The Symantec Endpoint Protection client weekly scheduled scan must be configured to scan all file types or to scan excluded files option must be documented with, and approved by, IAO/IAM.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-42691	DTASEP045	SV-55419r1_rule		Medium

Description
When scanning for malware, excluding specific file types will increase the risk of a malware-infected file going undetected. By configuring antivirus software to scan all file types, the scanner has a higher success rate at detecting and eradicating malware.

STIG	Date
Symantec Endpoint Protection 12.1 Managed Client Antivirus	2015-07-08

Details

Check Text ( C-48962r1_chk )
Server check: From the Symantec Endpoint Protection Management Server, Symantec Endpoint Protection Management Console: Select Policies -> Double-click the applied policy -> Under Windows Settings, Scheduled Scans -> Select Administrator-Defined Scans -> Double-click the Weekly Scan -> Under the Scan Details tab, Scanning -> Ensure "Scan all files" is selected, or If "Scan Only Selected Extensions:" is selected -> Select Extensions -> Ensure any selected extensions are documented and approved by the IAO/IAM. Criteria: If "Scan all files" is not selected, or If "Scan Only Selected Extensions" is selected and the extensions are not documented with, and approved by, the IAO/IAM, this is a finding. On the client machine, use the Windows Registry Editor to navigate to the following key: 32 bit: HKLM\SOFTWARE\Symantec\Symantec Endpoint Protection\AV\Scheduler\{SID}\Custom Tasks\{Scan ID} 64 bit: HKLM\SOFTWARE\Wow6432Node\Symantec\Symantec Endpoint Protection\AV\Scheduler\{SID}\Custom Tasks\{Scan ID} Criteria: If the value of FileType is not 1, or If the value of "ExcludeByExtension", "HaveExceptionDirs", "HaveExceptionFiles" are 1, and the IAO/IAM has approved the use of exclusions, this is not a finding.

Check Text ( C-48962r1_chk )

Server check: From the Symantec Endpoint Protection Management Server, Symantec Endpoint Protection Management Console: Select Policies -> Double-click the applied policy -> Under Windows Settings, Scheduled Scans -> Select Administrator-Defined Scans -> Double-click the Weekly Scan -> Under the Scan Details tab, Scanning -> Ensure "Scan all files" is selected, or If "Scan Only Selected Extensions:" is selected -> Select Extensions -> Ensure any selected extensions are documented and approved by the IAO/IAM.

Criteria: If "Scan all files" is not selected, or If "Scan Only Selected Extensions" is selected and the extensions are not documented with, and approved by, the IAO/IAM, this is a finding.

On the client machine, use the Windows Registry Editor to navigate to the following key:
32 bit:
HKLM\SOFTWARE\Symantec\Symantec Endpoint Protection\AV\Scheduler\{SID}\Custom Tasks\{Scan ID}
64 bit:
HKLM\SOFTWARE\Wow6432Node\Symantec\Symantec Endpoint Protection\AV\Scheduler\{SID}\Custom Tasks\{Scan ID}

Criteria: If the value of FileType is not 1, or If the value of "ExcludeByExtension", "HaveExceptionDirs", "HaveExceptionFiles" are 1, and the IAO/IAM has approved the use of exclusions, this is not a finding.

Fix Text (F-48276r1_fix)
From the Symantec Endpoint Protection Management Server, Symantec Endpoint Protection Management Console: Select Policies -> Double-click the applied policy -> Under Windows Settings, Scheduled Scans -> Select Administrator-Defined Scans -> Double-click the Weekly Scan -> Under the Scan Details tab, Scanning -> Select "Scan all files", or If "Scan Only Selected Extensions:" is selected -> Select Extensions -> Ensure any selected extensions are documented with, and approved by, the IAO/IAM.

Fix Text (F-48276r1_fix)

From the Symantec Endpoint Protection Management Server, Symantec Endpoint Protection Management Console: Select Policies -> Double-click the applied policy -> Under Windows Settings, Scheduled Scans -> Select Administrator-Defined Scans -> Double-click the Weekly Scan -> Under the Scan Details tab, Scanning -> Select "Scan all files", or If "Scan Only Selected Extensions:" is selected -> Select Extensions -> Ensure any selected extensions are documented with, and approved by, the IAO/IAM.