Ruben Groenewoud
601254488b
* [BBR Promotion] Q2 Linux BBR Promotion * Update collection_linux_clipboard_activity.toml * Update defense_evasion_creation_of_hidden_files_directories.toml
57 lines
1.9 KiB
TOML
57 lines
1.9 KiB
TOML
[metadata]
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creation_date = "2023/09/04"
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integration = ["endpoint", "auditd_manager"]
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maturity = "production"
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updated_date = "2024/10/18"
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[rule]
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author = ["Elastic"]
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description = """
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This rule monitors for inter-process communication via Unix sockets. Adversaries may attempt to communicate with local
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Unix sockets to enumerate application details, find vulnerabilities/configuration mistakes and potentially escalate
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privileges or set up malicious communication channels via Unix sockets for inter-process communication to attempt to
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evade detection.
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"""
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from = "now-9m"
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index = ["logs-endpoint.events.*", "endgame-*", "auditbeat-*", "logs-auditd_manager.auditd-*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Unix Socket Connection"
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risk_score = 21
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rule_id = "41284ba3-ed1a-4598-bfba-a97f75d9aba2"
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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: Execution",
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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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]
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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 in ("exec", "exec_event", "executed", "process_started")
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and (
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(process.name in ("nc", "ncat", "netcat", "nc.openbsd") and
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process.args == "-U" and process.args : ("/usr/local/*", "/run/*", "/var/run/*")) or
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(process.name == "socat" and
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process.args == "-" and process.args : ("UNIX-CLIENT:/usr/local/*", "UNIX-CLIENT:/run/*", "UNIX-CLIENT:/var/run/*"))
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) and
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not process.args == "/var/run/libvirt/libvirt-sock"
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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 = "T1559"
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name = "Inter-Process Communication"
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reference = "https://attack.mitre.org/techniques/T1559/"
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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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