Detectors
Every Cortex detection rule the toolbox knows about — analytics alerts, BIOCs and correlation rules — in one filterable set.
6 detectors match the current filters.
Download CSV| Type | Name | Severity | Module | Data source / event | ATT&CK |
|---|---|---|---|---|---|
| Analytics BIOC | First-seen email from mailbox owner to external recipient's address in the last 30 days Internal sender initiated first-time communication with an external recipient in the last 30 days. | Informational | Email Security | Microsoft 365 Emails | Exfiltration |
| Analytics BIOC | Outbound email contains file-sharing service link sent to external recipient Identifies outbound emails that include links to file-sharing services sent externally. | Informational | Email Security | Microsoft 365 Emails | Execution, Credential Access |
| Analytics BIOC | Outbound email includes an external BCC recipient observed for the first time Internal sender BCC'd an external recipient whose address has not been observed in prior communications. | Informational | Email Security | Microsoft 365 Emails | Execution, Credential Access |
| Analytics BIOC | Outbound email to an address hosted by a public email service provider Internal sender emailed to an address hosted by a public email service provider. | Informational | Email Security | Microsoft 365 Emails | Execution, Credential Access |
| Analytics BIOC | Sending unusual file(s) to an external address Unusual files sent to an external address. | Low | Email Security | Microsoft 365 Emails | Initial Access, Exfiltration |
| Analytics | Unusual attachment volume in outbound emails Numerous emails with substantial attachments sent by an internal sender to one or more external recipients within a short timeframe. | Informational | Email Security | Microsoft 365 Emails | Exfiltration |