Trellix Email Security - Cloud Event Collector

This Integration is part of the Trellix Email Security - Cloud Pack.

Supported versions

Supported Cortex XSOAR versions: 8.2.0 and later.

Use this integration to fetch email security incidents from Trellix Email Security - Cloud as XSIAM events.

This is the default integration for this content pack when configured by the Data Onboarder in Cortex XSIAM.

Configure Trellix Email Security - Cloud Event Collector in Cortex

Parameter	Description	Required
Server URL (e.g., https://etp.us.fireeye.com)		True
API Secret Key	The API Key allows you to integrate with the Trellix Email Security - Cloud.	True
Maximum number of Alerts to fetch.	The maximum number of Alert events to fetch from Trellix Email Security - Cloud.
Maximum number of Email Trace to fetch.	The maximum number of Email Trace events to fetch from Trellix Email Security - Cloud.
Maximum number of Activity Log fetch.	The maximum number of Activity Log events to fetch from Trellix Email Security - Cloud.
Trust any certificate (not secure)
Use system proxy settings
Fetch outbound traffic	Outbound traffic will be fetched in addition to inbound traffic.
Hide sensitive details from email	Hide subject and attachments details from emails.

Access control

All the API requests follow the domain and domain group restrictions of the user. For example, if a user has access to only a few domains in their organization, the response to the APIs will be based on only those domains and domain groups.

REST API Limitation

Email Security — Cloud REST APIs have a rate limit of 60 requests per minute per API route (/trace, /alert, and /quarantine) for every customer.

This means, in 1 minute, a customer can make:

• 60 requests to Trace APIs (parallel or sequential)
• 60 requests to Alert APIs (parallel or sequential)
• 60 requests to Quarantine APIs (parallel or sequential)

Within the minute, the 61st request to any of these APIs would throw a rate limit exceeded error.

The rate limit applies to the customer as a whole. This means that if the customer has multiple admin users who have generated API Keys, the rate limit is applicable at the customer level and not per API key.

Event Direction & “Shared Content” Across Event Types

What you may see

In XSIAM you may notice that the same email content (e.g., subject/message-ID) appears as multiple events, sometimes with different directions (inbound vs outbound) or even in different event types (e.g., both Email Trace and Alert). This is expected:

• Inbound vs Outbound of the same conversation
  A user receives an email (inbound) and later forwards/replies externally (outbound). Trellix generates two separate events—one per transaction—so both appear in XSIAM.
• Distribution lists / group expansion
  An inbound message to a list can fan-out and create outbound traffic to external members, yielding additional outbound events.
• Internal mail
  Some environments also produce “internal/domain-internal” transactions scanned by the gateway. (See note below about the direction_source field.)

How this collector annotates direction

To make the direction explicit in XSIAM, the collector adds a synthetic field:

Field	Applies to	Values	Notes
direction_source	Alerts and Email Trace events	inbound or outbound	Derived from the API route being fetched.
(not set)	Activity Log events	—	Activity logs are user activity, not message transit, so no direction is attached.

Important: direction_source reflects the collector source (inbound vs outbound feeds). If your tenant emits “internal” email_trace transactions, that native notion of “internal” is not surfaced via direction_source and should be inferred from the raw payload fields (e.g., sender/recipient domains) if required.

“Shared content” across event types

A single email can legitimately produce:

• An Email Trace record (transport/flow metadata), and
• An Alert record (security finding on that message).

These are different event types describing different aspects of the same email. The collector does not deduplicate across event types; it only deduplicates within each type per fetch window. Plan downstream correlation accordingly (e.g., join by message identifiers, subject, envelope addresses, and timestamp buckets, plus direction_source).

Commands

You can execute these commands from the CLI, as part of an automation, or in a playbook. After you successfully execute a command, a DBot message appears in the War Room with the command details.

fireeye-etp-get-events

---

Gets events from Trellix Email Security - Cloud.

Base Command

fireeye-etp-get-events

Input

Argument Name	Description	Required
limit	The number of events to return. Default is 10.	Optional
since_time	The start time by which to filter events. Date format will be the same as in the first_fetch parameter. Default is 3 days.	Optional
should_push_events	Set this argument to True in order to create events, otherwise the command will only display them. Possible values are: true, false. Default is false.	Required

Output Notes

• Additional Fields Added by Collector

  • direction_source (for Alerts and Email Trace only): "inbound" or "outbound".
  • Not present for Activity Log events.

• Correlation Guidance

  • Expect multiple events representing the same email content across directions and/or event types. Correlate using message identifiers (when present), subject, envelope sender/recipient, time window, and direction_source.