Jonhnathan
b4c84e8a40
* Update Tags * Bump updated date separately to be easy to revert if needed * Update resource_development_ml_linux_anomalous_compiler_activity.toml * Apply changes from the discussion * Update persistence_init_d_file_creation.toml * Update defense_evasion_timestomp_sysmon.toml * Update defense_evasion_application_removed_from_blocklist_in_google_workspace.toml * Update missing Tactic tags * Update unit tests to match new tags * Add missing IG tags * Delete okta_threat_detected_by_okta_threatinsight.toml * Update command_and_control_google_drive_malicious_file_download.toml * Update persistence_rc_script_creation.toml * Mass bump * Update persistence_shell_activity_by_web_server.toml * . --------- Co-authored-by: Mika Ayenson <Mika.ayenson@elastic.co> Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
54 lines
1.9 KiB
TOML
54 lines
1.9 KiB
TOML
[metadata]
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creation_date = "2021/01/05"
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integration = ["endpoint"]
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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 = "2023/06/22"
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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 = ["Domain: Endpoint", "OS: macOS", "Use Case: Threat Detection", "Tactic: 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 host.os.type:macos 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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