Justin Ibarra
0e0b2ea1a4
* Update schema for threshold rule type for 7.12 * add downgrade function to drop new fields * update existing threshold rules
46 lines
1.2 KiB
TOML
46 lines
1.2 KiB
TOML
[metadata]
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creation_date = "2020/11/16"
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maturity = "production"
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updated_date = "2021/03/03"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies a high number (20) of macOS SSH KeyGen process executions from the same host. An adversary may attempt a
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brute force attack to obtain unauthorized access to user accounts.
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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 = "kuery"
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license = "Elastic License v2"
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name = "Potential SSH Brute Force Detected"
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references = ["https://themittenmac.com/detecting-ssh-activity-via-process-monitoring/"]
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risk_score = 47
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rule_id = "ace1e989-a541-44df-93a8-a8b0591b63c0"
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severity = "medium"
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tags = ["Elastic", "Host", "macOS", "Threat Detection", "Credential Access"]
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type = "threshold"
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query = '''
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event.category:process and event.type:start and process.name:"sshd-keygen-wrapper" and process.parent.name:launchd
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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 = "T1110"
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name = "Brute Force"
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reference = "https://attack.mitre.org/techniques/T1110/"
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[rule.threat.tactic]
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id = "TA0006"
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name = "Credential Access"
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reference = "https://attack.mitre.org/tactics/TA0006/"
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[rule.threshold]
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field = ["host.id"]
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value = 20
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