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sigma-rules/rules/aws/impact_ec2_disable_ebs_encryption.toml
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seth-goodwin 2065af89b1 [Rule Tuning] Tag Categorization Updates (#380)
* Add new categorization tags

* Change updated_date to 2020/10/26

Co-authored-by: Ross Wolf <31489089+rw-access@users.noreply.github.com>, @bm11100
2020-10-26 13:50:45 -05:00

56 lines
1.9 KiB
TOML

[metadata]
creation_date = "2020/06/05"
ecs_version = ["1.6.0"]
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/"