Nasreddine Bencherchali
598d29f811
chore: change tags, date, modified fields to comply with v2 of the Sigma spec. chore: update the related type from `obsoletes` to `obsolete`. chore: update local json schema to the latest version.
27 lines
885 B
YAML
27 lines
885 B
YAML
title: AWS EC2 Startup Shell Script Change
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id: 1ab3c5ed-5baf-417b-bb6b-78ca33f6c3df
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status: test
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description: Detects changes to the EC2 instance startup script. The shell script will be executed as root/SYSTEM every time the specific instances are booted up.
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references:
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- https://github.com/RhinoSecurityLabs/pacu/blob/866376cd711666c775bbfcde0524c817f2c5b181/pacu/modules/ec2__startup_shell_script/main.py#L9
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author: faloker
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date: 2020-02-12
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modified: 2022-06-07
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tags:
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- attack.execution
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- attack.t1059.001
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- attack.t1059.003
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- attack.t1059.004
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logsource:
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product: aws
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service: cloudtrail
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detection:
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selection_source:
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eventSource: ec2.amazonaws.com
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requestParameters.attribute: 'userData'
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eventName: ModifyInstanceAttribute
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condition: selection_source
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falsepositives:
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- Valid changes to the startup script
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level: high
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