[metadata]
creation_date = "2020/08/31"
maturity = "production"
updated_date = "2020/12/15"

[rule]
author = ["Elastic"]
description = """
Identifies modifications to a Key Vault in Azure. The Key Vault is a service that safeguards encryption keys and secrets
like certificates, connection strings, and passwords. Because this data is sensitive and business critical, access to
key vaults should be secured to allow only authorized applications and users.
"""
false_positives = [
    """
    Key vault modifications may be done by a system or network administrator. Verify whether the username, hostname,
    and/or resource name should be making changes in your environment. Key vault modifications from unfamiliar users or
    hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
    """,
]
from = "now-25m"
index = ["filebeat-*", "logs-azure*"]
language = "kuery"
license = "Elastic License"
name = "Azure Key Vault Modified"
note = "The Azure Filebeat module must be enabled to use this rule."
references = [
    "https://docs.microsoft.com/en-us/azure/key-vault/general/basic-concepts",
    "https://docs.microsoft.com/en-us/azure/key-vault/general/secure-your-key-vault",
]
risk_score = 47
rule_id = "792dd7a6-7e00-4a0a-8a9a-a7c24720b5ec"
severity = "medium"
tags = ["Elastic", "Cloud", "Azure", "Continuous Monitoring", "SecOps", "Data Protection"]
type = "query"

query = '''
event.dataset:azure.activitylogs and azure.activitylogs.operation_name:MICROSOFT.KEYVAULT/VAULTS/WRITE and event.outcome:(Success or success)
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1552"
name = "Unsecured Credentials"
reference = "https://attack.mitre.org/techniques/T1552/"
[[rule.threat.technique.subtechnique]]
id = "T1552.001"
name = "Credentials In Files"
reference = "https://attack.mitre.org/techniques/T1552/001/"


[rule.threat.tactic]
id = "TA0006"
name = "Credential Access"
reference = "https://attack.mitre.org/tactics/TA0006/"

