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AWS SES Enumeration via Long-Term Access Key

Detects enumeration of Amazon Simple Email Service (SES) resources using long-term IAM access keys (AKIA* prefix). Long-term access keys are associated with IAM users and are the credential type most commonly…

Description

Detects enumeration of Amazon Simple Email Service (SES) resources using long-term IAM access keys (AKIA* prefix). Long-term access keys are associated with IAM users and are the credential type most commonly exfiltrated from repositories, configuration files, and environment variables. An adversary who obtains a long-term key may enumerate SES to discover verified email identities, sending quotas, and DKIM/MAIL FROM domain configurations as a precursor to phishing or spam campaigns launched from the compromised account's verified domains.

Detection logic

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Detection requirements

Platform
IaaSIdentity ProviderOffice SuiteSaaS

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source category
event_index

Known benign triggers

  • Automated monitoring scripts, infrastructure inventory tools, or CI/CD pipelines that use long-term IAM keys to audit SES configuration will trigger this rule. Migrate automation to IAM roles with short-lived credentials; long-term keys used for SES management are a security anti-pattern regardless of this alert.

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