The McAfee MOVE AV On Access Scan Policy must be configured to cache scan results for files smaller than 40 MB.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-78529	MV45-OAS-000003	SV-93235r1_rule		Medium

Description
This setting configures the maximum file size (in MB) up to which scan results should be cached. The default setting is 40 MB. Files smaller than this threshold are copied completely to the Security Virtual Machine (SVM) and scanned. If the file is found to be clean, its scan result is cached based on its SHA 1 checksum for faster future access. Files larger than this size threshold are transferred in chunks that are requested by the SVM and scanned. Setting that threshold higher could impact the performance of the scan processes.

Description

This setting configures the maximum file size (in MB) up to which scan results should be cached. The default setting is 40 MB. Files smaller than this threshold are copied completely to the Security Virtual Machine (SVM) and scanned. If the file is found to be clean, its scan result is cached based on its SHA 1 checksum for faster future access. Files larger than this size threshold are transferred in chunks that are requested by the SVM and scanned. Setting that threshold higher could impact the performance of the scan processes.

STIG	Date
McAfee MOVE AV Multi-Platform 4.5 Security Technical Implementation Guide	2017-12-01

Details

Check Text ( C-78097r1_chk )
Access the McAfee ePO console. Select Menu >> Policy >> Policy Catalog and then select "MOVE AntiVirus 4.5.0" from the Product list. From the Category list, select "On Access Scan". Select each configured On Access Scan policy. Under "Scan", verify the "Cache scan results for files smaller than" is set to "40" MB or smaller. If "Cache scan results for files smaller than" is not set to "40" MB or less, this is a finding.

Check Text ( C-78097r1_chk )

Access the McAfee ePO console.

Select Menu >> Policy >> Policy Catalog and then select "MOVE AntiVirus 4.5.0" from the Product list.

From the Category list, select "On Access Scan".

Select each configured On Access Scan policy.

Under "Scan", verify the "Cache scan results for files smaller than" is set to "40" MB or smaller.

If "Cache scan results for files smaller than" is not set to "40" MB or less, this is a finding.

Fix Text (F-85263r1_fix)
Access the McAfee ePO console. Select Menu >> Policy >> Policy Catalog and then select "MOVE AntiVirus 4.5.0" from the Product list. From the Category list, select "On Access Scan". Select the On Access Scan policy to be configured. Under "Scan", set "Cache scan results for files smaller than" to "40" MB or smaller. Click "Save".