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P4T12ICK
49 lines
2.3 KiB
YAML
49 lines
2.3 KiB
YAML
name: Previously Seen Cloud Provisioning Activity Sources - Update
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id: 9830abb9-be80-4563-b232-09bf1f628cf3
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version: 1
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date: '2020-08-20'
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author: David Dorsey, Splunk
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type: Baseline
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datamodel:
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- Change
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description: This returns the first and last times seen for every IP address (along
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with its physical location) previously associated with cloud-provisioning activity
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within the last day. Cloud provisioning is broadly defined as any event that runs
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or creates something. It then updates this information with historical data and
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filters out locations that have not been seen within the specified time window.
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This updated table is then cached.
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search: '| tstats earliest(_time) as firstTimeSeen, latest(_time) as lastTimeSeen
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from datamodel=Change where (All_Changes.action=started OR All_Changes.action=created)
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All_Changes.status=success by All_Changes.src | `drop_dm_object_name("All_Changes")`
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| iplocation src | where isnotnull(Country) | table src, firstTimeSeen, lastTimeSeen,
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City, Country, Region | inputlookup previously_seen_cloud_provisioning_activity_sources
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append=t | stats min(firstTimeSeen) as firstTimeSeen, max(lastTimeSeen) as lastTimeSeen
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by src, City, Country, Region | where lastTimeSeen > relative_time(now(), `previously_seen_cloud_provisioning_activity_forget_window`)
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| eventstats min(firstTimeSeen) as globalFirstTime | eval enough_data = if(globalFirstTime
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<= relative_time(now(), "-7d@d"), 1, 0) | table src, City, Country, Region, firstTimeSeen,
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lastTimeSeen, enough_data | outputlookup previously_seen_cloud_provisioning_activity_sources'
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how_to_implement: You must be ingesting Cloud infrastructure logs from your cloud
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provider.
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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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- Suspicious Cloud Provisioning Activities
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deployments:
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- Daily Cache Updates
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detections:
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- Cloud Provisioning Activity From Previously Unseen IP Address
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- Cloud Provisioning Activity From Previously Unseen City
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- Cloud Provisioning Activity From Previously Unseen Country
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- Cloud Provisioning Activity From Previously Unseen Region
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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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- All_Changes.action
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- All_Changes.src
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- All_Changes.status
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security_domain: network
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