Justin Ibarra
44 lines
1.4 KiB
TOML
44 lines
1.4 KiB
TOML
[metadata]
|
|
creation_date = "2020/09/03"
|
|
maturity = "production"
|
|
updated_date = "2021/03/03"
|
|
|
|
[rule]
|
|
anomaly_threshold = 25
|
|
author = ["Elastic"]
|
|
description = """
|
|
Looks for commands related to system network connection discovery from an unusual user context. This can be due to
|
|
uncommon troubleshooting activity or due to a compromised account. A compromised account may be used by a threat actor
|
|
to engage in system network connection discovery in order to increase their understanding of connected services and
|
|
systems. This information may be used to shape follow-up behaviors such as lateral movement or additional discovery.
|
|
"""
|
|
false_positives = [
|
|
"""
|
|
Uncommon user command activity can be due to an engineer logging onto a server instance in order to perform manual
|
|
troubleshooting or reconfiguration.
|
|
""",
|
|
]
|
|
from = "now-45m"
|
|
interval = "15m"
|
|
license = "Elastic License v2"
|
|
machine_learning_job_id = "linux_network_connection_discovery"
|
|
name = "Unusual Linux Network Connection Discovery"
|
|
risk_score = 21
|
|
rule_id = "c28c4d8c-f014-40ef-88b6-79a1d67cd499"
|
|
severity = "low"
|
|
tags = ["Elastic", "Host", "Linux", "Threat Detection", "ML"]
|
|
type = "machine_learning"
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1049"
|
|
name = "System Network Connections Discovery"
|
|
reference = "https://attack.mitre.org/techniques/T1049/"
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0007"
|
|
name = "Discovery"
|
|
reference = "https://attack.mitre.org/tactics/TA0007/"
|
|
|