Justin Ibarra
59da2da474
* add unit tests to ensure host type and platform are included * add host.os.name 'linux' to all linux rules * add host.os.name macos to mac rules * add host.os.name to windows rules; fix linux dates * update from host.os.name to host.os.type Co-authored-by: brokensound77 <brokensound77@users.noreply.github.com> Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
54 lines
1.6 KiB
TOML
54 lines
1.6 KiB
TOML
[metadata]
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creation_date = "2021/01/15"
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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 = "2023/02/22"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies changes to the SoftwareUpdate preferences using the built-in defaults command. Adversaries may abuse this in
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an attempt to disable security updates.
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"""
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false_positives = ["Authorized SoftwareUpdate Settings Changes"]
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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 = "SoftwareUpdate Preferences Modification"
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references = ["https://blog.checkpoint.com/2017/07/13/osxdok-refuses-go-away-money/"]
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risk_score = 47
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rule_id = "f683dcdf-a018-4801-b066-193d4ae6c8e5"
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severity = "medium"
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tags = ["Elastic", "Host", "macOS", "Threat Detection", "Defense Evasion"]
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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 or process_started) and
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process.name:defaults and
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process.args:(write and "-bool" and (com.apple.SoftwareUpdate or /Library/Preferences/com.apple.SoftwareUpdate.plist) and not (TRUE or true))
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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 = "T1562"
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name = "Impair Defenses"
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reference = "https://attack.mitre.org/techniques/T1562/"
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[[rule.threat.technique.subtechnique]]
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id = "T1562.001"
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name = "Disable or Modify Tools"
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reference = "https://attack.mitre.org/techniques/T1562/001/"
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[rule.threat.tactic]
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id = "TA0005"
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name = "Defense Evasion"
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reference = "https://attack.mitre.org/tactics/TA0005/"
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