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[New rule] AWS Secrets Manager and System Manager

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Co-authored-by: Seth Goodwin <58222969+seth-goodwin@users.noreply.github.com>
Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com>
Co-authored-by: Ross Wolf <31489089+rw-access@users.noreply.github.com>
Co-authored-by: Craig Chamberlain <randomuserid@users.noreply.github.com>
Co-authored-by: Ross Wolf <31489089+rw-access@users.noreply.github.com>
This commit is contained in:
Samirbous
2020-07-08 20:37:47 +02:00
committed by Ross Wolf
parent 29a92f8976
commit 676be30199
3 changed files with 143 additions and 0 deletions
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NOTICE.txt
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@@ -32,3 +32,31 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
---
This product bundles rules based on https://github.com/FSecureLABS/leonidas
which is available under a "MIT" license. The files based on this license are:
- credential_access_secretsmanager_getsecretvalue.toml
MIT License
Copyright (c) 2020 F-Secure LABS
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
rules/aws/credential_access_secretsmanager_getsecretvalue.toml
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[metadata]
creation_date = "2020/07/06"
ecs_version = ["1.5.0"]
maturity = "production"
updated_date = "2020/07/06"
[rule]
author = ["Nick Jones", "Elastic"]
description = """
An adversary may attempt to access the secrets in secrets manager to steal certificates, credentials, or other sensitive
material
"""
false_positives = [
"""
Verify whether the user identity, user agent, and/or hostname should be using GetSecretString API for the specified
SecretId. If known behavior is causing false positives, it can be exempted from the rule.
""",
]
from = "now-60m"
index = ["filebeat-*"]
interval = "10m"
language = "kuery"
license = "Elastic License"
name = "AWS Access Secret in Secrets Manager"
references = [
"https://docs.aws.amazon.com/secretsmanager/latest/apireference/API_GetSecretValue.html",
"http://detectioninthe.cloud/credential_access/access_secret_in_secrets_manager/",
]
risk_score = 21
rule_id = "a00681e3-9ed6-447c-ab2c-be648821c622"
severity = "low"
tags = ["AWS", "Elastic"]
type = "query"
query = '''
event.dataset:aws.cloudtrail and event.provider:secretsmanager.amazonaws.com and event.action:GetSecretValue
'''
[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1528"
name = "Steal Application Access Token"
reference = "https://attack.mitre.org/techniques/T1528/"
[rule.threat.tactic]
id = "TA0006"
name = "Credential Access"
reference = "https://attack.mitre.org/tactics/TA0006/"
rules/aws/execution_via_system_manager.toml
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[metadata]
creation_date = "2020/07/06"
ecs_version = ["1.5.0"]
maturity = "production"
updated_date = "2020/07/06"
[rule]
author = ["Elastic"]
description = """
Identifies the execution of commands and scripts via System Manager. Execution methods such as RunShellScript,
RunPowerShellScript, and alike can be abused by an authenticated attacker to install a backdoor or to interact with a
compromised instance via reverse-shell using system only commands.
"""
false_positives = [
"""
Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
Suspicious commands from 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-*"]
interval = "10m"
language = "kuery"
license = "Elastic License"
name = "AWS Execution via System Manager"
references = ["https://docs.aws.amazon.com/systems-manager/latest/userguide/ssm-plugins.html"]
risk_score = 21
rule_id = "37b211e8-4e2f-440f-86d8-06cc8f158cfa"
severity = "low"
tags = ["AWS", "Elastic"]
type = "query"
query = '''
event.module:aws and event.dataset:aws.cloudtrail and event.provider:ssm.amazonaws.com and event.action:SendCommand and event.outcome:success
'''
[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1064"
name = "Scripting"
reference = "https://attack.mitre.org/techniques/T1064/"
[rule.threat.tactic]
id = "TA0002"
name = "Execution"
reference = "https://attack.mitre.org/tactics/TA0002/"
[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1086"
name = "PowerShell"
reference = "https://attack.mitre.org/techniques/T1086/"
[rule.threat.tactic]
id = "TA0002"
name = "Execution"
reference = "https://attack.mitre.org/tactics/TA0002/"