shashank-elastic
52 lines
1.5 KiB
TOML
52 lines
1.5 KiB
TOML
[metadata]
|
|
creation_date = "2020/09/03"
|
|
integration = ["auditd_manager", "endpoint"]
|
|
maturity = "production"
|
|
updated_date = "2024/05/21"
|
|
|
|
[rule]
|
|
anomaly_threshold = 75
|
|
author = ["Elastic"]
|
|
description = """
|
|
Looks for commands related to system user or owner 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 to engage in system owner or
|
|
user discovery in order to identify currently active or primary users of a system. This may be a precursor to additional
|
|
discovery, credential dumping or privilege elevation activity.
|
|
"""
|
|
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 = ["v3_linux_system_user_discovery"]
|
|
name = "Unusual Linux User Discovery Activity"
|
|
risk_score = 21
|
|
rule_id = "59756272-1998-4b8c-be14-e287035c4d10"
|
|
severity = "low"
|
|
tags = [
|
|
"Domain: Endpoint",
|
|
"OS: Linux",
|
|
"Use Case: Threat Detection",
|
|
"Rule Type: ML",
|
|
"Rule Type: Machine Learning",
|
|
"Tactic: Discovery",
|
|
]
|
|
type = "machine_learning"
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1033"
|
|
name = "System Owner/User Discovery"
|
|
reference = "https://attack.mitre.org/techniques/T1033/"
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0007"
|
|
name = "Discovery"
|
|
reference = "https://attack.mitre.org/tactics/TA0007/"
|
|
|