Analytics Alerts

Browse the Cortex analytics alert reference.

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1 alert match the current filters. tactic: TA0006 ✕ technique: T1558 ✕

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  • A user sent multiple TGT requests to irregular service Low Identity Analytics 2 variations

    A user sent multiple TGT requests to services other than KRBTGT and KADMIN. This is typically a sign of a Kerberoasting attack.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    10 Minutes
    Deduplication:
    1 Day
    ATT&CK tactics: Credential Access (TA0006)
    ATT&CK techniques: Steal or Forge Kerberos Tickets: Kerberoasting (T1558.003)
    Required data: Windows Event Collector XDR Agent with eXtended Threat Hunting (XTH)
    Attacker's goals: Crack account credentials by obtaining an easy-to-crack Kerberos ticket.
    Investigative actions: Check who used the host at the time of the alert, to rule out a benign service or tool requesting weak Kerberos encryption.

    Variations

    A user sent an excessive number of TGT requests to irregular services

    Medium overridden

    A user sent multiple TGT requests to services other than KRBTGT and KADMIN. This is typically a sign of a Kerberoasting attack. overridden

    A user sent a TGT request to irregular service

    Informational overridden

    A user sent a TGT request to a service other than KRBTGT and KADMIN. This might indicate an attempt to perform a Kerberoasting attack. overridden