Ruben Groenewoud
40118186fb
Co-authored-by: shashank-elastic <91139415+shashank-elastic@users.noreply.github.com>
57 lines
1.7 KiB
TOML
57 lines
1.7 KiB
TOML
[metadata]
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creation_date = "2024/11/04"
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integration = ["endpoint"]
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maturity = "production"
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updated_date = "2024/11/04"
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[rule]
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author = ["Elastic"]
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description = """
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This rule monitors for the execution of commands that enable IPv4 and IPv6 forwarding on Linux systems. Enabling IP
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forwarding can be used to route network traffic between different network interfaces, potentially allowing attackers to
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pivot between networks, exfiltrate data, or establish command and control channels.
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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 = "IPv4/IPv6 Forwarding Activity"
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risk_score = 21
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rule_id = "5a138e2e-aec3-4240-9843-56825d0bc569"
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severity = "low"
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tags = [
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"Domain: Endpoint",
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"OS: Linux",
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"Use Case: Threat Detection",
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"Tactic: Command and Control",
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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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process where host.os.type == "linux" and event.type == "start" and event.action == "exec" and
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process.parent.executable != null and process.command_line like (
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"*net.ipv4.ip_forward*", "*/proc/sys/net/ipv4/ip_forward*", "*net.ipv6.conf.all.forwarding*",
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"*/proc/sys/net/ipv6/conf/all/forwarding*"
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) and (
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(process.name == "sysctl" and process.args like ("*-w*", "*--write*", "*=*")) or
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(
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process.name in ("bash", "dash", "sh", "tcsh", "csh", "zsh", "ksh", "fish") and process.args == "-c" and
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process.command_line like "*echo *"
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)
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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 = "T1572"
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name = "Protocol Tunneling"
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reference = "https://attack.mitre.org/techniques/T1572/"
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[rule.threat.tactic]
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id = "TA0011"
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name = "Command and Control"
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reference = "https://attack.mitre.org/tactics/TA0011/"
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