Detectors

Every Cortex detection rule the toolbox knows about — analytics alerts, BIOCs and correlation rules — in one filterable set.

5 detectors match the current filters. technique: T1656 ✕

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Type Name Severity Module Data source / event ATT&CK
Analytics BIOC Suspicious DKIM Result The email contains a suspicious DKIM entry, showing either an unexpected verification result (none, fail, or policy) or a mismatched signing domain, which may indicate potential tampering or spoofing activity. Informational Email Security Microsoft 365 Emails Defense Evasion
Analytics BIOC Suspicious DMARC result The email has a suspicious DMARC result of either fail or none, which may indicate a potential domain misconfiguration or spoofing. Informational Email Security Microsoft 365 Emails Defense Evasion
Analytics BIOC Suspicious SPF Result The email has a suspicious SPF result of fail, soft fail, or policy, which may indicate a potential domain misconfiguration or spoofing. Informational Email Security Microsoft 365 Emails Defense Evasion
Analytics BIOC Unusual hostname for the sending mail server in the email headers The detected mail server hostname had not been observed in the organization's emails in the past 30 days. Informational Email Security Microsoft 365 Emails Defense Evasion
Analytics BIOC Unusual sender IP subnet This IP address has not been observed in correlation with the sender's fully qualified domain name within the last 30 days. Informational Email Security Microsoft 365 Emails Defense Evasion