name = "Unix Shell"
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reference = "https://attack.mitre.org/techniques/T1059/004/"
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[rule.threat.tactic]
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id = "TA0002"
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name = "Execution"
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reference = "https://attack.mitre.org/tactics/TA0002/"
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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 = "T1611"
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name = "Escape to Host"
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reference = "https://attack.mitre.org/techniques/T1611/"
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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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