Justin Ibarra
6bdfddac8e
* Expand timestamp_override tests * removed timestamp_override from eql sequence rules * add config entry for eql rules with beats index and t_o * add timestamp_override to missing fields
71 lines
2.2 KiB
TOML
71 lines
2.2 KiB
TOML
[metadata]
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creation_date = "2022/03/01"
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maturity = "production"
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min_stack_comments = "The field `file.Ext.header_bytes` was not introduced until 7.15"
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min_stack_version = "7.15.0"
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updated_date = "2022/03/31"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies remote access to the registry to potentially dump credential data from the SAM registry hive in preparation
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for credential access and privileges elevation.
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"""
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from = "now-9m"
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index = ["winlogbeat-*", "logs-system.*", "logs-endpoint.events.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Potential Remote Credential Access via Registry"
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note = """## Config
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This rule uses Elastic Endpoint file creation and System Integration events for correlation. Both data should be
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collected from the host for this detection to work.
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"""
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references = ["https://github.com/SecureAuthCorp/impacket/blob/master/examples/secretsdump.py"]
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risk_score = 73
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rule_id = "850d901a-2a3c-46c6-8b22-55398a01aad8"
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severity = "high"
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tags = ["Elastic", "Host", "Windows", "Threat Detection", "Lateral Movement", "Credential Access"]
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type = "eql"
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query = '''
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sequence by host.id, user.id with maxspan=1m
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[authentication where
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event.outcome == "success" and
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winlog.logon.type == "Network" and not user.name == "ANONYMOUS LOGON" and
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not user.domain == "NT AUTHORITY" and source.ip != "127.0.0.1" and source.ip !="::1"]
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[file where event.action == "creation" and process.name : "svchost.exe" and
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file.Ext.header_bytes : "72656766*" and user.id : "S-1-5-21-*" and file.size >= 30000]
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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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name = "OS Credential Dumping"
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id = "T1003"
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reference = "https://attack.mitre.org/techniques/T1003/"
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[[rule.threat.technique.subtechnique]]
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name = "Security Account Manager"
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id = "T1003.002"
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reference = "https://attack.mitre.org/techniques/T1003/002/"
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[rule.threat.tactic]
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name = "Credential Access"
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id = "TA0006"
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reference = "https://attack.mitre.org/tactics/TA0006/"
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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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name = "Remote Services"
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id = "T1021"
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reference = "https://attack.mitre.org/techniques/T1021/"
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[rule.threat.tactic]
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name = "Lateral Movement"
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id = "TA0008"
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reference = "https://attack.mitre.org/tactics/TA0008/"
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