Andrew Pease
65 lines
1.9 KiB
TOML
65 lines
1.9 KiB
TOML
[metadata]
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creation_date = "2020/07/06"
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maturity = "production"
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updated_date = "2021/05/10"
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[rule]
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author = ["Elastic"]
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description = """
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Cobalt Strike is a threat emulation platform commonly modified and used by adversaries to conduct network attack and
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exploitation campaigns. This rule detects a network activity algorithm leveraged by Cobalt Strike implant beacons for
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command and control.
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"""
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false_positives = [
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"""
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This rule should be tailored to either exclude systems, as sources or destinations, in which this behavior is
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expected.
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""",
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]
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from = "now-9m"
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index = ["auditbeat-*", "filebeat-*", "packetbeat-*", "logs-endpoint.events.*"]
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language = "lucene"
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license = "Elastic License v2"
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name = "Cobalt Strike Command and Control Beacon"
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note = """## Threat intel
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This activity has been observed in FIN7 campaigns."""
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references = [
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"https://blog.morphisec.com/fin7-attacks-restaurant-industry",
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"https://www.fireeye.com/blog/threat-research/2017/04/fin7-phishing-lnk.html",
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]
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risk_score = 73
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rule_id = "cf53f532-9cc9-445a-9ae7-fced307ec53c"
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severity = "high"
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tags = ["Elastic", "Network", "Threat Detection", "Command and Control", "Host"]
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timestamp_override = "event.ingested"
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type = "query"
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query = '''
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event.category:(network OR network_traffic) AND type:(tls OR http) AND network.transport:tcp AND destination.domain:/[a-z]{3}.stage.[0-9]{8}\..*/
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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 = "Application Layer Protocol"
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reference = "https://attack.mitre.org/techniques/T1071/"
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id = "T1071"
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[[rule.threat.technique]]
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name = "Dynamic Resolution"
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reference = "https://attack.mitre.org/techniques/T1568/"
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id = "T1568"
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[[rule.threat.technique.subtechnique]]
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name = "Domain Generation Algorithms"
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reference = "https://attack.mitre.org/techniques/T1568/002/"
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id = "T1568.002"
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[rule.threat.tactic]
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name = "Command and Control"
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reference = "https://attack.mitre.org/tactics/TA0011/"
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id = "TA0011"
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