Detections
Analytics

MS.EXO.10.3v1 - Email scanning SHALL be capable of reviewing emails after delivery.

Information

As known malware signatures are updated, it is possible for an email to be retroactively identified as containing malware after delivery. Scanning emails can reduce the number of malware-infected emails in users' mailboxes.

NOTE: Nessus has provided the target output to assist in reviewing the benchmark to ensure target compliance.

Solution

Any product meeting the requirements outlined in this baseline policy may be
used. If the agency uses Microsoft Defender, see the following
implementation steps for
[enabling preset security policies](./defender.md#implementation), which
include zero-hour auto purge (ZAP) to retroactively detect malware in messages
already delivered to mailboxes and removes them.

See Also

https://github.com/cisagov/ScubaGear/tree/v1.8.0/

Item Details

Category: SYSTEM AND INFORMATION INTEGRITY

References: 800-53|SI-3

Plugin: microsoft_azure

Control ID: a979fe09f2d9d2d64d2ee6db6af9a8bdfe6c9b2e5a3e791d35f69b23905e1efa