Justin Ibarra
065bcd8018
* refresh to latest ATT&CK 7.2 * add new unit test to further validate threat mappings * updated threat mappings in rules to reflect changes * new func to download and refresh mitre data based on version
45 lines
1.4 KiB
TOML
45 lines
1.4 KiB
TOML
[metadata]
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creation_date = "2020/09/03"
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ecs_version = ["1.6.0"]
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maturity = "production"
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updated_date = "2020/09/03"
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[rule]
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anomaly_threshold = 25
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author = ["Elastic"]
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description = """
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Looks for commands related to system network connection discovery from an unusual user context. This can be due to
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uncommon troubleshooting activity or due to a compromised account. A compromised account may be used by a threat actor
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to engage in system network connection discovery in order to increase their understanding of connected services and
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systems. This information may be used to shape follow-up behaviors such as lateral movement or additional discovery.
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"""
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false_positives = [
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"""
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Uncommon user command activity can be due to an engineer logging onto a server instance in order to perform manual
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troubleshooting or reconfiguration.
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""",
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]
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from = "now-45m"
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interval = "15m"
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license = "Elastic License"
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machine_learning_job_id = "linux_network_connection_discovery"
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name = "Unusual Linux Network Connection Discovery"
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risk_score = 21
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rule_id = "c28c4d8c-f014-40ef-88b6-79a1d67cd499"
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severity = "low"
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tags = ["Elastic", "Linux", "ML"]
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type = "machine_learning"
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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 = "T1049"
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name = "System Network Connections Discovery"
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reference = "https://attack.mitre.org/techniques/T1049/"
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[rule.threat.tactic]
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id = "TA0007"
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name = "Discovery"
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reference = "https://attack.mitre.org/tactics/TA0007/"
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