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AWS DisassociateAddress [splunk-awscloudtrail]

Threat identifier for AWS API call DisassociateAddress, threat actors can initiate a Elastic IP Hijacking attack by querying for all IP addresses and disassociate an existing Elastic IP assign it to a new host

View Source

Detection Logic

`get_cloud_data` `get_cloud_data_aws` TERM(DisassociateAddress)
| table _time, host, user, account, region, src_ip, http_user_agent, access_key, user, user_id, identity_type, role, event_name, event_category, cloud_service, request_parameters, response, mfa_enabled, permissions, identity, action, resource_id, object_id
| bin span=1s
| stats values(*) as * by _time, src_ip
| where match(event_name, "(?i)DisassociateAddress")
| lookup dnslookup clientip as src_ip OUTPUT clienthost as src_dns
| iplocation prefix="src_" src_ip
| rename src_Country as src_country

Field Validations

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