Justin Ibarra
66 lines
1.8 KiB
TOML
66 lines
1.8 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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Halfbaked is a malware family used to establish persistence in a contested network. This rule detects a network activity
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algorithm leveraged by Halfbaked implant beacons for 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 exclude systems, either 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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index = ["packetbeat-*"]
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language = "lucene"
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license = "Elastic License v2"
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name = "Halfbaked 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://www.fireeye.com/blog/threat-research/2017/04/fin7-phishing-lnk.html",
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"https://attack.mitre.org/software/S0151/",
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]
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risk_score = 73
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rule_id = "2e580225-2a58-48ef-938b-572933be06fe"
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severity = "high"
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tags = ["Elastic", "Network", "Threat Detection", "Command and Control"]
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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 network.protocol:http AND
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network.transport:tcp AND url.full:/http:\/\/[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}\/cd/ AND
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destination.port:(53 OR 80 OR 8080 OR 443)
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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 = "T1071"
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name = "Application Layer Protocol"
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reference = "https://attack.mitre.org/techniques/T1071/"
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[[rule.threat.technique]]
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id = "T1568"
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name = "Dynamic Resolution"
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reference = "https://attack.mitre.org/techniques/T1568/"
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[[rule.threat.technique.subtechnique]]
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id = "T1568.002"
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name = "Domain Generation Algorithms"
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reference = "https://attack.mitre.org/techniques/T1568/002/"
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[rule.threat.tactic]
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id = "TA0011"
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name = "Command and Control"
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reference = "https://attack.mitre.org/tactics/TA0011/"
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