Azure Recovery Services Resource Deleted

[metadata]
bypass_bbr_timing = true
creation_date = "2025/10/13"
integration = ["azure"]
maturity = "production"
updated_date = "2025/10/13"

[rule]
author = ["Elastic"]
building_block_type = "default"
description = """
Identifies the deletion of Azure Recovery Services resources. Azure Recovery Services vaults contain data for copies of
VMs, workloads, servers, and other resources regarding Infrastructure as a Service (IaaS). Adversaries may delete these
recovery services to impact backup capabilities during stable operations or to inhibit disaster recovery services during
ransom-based attacks or operational disruptions.
"""
from = "now-9m"
index = ["logs-azure.activitylogs-*", "filebeat-*"]
language = "kuery"
license = "Elastic License v2"
name = "Azure Recovery Services Resource Deleted"
references = [
    "https://www.microsoft.com/en-us/security/blog/2023/07/25/storm-0501-ransomware-attacks-expanding-to-hybrid-cloud-environments/",
]
risk_score = 47
rule_id = "b8c3e5d0-8a1a-11ef-9b4a-f661ea17fbce"
severity = "medium"
tags = [
    "Domain: Cloud",
    "Domain: Storage",
    "Data Source: Azure",
    "Data Source: Azure Activity Logs",
    "Use Case: Threat Detection",
    "Tactic: Impact",
    "Resources: Investigation Guide",
    "Rule Type: BBR",
]
timestamp_override = "event.ingested"
type = "query"

query = '''
event.dataset:azure.activitylogs and
    azure.activitylogs.operation_name:MICROSOFT.RECOVERYSERVICES/*/DELETE and
    event.outcome:(Success or success)
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1490"
name = "Inhibit System Recovery"
reference = "https://attack.mitre.org/techniques/T1490/"


[rule.threat.tactic]
id = "TA0040"
name = "Impact"
reference = "https://attack.mitre.org/tactics/TA0040/"