Analytics Alerts

Browse the Cortex analytics alert reference.

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1 alert match the current filters. tactic: TA0007 ✕ technique: T1526 ✕

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  • Mailbox enumeration activity by Azure application Informational Cloud 1 variation

    Microsoft Graph API was used to enumerate mailboxes in Azure tenant.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    10 Minutes
    Deduplication:
    5 Days
    ATT&CK tactics: Discovery (TA0007)
    ATT&CK techniques: Cloud Service Discovery (T1526)
    Required data: Azure Audit Log Microsoft Graph Logs
    Detector tags: Microsoft Graph Activity Logs
    Attacker's goals: To extract sensitive information stored in mailboxes.
    Investigative actions: Determine which mailboxes were enumerated and whether they contained any sensitive information. Investigate the identity following actions.

    Variations

    Mailbox enumeration activity by Azure user

    Informational overridden

    Microsoft Graph API was used by a user to enumerate mailboxes. overridden