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27 lines
887 B
YAML
27 lines
887 B
YAML
title: AWS EC2 Download Userdata
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id: 26ff4080-194e-47e7-9889-ef7602efed0c
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status: experimental
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description: Detects bulk downloading of User Data associated with AWS EC2 instances. Instance User Data may include installation scripts and hard-coded secrets for deployment.
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author: faloker
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date: 2020/02/11
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modified: 2020/09/01
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references:
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- https://github.com/RhinoSecurityLabs/pacu/blob/master/modules/ec2__download_userdata/main.py#L24
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logsource:
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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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selection_requesttype:
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- requestParameters.attribute: userData
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selection_eventname:
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- eventName: DescribeInstanceAttribute
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timeframe: 30m
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condition: all of them | count() > 10
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falsepositives:
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- Assets management software like device42
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level: medium
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tags:
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- attack.exfiltration
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- attack.t1020
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