The Symantec Endpoint Protection client Internet Email Auto-Protect actions must be explicitly configured at the top, Security Risks, level and not be overridden by the Spyware sub-level.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-42771	DTASEP111	SV-55499r1_rule		Medium

Description
Email has become one of the most frequently used methods of spreading malware, through embedded HTML code and attachments. User awareness and training, warning users to not open suspicious emails or email attachments and to not click hyperlinks, etc. from unknown or known senders, will not fully protect from email-borne malware. Mass mailing worms are similar to email-borne viruses but are self-contained rather than being designed to infect an existing file. Protecting from email-borne viruses and mass mailing worms by scanning email upon delivery mitigates the risk of infection via email.

Description

Email has become one of the most frequently used methods of spreading malware, through embedded HTML code and attachments. User awareness and training, warning users to not open suspicious emails or email attachments and to not click hyperlinks, etc. from unknown or known senders, will not fully protect from email-borne malware. Mass mailing worms are similar to email-borne viruses but are self-contained rather than being designed to infect an existing file. Protecting from email-borne viruses and mass mailing worms by scanning email upon delivery mitigates the risk of infection via email.

STIG	Date
Symantec Endpoint Protection 12.1 Managed Client Antivirus	2014-10-01

Details

Check Text ( C-49043r1_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, Email Scans -> Select Internet Email Auto-Protect -> Select the Actions tab -> Under Actions -> Under Security Risks -> Select Spyware -> Ensure "Override actions configured for Security Risks" is NOT selected. Criteria: If "Override actions configured for Security Risks" is selected, 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\Storages\InternetMail\RealTimeScan\Expanded Criteria: If the value of FirstAction is not 3, this is a finding. If the value of FirstAction is 3, then check A. A must be compliant for the check to be not a finding. A - If the value of OverrideDefaultActions within HKLM\SOFTWARE\Symantec\Symantec Endpoint Protection\AV\Storages\InternetMail\RealTimeScan\Expanded\TCID-6 is 0 or the value is not there, this is not a finding. 64 bit: HKLM\SOFTWARE\Wow6432Node\Symantec\Symantec Endpoint Protection\AV\Storages\InternetMail\RealTimeScan\Expanded Criteria: If the value of FirstAction is not 3, this is a finding. If the value of FirstAction is 3, then check A. A must be compliant for the check to be not a finding. A - If the value of OverrideDefaultActions within HKLM\SOFTWARE\Wow6432Node\Symantec\Symantec Endpoint Protection\AV\Storages\InternetMail\RealTimeScan\Expanded\TCID-6 is 0 or the value is not there, this is not a finding.

Check Text ( C-49043r1_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, Email Scans -> Select Internet Email Auto-Protect -> Select the Actions tab -> Under Actions -> Under Security Risks -> Select Spyware -> Ensure "Override actions configured for Security Risks" is NOT selected.

Criteria: If "Override actions configured for Security Risks" is selected, 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\Storages\InternetMail\RealTimeScan\Expanded

Criteria: If the value of FirstAction is not 3, this is a finding.
If the value of FirstAction is 3, then check A. A must be compliant for the check to be not a finding.
A - If the value of OverrideDefaultActions within HKLM\SOFTWARE\Symantec\Symantec Endpoint Protection\AV\Storages\InternetMail\RealTimeScan\Expanded\TCID-6 is 0 or the value is not there, this is not a finding.

64 bit:
HKLM\SOFTWARE\Wow6432Node\Symantec\Symantec Endpoint Protection\AV\Storages\InternetMail\RealTimeScan\Expanded

Criteria: If the value of FirstAction is not 3, this is a finding.
If the value of FirstAction is 3, then check A. A must be compliant for the check to be not a finding.
A - If the value of OverrideDefaultActions within HKLM\SOFTWARE\Wow6432Node\Symantec\Symantec Endpoint Protection\AV\Storages\InternetMail\RealTimeScan\Expanded\TCID-6 is 0 or the value is not there, this is not a finding.

Fix Text (F-48357r1_fix)
From the Symantec Endpoint Protection Management Server, Symantec Endpoint Protection Management Console: Select Policies -> Double-click the applied policy -> Under Windows Settings, Email Scans -> Select Internet Email Auto-Protect -> Select the Actions tab -> Under Actions -> Under Security Risks -> Select Spyware -> Ensure "Override actions configured for Security Risks" is NOT selected.