The Symantec Endpoint Protection client Internet Email Auto-Protect must be configured to not send a notification to the sender of an email in which a threat was detected.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-42757	DTASEP097	SV-55485r1_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	2014-07-03

Details

Check Text ( C-49029r1_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 Notifications tab -> Under Email Notifications -> Ensure "Send email to the sender" is NOT selected. Criteria: If "Send email to the sender" 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 64 bit: HKLM\SOFTWARE\Wow6432Node\Symantec\Symantec Endpoint Protection\AV\Storages\InternetMail\RealTimeScan Criteria: If the value of NotifySender is not 0, this is a finding.

Check Text ( C-49029r1_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 Notifications tab -> Under Email Notifications -> Ensure "Send email to the sender" is NOT selected.

Criteria: If "Send email to the sender" 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
64 bit:
HKLM\SOFTWARE\Wow6432Node\Symantec\Symantec Endpoint Protection\AV\Storages\InternetMail\RealTimeScan

Criteria: If the value of NotifySender is not 0, this is a finding.

Fix Text (F-48343r1_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 Notifications tab -> Under Email Notifications -> Ensure "Send email to the sender" is NOT selected.