Files
sigma-rules/rules/aws/impact_ec2_disable_ebs_encryption.toml
T
Justin Ibarra 97ee8cc9ac Refresh beats and ecs schemas and default to use latest to validate (#570)
* Refresh beats and ecs schemas and default to use latest to validate
* remove incorrect ecs_version from zoom rule
* remove stale ecs_version from rules
2020-12-01 13:24:20 -09:00

55 lines
1.8 KiB
TOML

[metadata]
creation_date = "2020/06/05"
maturity = "production"
updated_date = "2020/10/26"
[rule]
author = ["Elastic"]
description = """
Identifies disabling of Amazon Elastic Block Store (EBS) encryption by default in the current region. Disabling
encryption by default does not change the encryption status of your existing volumes.
"""
false_positives = [
"""
Disabling encryption may be done by a system or network administrator. Verify whether the user identity, user agent,
and/or hostname should be making changes in your environment. Disabling encryption 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"
name = "AWS EC2 Encryption Disabled"
note = "The AWS Filebeat module must be enabled to use this rule."
references = [
"https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSEncryption.html",
"https://awscli.amazonaws.com/v2/documentation/api/latest/reference/ec2/disable-ebs-encryption-by-default.html",
"https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_DisableEbsEncryptionByDefault.html",
]
risk_score = 47
rule_id = "bb9b13b2-1700-48a8-a750-b43b0a72ab69"
severity = "medium"
tags = ["Elastic", "Cloud", "AWS", "Continuous Monitoring", "SecOps", "Data Protection"]
type = "query"
query = '''
event.action:DisableEbsEncryptionByDefault and event.dataset:aws.cloudtrail and event.provider:ec2.amazonaws.com and event.outcome:success
'''
[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1492"
name = "Stored Data Manipulation"
reference = "https://attack.mitre.org/techniques/T1492/"
[rule.threat.tactic]
id = "TA0040"
name = "Impact"
reference = "https://attack.mitre.org/tactics/TA0040/"