defense_evasion_gcp_virtual_private_cloud_route_deleted.toml

[metadata]
creation_date = "2020/09/22"
integration = ["gcp"]
maturity = "production"
updated_date = "2024/05/21"

[rule]
author = ["Elastic"]
description = """
Identifies when a Virtual Private Cloud (VPC) route is deleted in Google Cloud Platform (GCP). Google Cloud routes
define the paths that network traffic takes from a virtual machine (VM) instance to other destinations. These
destinations can be inside a Google VPC network or outside it. An adversary may delete a route in order to impact the
flow of network traffic in their target's cloud environment.
"""
false_positives = [
    """
    Virtual Private Cloud routes may be deleted by system administrators. Verify that the configuration change was
    expected. Exceptions can be added to this rule to filter expected behavior.
    """,
]
index = ["filebeat-*", "logs-gcp*"]
language = "kuery"
license = "Elastic License v2"
name = "GCP Virtual Private Cloud Route Deletion"
note = """## Setup

The GCP Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule."""
references = ["https://cloud.google.com/vpc/docs/routes", "https://cloud.google.com/vpc/docs/using-routes"]
risk_score = 47
rule_id = "a17bcc91-297b-459b-b5ce-bc7460d8f82a"
severity = "medium"
tags = [
    "Domain: Cloud",
    "Data Source: GCP",
    "Data Source: Google Cloud Platform",
    "Use Case: Configuration Audit",
    "Tactic: Defense Evasion",
]
timestamp_override = "event.ingested"
type = "query"

query = '''
event.dataset:gcp.audit and event.action:v*.compute.routes.delete and event.outcome:success
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1562"
name = "Impair Defenses"
reference = "https://attack.mitre.org/techniques/T1562/"
[[rule.threat.technique.subtechnique]]
id = "T1562.007"
name = "Disable or Modify Cloud Firewall"
reference = "https://attack.mitre.org/techniques/T1562/007/"



[rule.threat.tactic]
id = "TA0005"
name = "Defense Evasion"
reference = "https://attack.mitre.org/tactics/TA0005/"