The Trellix Application Control Options Advanced Threat Defense (ATD) settings, if being used, must be confined to the organizations enclave.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-213322	SRG-APP-000276	MCAC-PO-000106	SV-213322r1015876_rule	2024-08-27	3

Description
Data will be leaving the endpoint to be analyzed by the ATD. Because data could feasibly be intercepted en route, risk of outside threats is minimized by ensuring the ATD is in the same enclave as the endpoints.

ℹ️ Check
If an ATD server is not being used in the environment, this is Not Applicable. Consult with the information system security officer (ISSO)/information system security manager (ISSM) to review the written policy to ensure the usage of an ATD is documented. If the usage of an ATD is not documented in the written policy, this is a finding. Determine the location of the ATD being used by the organization and verify the ATD is confined to the organization's enclave. If the location of the ATD being used by the organization cannot be determined and the ATD is not confined to the organization's enclave, this is a finding.

ℹ️ Check

If an ATD server is not being used in the environment, this is Not Applicable. Consult with the information system security officer (ISSO)/information system security manager (ISSM) to review the written policy to ensure the usage of an ATD is documented. If the usage of an ATD is not documented in the written policy, this is a finding. Determine the location of the ATD being used by the organization and verify the ATD is confined to the organization's enclave. If the location of the ATD being used by the organization cannot be determined and the ATD is not confined to the organization's enclave, this is a finding.

✔️ Fix
Relocate or reinstall the ATD being used by the organization to be confined to the organization's enclave.