Analytics Alerts

Browse the Cortex analytics alert reference.

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1 alert match the current filters. tactic: TA0003 ✕

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  • User installed an application in Microsoft Teams via Graph API Informational Identity Threat Module, SaaS Threat Detection 1 variation

    A user who rarely uses the Graph API to install Microsoft Teams applications has installed one using it.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Day
    ATT&CK tactics: Persistence (TA0003)
    ATT&CK techniques: Cloud Application Integration (T1671)
    Required data: Microsoft Graph Logs
    Detector tags: Microsoft Teams
    Attacker's goals: Attackers may leverage Teams applications to maintain persistent access to compromised Teams accounts.
    Investigative actions: Verify the user's role and typical usage of Microsoft Graph API. Check if the user's account has recently logged in from unusual locations or devices. Review recent email and chat activity to identify any phishing or suspicious messages sent. Examine the Graph API call logs to see what actions were performed and their timestamps. Correlate with endpoint logs to detect any malware or suspicious processes running on the user's device. Check for signs of account compromise, such as password changes or MFA bypass attempts. Follow further actions done by the account.

    Variations

    User installed an application in Microsoft Teams via Graph API from a first seen ASN

    Low overridden

    A user who rarely uses the Graph API to install Microsoft Teams applications has installed one using it. overridden