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sigma-rules/rules/integrations/aws/impact_rds_instance_cluster_deletion.toml
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Isai dfa41821ef [Rule Tuning] AWS RDS Instance/Cluster Deletion (#1916)
* add RDS instance deletion to aws rule

I've added to this rule to improve coverage. Currently we detect creation and stopping of RDS clusters and instances. But, we only detect for the deletion of clusters, not instances. This adds the deletion of RDS instances to the detection.

* Update rules/integrations/aws/impact_rds_instance_cluster_deletion.toml

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

(cherry picked from commit 9640ecb3fe)
2022-04-10 19:35:26 +00:00

64 lines
2.2 KiB
TOML

[metadata]
creation_date = "2020/05/21"
maturity = "production"
updated_date = "2022/04/07"
integration = "aws"
[rule]
author = ["Elastic"]
description = """
Identifies the deletion of an Amazon Relational Database Service (RDS) Aurora database cluster, global database
cluster, or database instance.
"""
false_positives = [
"""
Clusters or instances may be deleted by a system administrator. Verify whether the user identity, user agent, and/or hostname
should be making changes in your environment. Cluster or instance deletions by unfamiliar users or hosts should be
investigated. If known behavior is causing false positives, it can be exempted from the rule.
""",
]
from = "now-60m"
index = ["filebeat-*", "logs-aws*"]
interval = "10m"
language = "kuery"
license = "Elastic License v2"
name = "AWS Deletion of RDS Instance or Cluster"
note = """## Config
The AWS Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule."""
references = [
"https://awscli.amazonaws.com/v2/documentation/api/latest/reference/rds/delete-db-cluster.html",
"https://docs.aws.amazon.com/AmazonRDS/latest/APIReference/API_DeleteDBCluster.html",
"https://awscli.amazonaws.com/v2/documentation/api/latest/reference/rds/delete-global-cluster.html",
"https://docs.aws.amazon.com/AmazonRDS/latest/APIReference/API_DeleteGlobalCluster.html",
"https://awscli.amazonaws.com/v2/documentation/api/latest/reference/rds/delete-db-instance.html",
"https://docs.aws.amazon.com/AmazonRDS/latest/APIReference/API_DeleteDBInstance.html"
]
risk_score = 47
rule_id = "9055ece6-2689-4224-a0e0-b04881e1f8ad"
severity = "medium"
tags = ["Elastic", "Cloud", "AWS", "Continuous Monitoring", "SecOps", "Asset Visibility"]
timestamp_override = "event.ingested"
type = "query"
query = '''
event.dataset:aws.cloudtrail and event.provider:rds.amazonaws.com and event.action:(DeleteDBCluster or DeleteGlobalCluster or DeleteDBInstance)
and event.outcome:success
'''
[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1485"
name = "Data Destruction"
reference = "https://attack.mitre.org/techniques/T1485/"
[rule.threat.tactic]
id = "TA0040"
name = "Impact"
reference = "https://attack.mitre.org/tactics/TA0040/"