security-content/baselines/previously_seen_ec2_amis.yml at develop · jwindley-splunk/security-content · GitHub

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baseline:
  splunk:
    schedule:
      cron_schedule: ''
      earliest_time: -90d@d
      latest_time: -10m@m
    search: sourcetype=aws:cloudtrail eventName=RunInstances errorCode=success | rename
      requestParameters.instancesSet.items{}.imageId as amiID | stats earliest(_time)
      as firstTime latest(_time) as lastTime by amiID | outputlookup previously_seen_ec2_amis.csv
      | stats count
creation_date: '2018-03-12'
data_metadata:
  data_source:
    - AWS CloudTrail logs
  data_sourcetypes:
    - aws:cloudtrail
  providing_technologies:
    - AWS
description: This search builds a table of previously seen AMIs used to launch EC2
  instances
eli5: In this support search, we create a table of the earliest and latest time that
  a specific AMI ID has been seen. This table is then outputted to a csv file.
how_to_implement: You must install the AWS App for Splunk (version 5.1.0 or later)
  and Splunk Add-on for AWS version (4.4.0 or later), then configure your CloudTrail
  inputs.
id: bb1bd99d-1e93-45f1-9571-cfed42d372b9
known_false_positives: ''
maintainers:
  - company: Splunk
    email: davidd@splunk.com
    name: David Dorsey
modification_date: '2018-03-12'
name: Previously Seen EC2 AMIs
original_authors:
  - company: Splunk
    email: davidd@splunk.com
    name: David Dorsey
spec_version: 2
type: splunk
version: '1.0'