The Symantec Endpoint Protection client Outlook Auto-Protect must be configured to insert a warning into email messages when a message part has been deleted, cleaned, or quarantined.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-42807	DTASEP074	SV-55535r1_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 Local Client Antivirus STIG	2014-07-03

Details

Check Text ( C-49079r1_chk )
GUI check: Locate the Symantec Endpoint Protection icon in the system tray. Double-click the icon to open the Symantec Endpoint Protection configuration screen. On the left hand side, select Change settings -> Under Virus and Spyware Protection -> Select Configure Settings -> Under the Outlook Auto-Protect tab, under Email Messages -> Ensure "Insert a warning into the email message" is selected. Criteria: If "Insert a warning into the email message" is not selected, this is a finding. On the machine use the Windows Registry Editor to navigate to the following key: 32 bit: HKLM\SOFTWARE\Symantec\Symantec Endpoint Protection\AV\Storages\MicrosoftExchangeClient\RealTimeScan 64 bit: HKLM\SOFTWARE\Wow6432Node\Symantec\Symantec Endpoint Protection\AV\Storages\MicrosoftExchangeClient\RealTimeScan Criteria: If the value of InsertWarning is not 1, this is a finding.

Check Text ( C-49079r1_chk )

GUI check: Locate the Symantec Endpoint Protection icon in the system tray. Double-click the icon to open the Symantec Endpoint Protection configuration screen. On the left hand side, select Change settings -> Under Virus and Spyware Protection -> Select Configure Settings -> Under the Outlook Auto-Protect tab, under Email Messages -> Ensure "Insert a warning into the email message" is selected.

Criteria: If "Insert a warning into the email message" is not selected, this is a finding.

On the machine use the Windows Registry Editor to navigate to the following key:
32 bit:
HKLM\SOFTWARE\Symantec\Symantec Endpoint Protection\AV\Storages\MicrosoftExchangeClient\RealTimeScan
64 bit:
HKLM\SOFTWARE\Wow6432Node\Symantec\Symantec Endpoint Protection\AV\Storages\MicrosoftExchangeClient\RealTimeScan

Criteria: If the value of InsertWarning is not 1, this is a finding.

Fix Text (F-48393r1_fix)
Locate the Symantec Endpoint Protection icon in the system tray. Double-click the icon to open the Symantec Endpoint Protection configuration screen. On the left hand side, select Change settings -> Under Virus and Spyware Protection -> Select Configure Settings -> Under the Outlook Auto-Protect tab, under Email Messages -> Select "Insert a warning into the email message".