Analytics Alerts

Browse the Cortex analytics alert reference.

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1 alert match the current filters. tactic: TA0001 ✕ technique: T1566 ✕

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  • Email sent using an automated system or script detected Informational Email 1 variation

    The message contains X-PHP-Script or X-PHP-Originating-Script headers, indicating it was generated by an automated PHP script or web application. While often legitimate, this behavior is frequently associated with shared hosting abuse, phishing kits, and compromised web applications.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Day
    ATT&CK tactics: Initial Access (TA0001)
    ATT&CK techniques: Phishing (T1566)
    Required data: Microsoft 365 Emails
    Detector tags: Phishing
    Attacker's goals: Automate the process of email sending, increasing the chances of an email to pass spam filtration.
    Investigative actions: Examine the sender's IP address and reputation. Verify whether the sender's IP address has appeared in different log sources before, and if it is recognizable. If the message contains attachments or links, scrutinize them for any suspicious indications. Monitor further actions taken, such as file downloads or access to potentially malicious links.

    Variations

    Unusual automated email or script usage detected from a known sender

    Informational overridden

    The message contains X-PHP-Script or X-PHP-Originating-Script headers, indicating it was generated by an automated PHP script or web application. While often legitimate, this behavior is frequently associated with shared hosting abuse, phishing kits, and compromised web applications. This sender doesn't typically send emails using scripts. overridden