Ruben Groenewoud
9807bebd8e
* [New Rule] Unix Socket Communication * Update rules_building_block/execution_unix_socket_communication.toml Co-authored-by: Isai <59296946+imays11@users.noreply.github.com> * Update rules_building_block/execution_unix_socket_communication.toml --------- Co-authored-by: Isai <59296946+imays11@users.noreply.github.com>
51 lines
1.8 KiB
TOML
51 lines
1.8 KiB
TOML
[metadata]
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creation_date = "2023/09/04"
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integration = ["endpoint"]
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maturity = "production"
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min_stack_comments = "New fields added: required_fields, related_integrations, setup"
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min_stack_version = "8.3.0"
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updated_date = "2023/09/04"
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bypass_bbr_timing = true
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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.*"]
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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 = ["Domain: Endpoint", "OS: Linux", "Use Case: Threat Detection", "Tactic: Execution", "Data Source: Elastic Defend", "Rule Type: BBR"]
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timestamp_override = "event.ingested"
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building_block_type = "default"
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type = "eql"
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query = '''
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process where host.os.type == "linux" and event.action == "exec" and event.type == "start" 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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)
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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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