Analytics Alerts

Browse the Cortex analytics alert reference.

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1 alert match the current filters. tactic: TA0006 ✕ technique: T1204 ✕

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  • Usage of homograph characters detected in an email attachment(s) name Informational Email 1 variation

    Detected characters resembling Latin letters within an email attachment(s) name. This method could be used as a method to evade text or file scanners and analyzers.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Day
    ATT&CK tactics: Execution (TA0002) Credential Access (TA0006)
    ATT&CK techniques: User Execution (T1204) Brute Force: Password Cracking (T1110.002)
    Required data: Microsoft 365 Emails
    Detector tags: Evasion, Phishing
    Attacker's goals: Evade file scanner defenses, tricking recipients into running malicious attachments.
    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. Check the domain the email came from, and if this domain is recognized within the organization. Scrutinize the attachments related to the email message. Monitor file-related actions taken related to the attachment.

    Variations

    Usage of homograph characters detected in an email attachment(s) extension

    Low overridden

    Detected non-latin characters within an email attachment's extension(s). Detected characters resembling Latin letters within an email attachment(s) name. This method could be used as a method to evade text or file scanners and analyzers. overridden