Justin Ibarra
46d5e37b76
* min_stack all rules to 8.3 * bump date Co-authored-by: Mika Ayenson <mika.ayenson@elastic.co>
53 lines
1.8 KiB
TOML
53 lines
1.8 KiB
TOML
[metadata]
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creation_date = "2021/01/05"
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maturity = "production"
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min_stack_comments = "New fields added: required_fields, related_integrations, setup"
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min_stack_version = "8.3.0"
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updated_date = "2022/08/24"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies the use of the built-in networksetup command to configure webproxy settings. This may indicate an attempt to
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hijack web browser traffic for credential access via traffic sniffing or redirection.
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"""
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false_positives = ["Legitimate WebProxy Settings Modification"]
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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 = "WebProxy Settings Modification"
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references = [
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"https://unit42.paloaltonetworks.com/mac-malware-steals-cryptocurrency-exchanges-cookies/",
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"https://objectivebythesea.com/v2/talks/OBTS_v2_Zohar.pdf",
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]
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risk_score = 47
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rule_id = "10a500bb-a28f-418e-ba29-ca4c8d1a9f2f"
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severity = "medium"
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tags = ["Elastic", "Host", "macOS", "Threat Detection", "Credential Access"]
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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 : process and event.type : start and
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process.name : networksetup and process.args : (("-setwebproxy" or "-setsecurewebproxy" or "-setautoproxyurl") and not (Bluetooth or off)) and
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not process.parent.executable : ("/Library/PrivilegedHelperTools/com.80pct.FreedomHelper" or
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"/Applications/Fiddler Everywhere.app/Contents/Resources/app/out/WebServer/Fiddler.WebUi" or
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"/usr/libexec/xpcproxy")
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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 = "T1539"
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name = "Steal Web Session Cookie"
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reference = "https://attack.mitre.org/techniques/T1539/"
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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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