Editing the Message Attachment Filter | Surf Control 5.2.4 specification

POLICY MANAGER

Global Policy

3

Editing the Message Attachment Filter

You can edit this filter to exactly match your company’s requirements.

To edit the Message Attachment filter:

1Select Global Policy from the Policy Manager tab.

2Click Filters. The Global Policy Filter list screen is displayed.

3Click the Add .The Create New Filter screen is displayed.

4Select the Message Attachment Filter and click Next.

5Enter a new name into the field to change the name of this filter.

6This filter is enabled by default. Select the disable option if you want to switch it off.

7If you want to make the filter so that it can be overwritten by a sub-policy change the Filter Permission setting to writable. The default is read-only.

8Specify how you want RiskFilter to deal with attachments:

•Scan for file names using patterns. Use a semicolon (;) to separate multiple patterns – Searches for patterns in file names i.e. image.jpg, a*t, About.

•Scan for selected attachment file types (Edit) – Will scan for the selected file types including those within archives. Click Edit. A screen is displayed where you can define exactly what type of file you want to scan.

•Scan for archives (up to 15) ... layers – The e-mail attachment will be scanned to see if it has more layers than the number defined in the Filter Criteria section. If it does have more layers, it will be treated in the way specified for that filter if it is triggered.

•Scan for archives which have a decompressed size greater than (up to 1000MB) ... KB – E-mail messages with archives are checked to ensure the unzipped size does not exceed this value.

•Strip and discard the attachment when filtering criteria met – If this option is selected and the filter is triggered the attachment will be removed from the message and discarded.

9Set the action that will be taken if the filter is triggered. See Step 2 - Defining the action on page 67 for details on what these actions are.

10Click Submit to save these new settings.

SurfControl RiskFilter - E-mail V5.2.4

Administrator’s Guide 97

Image 102

Surf Control 5.2.4 manual Editing the Message Attachment Filter, Select the Message Attachment Filter and click Next

Contents

SurfControl RiskFilter E-mail Contents Policy Manager Riskfilter System Management Console Appendix Chapter HOW Riskfilter Works Managing Your Messages with Riskfilter Connection ControlRelay Control Load Balancing with Riskfilter Mail Exchanger IP Address MX Preference Load balancing with RiskFilter Launching Surfcontrol Riskfilter Riskfilter System Management ConsoleHttps//hostnameoripaddress10000 Riskfilter Management Console Administrator Https//hostnameoripaddress/adminOpening the RiskFilter Management Console Before YOU Start System Settings System Settings TAB What can be Configured in the System Settings TAB?Terminology Used General ConfigurationSelect General Configuration from the System Settings tab Postmaster e-mail address Session Timeout Other SettingsAdmin Console Smtp greeting User Directories Editing User Directories Deleting a User Directory Open the User Directories screen Microsoft Active Directory Click Add in the User Directories screen IBM Ldap server Select IBM Ldap Server Generic Ldap Click Add in the User Directories screen Select Generic Ldap Validation settings Esmtp Server Information Recipient File Local Database To add a local database Click Add Select General Secure Proxy from the System Settings tab Secure ProxyLocal Database Add/Edit Address screen is displayed Select Enable POP3 Proxy Select Enable Webmail ProxySelect Enable Imap Proxy Setting up the storage directories Select General Directories from the System Settings tabLogs and Archives Certificate Notifications Exporting Certificates Select General Certificate from the System Settings tabImporting Certificates Certificate Signing Request Receive Settings Connection SettingsConnection Control Smtp Greeting Delay Allow Access List Directory Attack Control 16 The Directory Attack Control screen SPF Authentication Configuration Relay ControlControlling relaying of messages Allowing relaying to specific domains Relay for Internal Senders Recipient Validation Adding details of domainsAdd validation servers Message Control 19 The Message Control screen Exception Control 20 Set what action is taken on messages To configure exception control Black List Adding an IP or subnet address to the blacklist Importing and exporting Lists Adding domain or e-mail addresses to the blacklist White List Adding an IP or subnet address to the White ListDynamic White List Receive Settings DOMAIN-BASED Delivery Send SettingsSetting up the destination domains Delivering the messages Using TLS authentication Transport Layer Security Select Forward mail to the following Smtp servers Traffic Control Advanced Delivery Send Settings User Management Account Manager Changing the Administrator Account Password Specifying Administrator Access Setting up Administrator Access Editing Administrator Accounts Personal E-MAIL ManagerSelect Account Manager from the User Management menu Setting up the PEM message 31 What the user sees Personal E-mail Manager Adding users Exporting lists of usersImporting lists of users END-USER Control End-user Bypass Anti-Spam SettingSetting up End User Control User List User Authentication Authenticating PEM users Authenticating remote users License & Updates Update NOW Updating your Anti-Spam Agent Definitions AVA and ASA License Expired Scheduled Update Select the Anti-Virus Agent Update check boxUpdating the Anti-Virus Agent Updating the Anti-Spam Agent Select the Anti-Spam Agent Update check boxLicense Status Updating Component Licenses Update Server Manually setting up a license serverViewing component licenses License Server User Number Exceeded Help Admin Guide Contact SupportSelect Help Contact Support from the System Settings tab Submitting a Support Request Firstboot Wizard Configuration Wizard KEY Points Key Points Policy Manager What can be Configured in the Policy Manager TAB? Policy Manager TAB Creating a Policy Defining UsersDefining the Action Defining the Rules Global Policy Filter List Address Group Importing and Exporting Lists Deleting Address Groups Queue Manager Adding Queues Editing a Queue Select Queue Manager from the Policy Manager tab Dictionary Manager Surfcontrol DictionariesEditing SurfControl Dictionary properties Changing the value of words in the SurfControl Dictionaries Adding words to the SurfControl DictionariesDeleting a word or phrase Custom Dictionaries Create a new dictionary Importing Dictionaries Importing a SurfControl Dictionary Pack Creating a unicode text file Worthlesstab space15 balancetab space10 Importing a unicode text file Exporting a dictionarySelect Import from a Unicode text file Global Policy Creating a NEW SUB-POLICY Select Global Policy from the Policy Manager tab 15 Enter the details of the new Sub-policy Editing a SUB-POLICY Deleting a SUB-POLICYAdding Filters to the Policy Defining a Filter 18 The Global Policy Filter List screen Editing the Anti-Virus Agent Filter ANTI-VIRUS Agent FilterCreating a new filter Select Global Policy Filters from the Policy Manager tab Global Policy ANTI-SPAM Agent Filters Select Anti-Spam Agent DFP Configuring the Anti-Spam Agent Heuristics Filter Select Anti-Spam Agent Heuristics Configuring the Anti-Spam Agent LexiRules Filter Select Anti-Spam Agent LexiRules Internet Threat Database Filter 23 The Internet Threat Database Filter screen Standard Disclaimer Editing the Internet Threat Database FilterSelect the Internet Threat Database Filter and click Next Editing the Standard Disclaimer Filter Select the Standard Disclaimer Filter General Content Filter Editing the General Content FilterSelect the General Content Filter and click Next Advanced Content Filter Editing the Advanced Content FilterSelect the Advanced Content Filter and click Next Using the Expression List 27 The Expression screen Using Logical Operators RiskFilter or Gateway or Innovation Examples showing the use of OperandsRiskFilter and Gateway and Innovation Occur gateway Assume Frequency =2 Message Attachment Filter 28 Message Attachment Filter screen Editing the Message Attachment Filter Select the Message Attachment Filter and click Next Content Guardian Creating a new Content Guardian filterSelect the Internet Content Guardian Filter and click Next Adding a filtering rule Dictionary Threshold Filter Deleting a filtering ruleHow the Dictionary Threshold Filter works Configuring the Dictionary Threshold Filter Select the Dictionary Threshold Filter and click Next Global Policy KEY Points Key Points Reports & Logs What can be Configured in the Reports and Logs TAB? Reports and Logs TAB Dashboard Server status monitoring Select Master Report from the Reports and Logs tab Master ReportQuerying the Master Report Select Specified date range from the Logs for list box Master Report Message Report Querying the Message Report Policy Report Querying the Policy Report Virus Report Querying the Virus Report Spam Report Querying the Spam Report Connection Report Querying the Connection Report Connection Report System Report Select Isolated Messages from the Reports and Logs tab Isolated MessagesManaging Isolated Messages Click View Messages Isolated Messages Virus Messages Managing the Virus MessagesSelect Virus Messages from the Reports and Logs tab 14 An Archived message Spam Messages Managing Spam MessagesSelect Spam Messages from the Reports and Logs tab To view a message click the subject Archived Messages Managing Archived MessagesSelect Archived Messages from the Reports and Logs tab Export Messages Reprocess Messages View MessagesClick Reprocess Messages 19 Select the check box alongside the message Deferred Messages Querying Deferred MessagesSelect Deferred Messages from the Reports and Logs tab 22 An Archived message KEY Points Key Points RiskFilter System Management Console What can be Configured with the System Management CONSOLE? Overview Accessing the Riskfilter System Management Console Rfmngr Account What can be Configured in the Webmin TAB? Webmin TAB Select Webmin Configuration from the Webmin tab Webmin ConfigurationIP access control Webmin Actions LOG Language Select Language from the Webmin Configuration screenSelect Logging from the Webmin Configuration screen Ports and Addresses Adding Webmin Servers Webmin Servers IndexProxy Servers Select Webmin Servers Index in the Webmin What can be Configured in the System TAB? System TAB Select Change Passwords in the System tab Bootup and ShutdownChange Passwords Historic System Statistics Multi Gateway Policy Routing Select Multi Gateway Policy Routing in the System tab Network Configuration Network Interfaces Multi-NIC configuration in RiskFilter Setting up additional NICsEnter an IP Address 11 The Create Bootup Interface screen Routing and Gateways Select DNS Client from the Network Configuration tab DNS Client Host Addresses 15 Host Addresses Running Processes System TimeSelect System Time in the System tab System and Server Status Click Sync system time What can be Configured in the Riskfilter TAB? Riskfilter TAB Riskfilter Services Manager Riskfilter Backup Manager Riskfilter Cluster Wizard Click Complete Load balancing with RiskFilter 25Load balancing 26 RiskFilter in a cluster set up Riskfilter WEB Access Manager Select Web Access Manager in the RiskFilter tab Update Riskfilter E-MAIL 28 The Update RiskFilter-E-mail screen KEY Points Key Points Appendix Using the Command Line Interface # sudo /etc/init.d/smgd status Clean queues QTOOL.SH Using the Command Line Interface Using the Command Line Interface Using the Command Line Interface UNINSTALL.SH Example 6 uninstalling the RiskFilter software All items were successfully uninstalled Core / Liability Categories Internet Threat Database CategoriesInternet Theat Database Categories Productivity Categories Core / Liability Categories Productivity Categories Special Events Other Index Administrator’s Guide SurfControl RiskFilter E-mail SurfControl RiskFilter E-mail Administrator’s Guide OpenSSL Sun RPC Apache Software License, Version Expat XML Parser Toolkit SPFJava Ldap