Justin Ibarra
72c64de3f5
* [Rule tuning] Update rule verbiage based on docs review * fix typos Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com> * revert TI rule changes since it was deprecated Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
56 lines
2.2 KiB
TOML
56 lines
2.2 KiB
TOML
[metadata]
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creation_date = "2020/08/12"
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maturity = "production"
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updated_date = "2021/12/30"
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integration = "azure"
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[rule]
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author = ["Austin Songer"]
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description = """
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Identifies when a virtual network device is modified or deleted. This can be a network virtual
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appliance, virtual hub, or virtual router.
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"""
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false_positives = [
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"""
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Virtual Network Device modification or deletion may be performed by a system administrator. Verify
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whether the user identity, user agent, and/or hostname should be making changes in your environment.
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Virtual Network Device modification or deletion by unfamiliar users should be investigated. If known
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behavior is causing false positives, it can be exempted from the rule.
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""",
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]
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from = "now-25m"
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index = ["filebeat-*", "logs-azure*"]
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language = "kuery"
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license = "Elastic License v2"
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name = "Azure Virtual Network Device Modified or Deleted"
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note = """## Config
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The Azure Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule."""
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references = ["https://docs.microsoft.com/en-us/azure/role-based-access-control/resource-provider-operations"]
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risk_score = 21
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rule_id = "573f6e7a-7acf-4bcd-ad42-c4969124d3c0"
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severity = "low"
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tags = ["Elastic", "Cloud", "Azure", "Continuous Monitoring", "SecOps", "Network Security"]
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timestamp_override = "event.ingested"
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type = "query"
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query = '''
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event.dataset:azure.activitylogs and azure.activitylogs.operation_name:("MICROSOFT.NETWORK/NETWORKINTERFACES/TAPCONFIGURATIONS/WRITE" or
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"MICROSOFT.NETWORK/NETWORKINTERFACES/TAPCONFIGURATIONS/DELETE" or "MICROSOFT.NETWORK/NETWORKINTERFACES/WRITE" or
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"MICROSOFT.NETWORK/NETWORKINTERFACES/JOIN/ACTION" or "MICROSOFT.NETWORK/NETWORKINTERFACES/DELETE" or
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"MICROSOFT.NETWORK/NETWORKVIRTUALAPPLIANCES/DELETE" or "MICROSOFT.NETWORK/NETWORKVIRTUALAPPLIANCES/WRITE" or
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"MICROSOFT.NETWORK/VIRTUALHUBS/DELETE" or "MICROSOFT.NETWORK/VIRTUALHUBS/WRITE" or
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"MICROSOFT.NETWORK/VIRTUALROUTERS/WRITE" or "MICROSOFT.NETWORK/VIRTUALROUTERS/DELETE") and
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event.outcome:(Success or success)
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[rule.threat.tactic]
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id = "TA0040"
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name = "Impact"
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reference = "https://attack.mitre.org/tactics/TA0040/"
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