sigma-rules/rules_building_block/defense_evasion_aws_rds_snapshot_created.toml

[metadata]
bypass_bbr_timing = true
creation_date = "2024/06/22"
integration = ["aws"]
maturity = "production"
updated_date = "2024/06/25"

[rule]
author = ["Elastic"]
building_block_type = "default"
description = """
Identifies when an AWS RDS DB Snapshot is created. This can be used to evade defenses by allowing an attacker to bypass access controls
or cover their tracks by reverting an instance to a previous state. This is a [building block
rule](https://www.elastic.co/guide/en/security/current/building-block-rule.html) and does not generate alerts on
its own. It is meant to be used for correlation with other rules to detect suspicious activity. To generate alerts, create a
rule that uses this signal as a building block.
"""
false_positives = [
    """
    Legitimate manual or automated snapshots created for backups can trigger this rule. Ensure that the snapshots are authorized and align with your organization's policies.
    """,
]
from = "now-60m"
index = ["filebeat-*", "logs-aws.cloudtrail-*"]
interval = "10m"
language = "kuery"
license = "Elastic License v2"
name = "AWS RDS DB Snapshot Created"
risk_score = 21
rule_id = "68c5c9d1-38e5-48bb-b1b2-8b5951d39738"
severity = "low"
tags = [
    "Domain: Cloud",
    "Data Source: AWS",
    "Data Source: Amazon Web Services",
    "Data Source: AWS RDS",
    "Use Case: Asset Visibility",
    "Tactic: Defense Evasion",
    "Rule Type: BBR",
]
timestamp_override = "event.ingested"
type = "query"

query = '''
event.dataset: "aws.cloudtrail" and event.provider: "rds.amazonaws.com" 
    and event.action: ("CreateDBSnapshot" or "CreateDBClusterSnapshot") and event.outcome: "success" 
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1578"
name = "Modify Cloud Compute Infrastructure"
reference = "https://attack.mitre.org/techniques/T1578/"
[[rule.threat.technique.subtechnique]]
id = "T1578.001"
name = "Create Snapshot"
reference = "https://attack.mitre.org/techniques/T1578/001/"


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