shashank-elastic
92 lines
2.6 KiB
TOML
92 lines
2.6 KiB
TOML
[metadata]
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creation_date = "2021/12/10"
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integration = ["endpoint"]
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maturity = "production"
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updated_date = "2024/05/21"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies an outbound network connection by JAVA to LDAP, RMI or DNS standard ports followed by a suspicious JAVA child
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processes. This may indicate an attempt to exploit a JAVA/NDI (Java Naming and Directory Interface) injection
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vulnerability.
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"""
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from = "now-9m"
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index = ["auditbeat-*", "logs-endpoint.events.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Potential JAVA/JNDI Exploitation Attempt"
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references = [
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"https://www.lunasec.io/docs/blog/log4j-zero-day/",
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"https://github.com/christophetd/log4shell-vulnerable-app",
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"https://www.blackhat.com/docs/us-16/materials/us-16-Munoz-A-Journey-From-JNDI-LDAP-Manipulation-To-RCE.pdf",
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"https://www.elastic.co/security-labs/detecting-log4j2-with-elastic-security",
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"https://www.elastic.co/security-labs/analysis-of-log4shell-cve-2021-45046",
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]
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risk_score = 73
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rule_id = "c3f5e1d8-910e-43b4-8d44-d748e498ca86"
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severity = "high"
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tags = [
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"Domain: Endpoint",
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"OS: Linux",
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"OS: macOS",
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"Use Case: Threat Detection",
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"Tactic: Execution",
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"Use Case: Vulnerability",
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"Data Source: Elastic Defend",
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]
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type = "eql"
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query = '''
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sequence by host.id with maxspan=1m
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[network where event.action == "connection_attempted" and
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process.name : "java" and
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/*
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outbound connection attempt to
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LDAP, RMI or DNS standard ports
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by JAVA process
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*/
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destination.port in (1389, 389, 1099, 53, 5353)] by process.pid
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[process where event.type == "start" and
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/* Suspicious JAVA child process */
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process.parent.name : "java" and
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process.name : ("sh",
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"bash",
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"dash",
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"ksh",
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"tcsh",
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"zsh",
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"curl",
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"perl*",
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"python*",
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"ruby*",
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"php*",
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"wget")] by process.parent.pid
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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 = "T1059.007"
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name = "JavaScript"
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reference = "https://attack.mitre.org/techniques/T1059/007/"
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[[rule.threat.technique]]
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id = "T1203"
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name = "Exploitation for Client Execution"
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reference = "https://attack.mitre.org/techniques/T1203/"
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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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