Analytics Alerts

Browse the Cortex analytics alert reference.

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1 alert match the current filters. tactic: TA0005 ✕

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  • Exchange malware filter policy removed Low Identity Threat Module, SaaS Threat Detection, Email

    A user removed an Exchange malware filter policy, which may prevent the detection of malware.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Day
    ATT&CK tactics: Defense Evasion (TA0005)
    ATT&CK techniques: Impair Defenses (T1562) Impair Defenses: Disable or Modify Tools (T1562.001)
    Required data: Office 365 Audit
    Attacker's goals: An attacker is attempting to evade detection.
    Investigative actions: Follow further actions done by the account. Verify that the configuration change was expected. Look for signs that the user account is compromised (e.g. abnormal logins, unusual activity). Investigate if any other security policies have been changed or removed. Monitor for signs of malware in future messages.