Brent Murphy
65 lines
1.9 KiB
TOML
65 lines
1.9 KiB
TOML
[metadata]
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creation_date = "2020/07/06"
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ecs_version = ["1.6.0"]
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maturity = "production"
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updated_date = "2020/09/03"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies the execution of commands and scripts via System Manager. Execution methods such as RunShellScript,
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RunPowerShellScript, and alike can be abused by an authenticated attacker to install a backdoor or to interact with a
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compromised instance via reverse-shell using system only commands.
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"""
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false_positives = [
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"""
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Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
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Suspicious commands from unfamiliar users or hosts should be investigated. If known behavior is causing false
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positives, it can be exempted from the rule.
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""",
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]
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from = "now-60m"
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index = ["filebeat-*", "logs-aws*"]
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interval = "10m"
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language = "kuery"
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license = "Elastic License"
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name = "AWS Execution via System Manager"
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note = "The AWS Filebeat module must be enabled to use this rule."
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references = ["https://docs.aws.amazon.com/systems-manager/latest/userguide/ssm-plugins.html"]
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risk_score = 21
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rule_id = "37b211e8-4e2f-440f-86d8-06cc8f158cfa"
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severity = "low"
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tags = ["AWS", "Elastic", "SecOps", "Logging", "Continuous Monitoring"]
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type = "query"
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query = '''
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event.module:aws and event.dataset:aws.cloudtrail and event.provider:ssm.amazonaws.com and event.action:SendCommand and event.outcome:success
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1064"
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name = "Scripting"
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reference = "https://attack.mitre.org/techniques/T1064/"
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[rule.threat.tactic]
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id = "TA0002"
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name = "Execution"
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reference = "https://attack.mitre.org/tactics/TA0002/"
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1086"
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name = "PowerShell"
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reference = "https://attack.mitre.org/techniques/T1086/"
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[rule.threat.tactic]
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id = "TA0002"
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name = "Execution"
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reference = "https://attack.mitre.org/tactics/TA0002/"
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