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P4T12ICK
34 lines
1.2 KiB
YAML
34 lines
1.2 KiB
YAML
name: Previously Seen EC2 Modifications By User
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id: 4d69091b-d975-4267-85df-888bd41034eb
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version: 1
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date: '2018-04-05'
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author: David Dorsey, Splunk
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type: Baseline
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datamodel: []
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description: This search builds a table of previously seen ARNs that have launched
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a EC2 instance.
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search: '`cloudtrail` `ec2_modification_api_calls` errorCode=success | spath output=arn
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userIdentity.arn | stats earliest(_time) as firstTime latest(_time) as lastTime
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by arn | outputlookup previously_seen_ec2_modifications_by_user | stats count'
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how_to_implement: You must install the AWS App for Splunk (version 5.1.0 or later)
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and Splunk Add-on for AWS version (4.4.0 or later), then configure your CloudTrail
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inputs. To add or remove APIs that modify an EC2 instance, edit the macro `ec2_modification_api_calls`.
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known_false_positives: none
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references: []
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tags:
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analytic_story:
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- Unusual AWS EC2 Modifications
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deployments:
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- Daily Cache Updates
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detections:
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- EC2 Instance Modified With Previously Unseen User
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product:
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- Splunk Enterprise
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- Splunk Enterprise Security
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- Splunk Cloud
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required_fields:
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- _time
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- userIdentity.arn
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- errorCode
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security_domain: network
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