Analytics Alerts

Browse the Cortex analytics alert reference.

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1 alert match the current filters. technique: T1550 ✕

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  • Multiple users authenticated with weak NTLM to a host Informational Identity Analytics

    Multiple user accounts authenticated to a host via NTLMv1 or LM authentication for the first time in the past 30 days. This may be a result of an NTLM downgrade attack A downgrade attack may force the client to authenticate with a weaker hash/protocol (such as NTLMv1 or even LM) instead of NTLMv2.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    1 Hour
    Deduplication:
    1 Day
    ATT&CK tactics: Lateral Movement (TA0008)
    ATT&CK techniques: Use Alternate Authentication Material (T1550)
    Required data: XDR Agent
    Attacker's goals: The attacker attempts to gain access to the accounts.
    Investigative actions: Audit all login events with a weaker protocol and review any anomalous usage. Investigate the mentioned host for additional suspicious activity.