Detectors
Every Cortex detection rule the toolbox knows about — analytics alerts, BIOCs and correlation rules — in one filterable set.
11 detectors match the current filters.
Download CSV| Type | Name | Severity | Module | Data source / event | ATT&CK |
|---|---|---|---|---|---|
| Analytics | Exchange mailbox delegation permissions added A user added delegation permissions to an Exchange mailbox. | Informational | Identity Threat Detection (ITDR), SaaS Threat Detection, Email Security | Office 365 Audit | Persistence |
| Analytics | Massive file downloads from SaaS service A user downloaded a large volume of files from an organizational SaaS service, either exceeding the normal file count or size for the user's typical behavior. | Informational | Identity Threat Detection (ITDR), SaaS Threat Detection, Email Security | Box Audit Log, DropBox, Google Workspace Audit Logs, Office 365 Audit | Collection |
| Analytics | Numerous emails sent by a single sender to multiple internal recipients Numerous emails were sent to multiple internal recipients. This may indicate spam or any other malicious attempt. | Informational | Email Security | Microsoft 365 Emails | Initial Access |
| Analytics | Potential Phishing has been detected This email contains multiple indicators consistent with a phishing attack. The message likely attempts to steal credentials, distribute malware, or trick recipients into performing actions that compromise security through deceptive content or suspicious technical characteristics. | Medium | Email Security | Box Audit Log, DropBox, Google Workspace Audit Logs, Microsoft 365 Emails, Office 365 Audit, Okta Audit Log | Initial Access |
| Analytics | Sensitive Exchange mail sent to external users A user sent sensitive email messages to external users. | Informational | Identity Threat Detection (ITDR), SaaS Threat Detection, Email Security | Office 365 Audit | Collection, Exfiltration |
| Analytics | Sudden spike in outbound email volume Unusual amount of emails sent by an internal sender to one or more external recipients within a short timeframe. | Informational | Email Security | Microsoft 365 Emails | Execution, Credential Access |
| Analytics | Suspicious sender exhibiting automated sending patterns Multiple messages from a single sender were observed over a short period, all having the same subject and differing body content. This repetitive pattern may indicate automated or scripted behavior. | Informational | Email Security | Microsoft 365 Emails | Initial Access |
| Analytics | Suspicious sending domain with sender address randomization Multiple messages from a single sender domain were observed over a short period, each using a unique sender address. This per-message sender randomization is uncommon for legitimate senders and suggests automated behavior. | Informational | Email Security | Microsoft 365 Emails | Initial Access |
| Analytics | Suspicious theme and sentiment in email The email's body has a theme and sentiment that may indicate a malicious attempt. | Informational | Email Security | Box Audit Log, DropBox, Google Workspace Audit Logs, Microsoft 365 Emails, Office 365 Audit, Okta Audit Log | Impact |
| 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 |
| Analytics | User moved Exchange sent messages to deleted items A user moved sent messages to deleted items in Exchange. | Informational | Identity Threat Detection (ITDR), SaaS Threat Detection, Email Security | Office 365 Audit | Defense Evasion |