ESET NOD32 ANTIVIRUS - FOR KERIO User manual

User Guide
Integrated components:
ESET NOD32 Antivirus
ESET NOD32 Antispyware
NOD32
Antivirus 3.0

contents 1. ESET NOD32 Antivirus 3.0........................4
1.1 What’s new .................................................................. 4
1.2 System requirements .................................................... 4
2. Installation............................................5
2.1 Typical installation ........................................................ 5
2.2 Custom installation....................................................... 6
2.3 Using original settings ................................................... 7
2.4 Entering User name and password .................................. 7
2.5 On‑demand computer scan............................................ 8
3. Beginner’s guide.....................................9
3.1 Introducing user interface design – modes....................... 9
3.1.1 Checking operation of the system...........................9
3.1.2 What to do if the program doesn’t work properly... 10
3.2 Update setup...............................................................10
3.3 Proxy server setup........................................................10
3.4 Settings protection .......................................................11
4. Work with ESET NOD32 Antivirus ............12
4.1 Antivirus and antispyware protection ............................ 12
4.1.1 Real‑time file system protection ............................12
4.1.1.1 Control setup........................................................12
4.1.1.1.1 Scanning of media ................................................12
4.1.1.1.2 Event‑triggered scanning ......................................12
4.1.1.1.3 Checking of newly created files ..............................12
4.1.1.1.4 Advanced setup ....................................................12
4.1.1.2 Cleaning levels......................................................12
4.1.1.3 When to modify real‑time protection configuration 12
4.1.1.4 Checking real‑time protection ...............................13
4.1.1.5 What to do if the real‑time protection does not work1 3
4.1.2 Email protection ...................................................13
4.1.2.1 POP3 checking......................................................13
4.1.2.1.1 Compatibility .......................................................13
4.1.2.2 Integration with Microsoft Outlook, Outlook Express,
Windows Mail ......................................................14
4.1.2.2.1 Appending tag messages to email body..................14
4.1.2.3 Removing infiltrations ..........................................14
4.1.3 Web access protection ..........................................14
4.1.3.1 HTTP ....................................................................15
4.1.3.1.1 Blocked / excluded addresses.................................15
4.1.3.1.2 Web browsers.......................................................15
4.1.4 Computer scan .....................................................15
4.1.4.1 Type of scan..........................................................16
4.1.4.1.1 Standard scan.......................................................16
4.1.4.1.2 Custom scan.........................................................16
4.1.4.2 Scan targets .........................................................16
4.1.4.3 Scan profiles .........................................................16
4.1.5 ThreatSense engine parameters setup ...................17
4.1.5.1 Objects setup .......................................................17
4.1.5.2 Options................................................................ 17
4.1.5.3 Cleaning...............................................................18
4.1.5.4 Extensions............................................................18
4.1.6 An infiltration is detected ......................................18
4.2 Updating the program ..................................................19
4.2.1 Update setup........................................................19
4.2.1.1 Update profiles .....................................................19
4.2.1.2 Advanced update setup........................................20
4.2.1.2.1 Update mode ......................................................20
4.2.1.2.2 Proxy server.........................................................20
4.2.1.2.3 Connecting to LAN................................................21
4.2.1.2.4 Creating update copies – Mirror.............................21
4.2.1.2.4.1 Updating from the Mirror ......................................21
4.2.1.2.4.2 Troubleshooting Mirror update problems .............. 22
4.2.2 How to create update tasks.................................. 22
Copyright © 2007 by ESET, spol. s r. o.
ESET NOD32 Antivirus was developed by ESET, spol. s r.o.
For more information visit www.eset.com.
All rights reserved. No part of this documentation may be
reproduced, stored in a retrieval system or transmitted in any
form or by any means, electronic, mechanical, photocopying,
recording, scanning, or otherwise without a permission in
writing from the author.
ESET, spol. s r.o. reserves the right to change any of the
described application software without prior notice.
Customer Care Worldwide: www.eset.eu/support
Customer Care North America: www.eset.com/support
REV.20090812‑006
ESET NOD32 Antivirus 3.0

4.3 Scheduler ....................................................................23
4.3.1 Purpose of scheduling tasks.................................. 23
4.3.2 Creating new tasks .............................................. 23
4.4 Quarantine..................................................................23
4.4.1 Quarantining files................................................ 24
4.4.2 Restoring from Quarantine .................................. 24
4.4.3 Submitting file from Quarantine........................... 24
4.5 Log files.......................................................................24
4.5.1 Log maintenance ................................................. 25
4.6 User interface..............................................................25
4.6.1 Alerts and notifications ........................................ 25
4.7 ThreatSense.Net ......................................................... 26
4.7.1 Suspicious files .................................................... 26
4.7.2 Statistics ............................................................. 27
4.7.3 Submission.......................................................... 27
4.8 Remote administration ............................................... 28
4.9 License....................................................................... 28
5. Advanced user ..................................... 29
5.1 Proxy server setup....................................................... 29
5.2 Export / import settings............................................... 29
5.2.1 Export settings .................................................... 29
5.2.2 Import settings.................................................... 29
5.3 Command Line............................................................ 29
6. Glossary...............................................31
6.1 Types of infiltrations..................................................... 31
6.1.1 Viruses .................................................................31
6.1.2 Worms .................................................................31
6.1.3 Trojan horses........................................................31
6.1.4 Rootkits ...............................................................31
6.1.5 Adware ............................................................... 32
6.1.6 Spyware .............................................................. 32
6.1.7 Potentially unsafe applications............................. 32
6.1.8 Potentially unwanted applications ....................... 32

4
1. ESET NOD32 Antivirus 3.0
ESET NOD32 Antivirus 3.0 is the successor to the award‑winning
product ESET NOD32 Antivirus 2.*. It utilizes the scanning speed and
the precision of ESET NOD32 Antivirus, granted by the most recent
version of the ThreatSense® scanning engine.
The implemented advanced techniques are capable of proactively
blocking viruses, spyware, trojans, worms, adware and rootkits
without slowing down the system or annoying you as you work or
play with your computer.
1.1 What’s new
The long‑time development experience of our experts is demonstrated
by the entirely new architecture of the ESET NOD32 Antivirus
program, which guarantees maximum detection with minimum
system requirements.
Antivirus & antispyware▪
This module is built upon the ThreatSense® scanning core, which was
used for the first time in the award‑winning NOD 32 Antivirus system.
The ThreatSense® core is optimized and improved with the new ESET
NOD32 Antivirus architecture.
Feature Description
Improved Cleaning
The antivirus system now intelligently cleans
and deletes most of the detected infiltrations
without requiring user intervention.
Background
Scanning Mode
Computer scanning can be launched in
the background without slowing down
performance.
Smaller Update Files
Core optimization processes keep the size of
update files smaller than in version 2.7. Also,
the protection of update files against damage
has been improved.
Popular EMail Client
Protection
It is now possible to scan incoming mail
not only in MS Outlook but also in Outlook
Express and Windows Mail.
Variety of Other
Minor Improvements
–Direct access to file systems for high speed
and throughput.
–Blocking access to infected files
– Optimization for the Windows Security
Center, including Vista.
1.2 System requirements
For seamless operation of ESET NOD32 Antivirus, the system should
meet the following hardware and software requirements:
ESET NOD32 Antivirus:
Windows 2000, XP 400 MHz 32‑bit / 64‑bit (x86 / x64)
128 MB RAM of system memory
35 MB available space
Super VGA (800 × 600)
Windows Vista 1 GHz 32‑bit / 64‑bit (x86 / x64)
512 MB RAM of system memory
35 MB available space
Super VGA (800 × 600)
ESET NOD32 Antivirus Business Edition:
Windows 2000,
2000 Server, XP, 2003
Server
400 MHz 32‑bit / 64‑bit (x86 / x64)
128 MB RAM of system memory
35 MB available space
Super VGA (800 × 600)
Windows Vista,
Windows Server
2008
1 GHz 32‑bit / 64‑bit (x86 / x64)
512 MB RAM of system memory
35 MB available space
Super VGA (800 × 600)

5
2. Installation
After purchase, the ESET NOD32 Antivirus installer can be downloaded
from ESET’s website as an .msi package. Launch the installer and the
installation wizard will guide you through the basic setup. There are
two types of installation available with dierent levels of setup details:
1. Typical installation
2. Custom installation
2.1 Typical installation
The Typical installation is recommended for users who want to install
ESET NOD32 Antivirus with the default settings. The default settings
of the program provide the maximum level of protection, a fact
appreciated by those users who do not want to configure detailed
settings.
The first (very important) step is to enter the user name and password
for automatic updating of the program. This plays a significant role in
providing constant protection of the system.
Enter your User name and Password, i.e. the authentication data
you received after the purchase or registration of the product, into the
corresponding fields. If you do not currently have your User name and
Password available, select the Set update parameters later option.
Authentication data can be inserted at any time later on, directly
from the program.
The next step in the installation is configuration of the ThreatSense.
Net Early Warning System. The ThreatSense.Net Early Warning
System helps to ensure that ESET is immediately and continuously
informed about new infiltrations in order to quickly protect its
customers. The system allows for submission of new threats to ESET‘s
virus laboratory, where they are analyzed, processed and added to the
virus signature databases.
By default, the Enable ThreatSense.Net Early Warning System
check box is selected, which will activate this feature. Click Advanced
setup... to modify detailed settings for the submission of suspicious
files.
The next step in the installation process is to configure the Detection
of potentially unwanted applications. Potentially unwanted
applications are not necessarily intended to be malicious, but can
often negatively aect the behavior of the operating system.
These applications are often bundled with other programs and may
be dicult to notice during the installation process. Although these
applications usually display a notification during installation, they
can easily be installed without your consent.
Select the Enable detection of potentially unwanted applications
option to allow ESET NOD32 Antivirus to detect this type of threat
(recommended).

6
The last step in the Typical installation mode is confirmation of the
installation by clicking the Install button.
2.2 Custom installation
The Custom installation is designed for users who have experience
with fine‑tuning programs and who wish to modify advanced settings
during installation.
The first step is to select the destination location for the install. By
default, the program installs into C:\Program Files\ESET\ESET Smart
Security\. Click Browse… to change this location (not recommended).
Next, Enter your User name and Password. This step is the same as
in the Typical installation (see page 5).
After entering your User name and Password, click Next to Configure
your Internet connection.
If you use a proxy server, it must be correctly configured in order for
virus signature updates to work properly. If you don’t know whether
you use a proxy server to connect to the Internet, leave the default
setting I am unsure if my Internet connection uses a proxy server.
Use the same settings as Internet Explorer and click Next. If you do
not use a proxy server, select the corresponding option.
To configure your proxy server settings, select I use a proxy server
and click Next. Enter the IP address or URL of your proxy server in the
Address field. In the Port field, specify the port where the proxy server
accepts connections (3128 by default). In the event that the proxy
server requires authentication, a valid user name and password must
be entered, granting access to the proxy server. Proxy server settings
can also be copied from Internet Explorer if desired. To do this, click
Apply and confirm the selection.

7
Click Next to proceed to the Configure automatic update settings
window. This step allows you to designate how automatic program
component updates are to be handled on your system. Click Change...
to access the advanced settings.
If you do not want program components to be updated, select
Never update program components. Enabling the Ask before
downloading program components option will display a
confirmation window before downloading program components. To
enable automatic program component upgrades without prompting,
select the option Perform program component upgrade if available.
NOTE: After a program component upgrade, a reboot is usually
required. The recommended setting is: If necessary, restart
computer without notifying.
The next step in the installation is to Enter a password to protect
program parameters. Choose a password you wish to protect the
program with. Retype the password to confirm.
The steps Configuration of the ThreatSense.Net Early Warning
System and Detection of potentially unwanted applications are
the same as for a Typical installation, and are not shown here (see
page 5).
The last step shows a window requiring your consent to install.
2.3 Using original settings
If you reinstall ESET NOD32 Antivirus, the Use current settings option
is displayed. Select this option to transfer setup parameters from
the original installation to the new one.
2.4 Entering User name and password
For optimal functionality, it is important that the program is
automatically updated. This is only possible if the correct user name
and password are entered in the update setup.

8
If you did not enter your user name and password during the
installation, you can do so now. In the main program window, click
Update and then click User name and Password Setup... Enter the
data you received with your product license into the License details
window.
2.5 On‑demand computer scan
After installation of ESET NOD32 Antivirus, a computer scan for the
presence of malicious code should be performed. To quickly launch
a scan, select Computer scan from the main menu and then select
Standard scan in the main program window. For more information
about the Computer scan feature, see the chapter“Computer scan”.

9
3. Beginner’s guide
This chapter provides an initial overview of ESET NOD32 Antivirus and
its basic settings.
3.1 Introducing user interface design – modes
The main window of ESET NOD32 Antivirus is divided into two main
sections. The left column provides access to the user‑friendly main
menu. The main program window on the right predominantly serves
to display information corresponding to the option selected in the
main menu.
The following is a description of buttons within the main menu:
Protection status – In a user‑friendly form, it provides information
about the protection status of ESET Smart Security. If the Advanced
mode is activated, the status of all protection modules is displayed.
Click on a module to view its current status.
Computer scan – This option allows the user to configure and launch
the On‑demand computer scan.
Update – Select this option to access the update module that
manages updates to the virus signature database.
Setup – Select this option to adjust your computer’s security level.
If the Advanced mode is activated, the submenus Antivirus and
antispyware protection module will appear.
Tools – This option is available only in Advanced mode. Provides
access to Log files, Quarantine and the Scheduler.
Help and support – Select this option to access help files, the ESET
Knowledgebase, ESET’s web site and access a Customer Care support
request.
The ESET NOD32 Antivirus user interface allows users to toggle
Standard and Advanced modes. To toggle between modes, see the
Display link located in the bottom left corner of the main ESET NOD32
Antivirus window. Click this button to select the desired display mode.
The standard mode provides access to features required for common
operations. It does not display any advanced options.
Toggling to Advanced mode adds the Tools option to the main menu.
The Tools option allows the user to access Scheduler, Quarantine, or
view ESET NOD32 Antivirus log files.
NOTE: All remaining instructions in this guide will take place in
Advanced mode.
3.1.1 Checking operation of the system
To view the Protection status, click this option at the top of the
main menu. The Antivirus and antispyware submenu will appear
directly below and a status summary about the operation of ESET
NOD32 Antivirus will be displayed in the main program window. Click
Antivirus and antispyware and the main program window ed status
of the individual protection modules
If the modules enabled are working properly, they are assigned
a green check. If not, a red exclamation point or orange notification
icon is displayed, and additional information about the module is
shown in the upper part of the window. A suggested solution for
fixing the module is also displayed. To change the status of individual
modules, click Setup in the main menu and click on the desired
module.

10
3.1.2 What to do if the program doesn’t work properly
If ESET NOD32 Antivirus detects a problem in any of its protection
modules, it is reported in the Protection status window. A potential
solution to the problem is also oered here.
If it is not possible to solve a problem using the displayed list of known
problems and solutions, click Help and support to access the help
files or search the Knowledgebase. If a solution still cannot be found,
you can submit a support request to ESET Customer Care. Based on
this feedback, our specialists can quickly respond to your questions
and eectively advise you on the problem.
3.2 Update setup
Updating the virus signature database and updating program
components are an important part of providing complete protection
against malicious code. Please pay special attention to their
configuration and operation. From the main menu, select Update
and then click Update virus signature database in the main program
window to instantly check for availability of a newer database update.
User name and Password setup... displays a dialog box where the
User name and Password received at the time of purchase should be
entered.
If the User name and Password were entered during the installation of
ESET NOD32 Antivirus you will not be prompted for them at this point.
The Advanced Setup window (to access, press F5) contains other
detailed update options. The Update server: drop‑down menu should
be set to Choose automatically. To configure advanced update
options such as the update mode, proxy server access, accessing
updates on a local server and creating virus signature copies (ESET
NOD32 Antivirus Business Edition), click the Setup... button.
3.3 Proxy server setup
If you use a proxy server to mediate connection to the Internet on
a system using ESET Smart Security, it must be specified in Advanced
Setup (F5). To access the Proxy server configuration window, click
Miscellaneous > Proxy server from the Advanced Setup tree. Select
the Use proxy server check box, and enter the IP address and port of
the proxy server, along with its authentication data.
If this information is not available, you can attempt to automatically
detect proxy server settings for ESET NOD32 Antivirus by clicking the
Detect proxy serverbutton.
NOTE: Proxy server options for various update profiles may dier. If
this is the case, configure the proxy server in the advanced update
setup.

11
3.4 Settings protection
ESET NOD32 Antivirus Settings can be very important from the
perspective of your organization’s security policy. Unauthorized
modifications can potentially endanger the stability and protection
of your system. To password protect the setup parameters, start
from the main menu and click Setup > Enter entire advanced setup
tree... > User interface > Settings protection and click the Enter
password... button.
Enter a password, confirm it by typing it again, and click OK. This
password will be required for any future modifications to ESET NOD32
Antivirus settings.

12
4. Work with ESET NOD32 Antivirus
4.1 Antivirus and antispyware protection
Antivirus protection guards against malicious system attacks by
controlling file, email and Internet communication. If a threat with
malicious code is detected, the Antivirus module can eliminate
it by first blocking it, and then cleaning, deleting or moving it to
quarantine.
4.1.1 Real‑time file system protection
Real‑time file system protection controls all antivirus‑related events
in the system. All files are scanned for malicious code at the moment
they are opened, created or run on the computer. Real‑time file
system protection is launched at system startup.
4.1.1.1 Control setup
The real‑time file system protection checks all types of media,
and control is triggered by various events. Control utilizes the
ThreatSense technology detection methods (as described in
ThreatSense engine parameter setup). The control behavior may vary
for newly created files and existing files. For newly created files, it is
possible to apply a deeper level of control.
4.1.1.1.1 Scanning of media
By default, all types of media are scanned for potential threats.
Local drives – Controls all system hard drives
Removable media – Diskettes, USB storage devices, etc.
Network drives –Scans all mapped drives
We recommend that you keep the default settings and only modify
them in specific cases, such as when scanning certain media
significantly slows data transfers.
4.1.1.1.2 Event‑triggered scanning
By default, all files are scanned upon opening, execution or creation.
We recommend that you keep the default settings, as these provide
the maximum level of real‑time protection for your computer.
The Diskette access option provides control of the diskette boot
sector when this drive is accessed. The Computer shutdown option
provides control of the hard disk boot sectors during computer
shutdown. Although boot viruses are rare today, we recommend
that you leave these options enabled, as there is still the possibility of
infection by a boot virus from alternate sources.
4.1.1.1.3 Checking of newly created files
The probability of infection in newly‑created files is comparatively
higher than in existing files. This is why the program checks these
files with additional scanning parameters. Along with common
signature‑based scanning methods, advanced heuristics are used,
which greatly improves detection rates. In addition to newly‑created
files, scanning is also performed on self‑extracting files (SFX)
and runtime packers (internally compressed executable files).
4.1.1.1.4 Advanced setup
To provide the minimum system footprint when using real‑time
protection, files which have already been scanned are not scanned
repeatedly (unless they have been modified). Files are scanned again
immediately after each virus signature database update. This behavior
is configured using the Optimized scanning option. If this is disabled,
all files are scanned each time they are accessed.
By default, Real‑time protection is launched at operating system
startup time and provides uninterrupted scanning. In special cases
(e.g., if there is a conflict with another real‑time scanner), the
real‑time protection can be terminated by disabling the Automatic
real‑time file system protection startup option.
4.1.1.2 Cleaning levels
The real‑time protection has three cleaning levels (to access, click the
Setup... button in the Real‑time file system protection section and
then click the Cleaning branch).
The first level displays an alert window with available options for▪
each infiltration found. The user must choose an action for each
infiltration individually. This level is designed for more advanced
user who know what to do with every type of infiltration.
The medium level automatically chooses and performs▪
a predefined action (depending on the type of infiltration).
Detection and deletion of an infected file is signaled by an
information message located in the bottom right corner of the
screen. However, an automatic action is not performed if the
infiltration is located within an archive which also contains clean
files, and it is not performed on objects for which there is no
predefined action.
The third level is the most“aggressive” – all infected objects are▪
cleaned. As this level could potentially result in the loss of valid
files, we recommended that it be used only in specific situations.
4.1.1.3 When to modify real‑time protection configuration
Real‑time protection is the most essential component of maintaining
a secure system. Therefore, please be careful when modifying its
parameters. We recommend that you only modify its parameters

13
in specific cases. For example, if there is a conflict with a certain
application or real‑time scanner of another antivirus program.
After installation of ESET NOD32 Antivirus, all settings are optimized
to provide the maximum level of system security for users. To restore
the default settings, click the Default button located at the bottom‑
right of the Real‑time file system protection window (Advanced
Setup > Antivirus and antispyware > Real‑time file system
protection).
4.1.1.4 Checking real‑time protection
To verify that real‑time protection is working and detecting viruses,
use a test file from eicar.com. This test file is a special harmless file
detectable by all antivirus programs. The file was created by the EICAR
company (European Institute for Computer Antivirus Research) to test
the functionality of antivirus programs. The file eicar.com is available
to download at http://www.eicar.org/download/eicar.com
4.1.1.5 What to do if the real‑time protection does not work
In the next chapter, we describe problem situations that may arise
when using real‑time protection, and how to troubleshoot them.
Real‑time protection is disabled
If real‑time protection was inadvertently disabled by a user, it needs to
be reactivated. To reactivate real‑time protection, navigate to Setup
> Antivirus and antispyware and click Enable in the Real‑time file
system protection section of the main program window.
If real‑time protection is not initiated at system startup, it is probably
due to the disabled option Automatic real‑time file system
protection startup. To enable this option, navigate to Advanced
Setup (F5) and click Real‑time file system protection in the
Advanced Setup tree. In the Advanced setup section at the bottom
of the window, make sure that the Automatic real‑time file system
protection startup check box is selected.
Real‑time protection does not detect and clean infiltrations
Make sure that no other antivirus programs are installed on your
computer. If two real‑time protection shields are enabled at the same
time, they may conflict with each other. We recommend that you
uninstall any other antivirus programs on your system.
Real‑time protection does not start
If real‑time protection is not initiated at system startup (and the
Automatic real‑time file system protection startup option is
enabled), it may be due to conflicts with other programs. If this is the
case, please consult ESET‘s Customer Care specialists.
4.1.2 Email protection
Email protection provides control of email communication
received through the POP3 protocol. Using the plug‑in program for
Microsoft Outlook, ESET NOD32 Antivirus provides control of all
communications from the email client (POP3, MAPI, IMAP, HTTP).
When examining incoming messages, the program uses all advanced
scanning methods provided by the ThreatSense scanning engine.
This means that detection of malicious programs takes place even
before being matched against the virus signature database. Scanning
of POP3 protocol communications is independent of the email client
used.
4.1.2.1 POP3 checking
The POP3 protocol is the most widespread protocol used to receive
email communication in an email client application. ESET NOD32
Antivirus provides protection of this protocol regardless of the email
client used.
The module providing this control is automatically initiated at
operating system startup time and is then active in memory. For
the module to work correctly, please make sure it is enabled – POP3
checking is performed automatically with no need for reconfiguration
of the email client. By default, all communication on port 110 is
scanned, but other communication ports can be added if necessary.
Port numbers must be delimited by a comma.
Encrypted communication is not controlled.
4.1.2.1.1 Compatibility
Certain email programs may experience problems with POP3 filtering
(e.g. if receiving messages with a slow Internet connection, timeouts
may occur due to checking). If this is the case, try modifying the way
control is performed. Decreasing the control level may improve the
speed of the cleaning process. To adjust the control level of POP3
filtering, navigate to Antivirus and antispyware > Email protection
> POP3 > Compatibility.
If Maximum eciency is enabled, infiltrations are removed from
infected messages and information about the infiltration is inserted
before the original email subject (the options Delete or Clean must be
activated, or Strict or Default cleaning level must be enabled)
Medium compatibility modifies the way messages are received.
Messages are gradually sent to the email client – after the last part
of the message is transferred, it will be scanned for infiltrations.
However, the risk of infection increases with this level of control.
The level of cleaning and the handling of tag messages (notification
alerts which are appended to the subject line and body of emails) is
identical to the maximum eciency setting.

14
With the Maximum compatibility level, the user is warned by an
alert window which reports the receipt of an infected message.
No information about infected files is added to the subject line or
to the email body of delivered messages and infiltrations are not
automatically removed. Deleting infiltrations must be performed by
the user from the email client.
4.1.2.2 Integration with Microsoft Outlook, Outlook Express,
Windows Mail
Integration of ESET NOD32 Antivirus with email clients increases the
level of active protection against malicious code in email messages.
If your email client is supported, this integration can be enabled in
ESET Smart Security. If integration is activated, the ESET NOD32
Antivirus toolbar is inserted directly into the email client, allowing
for more ecient email protection. The integration settings are
available through Setup > Enter entire advanced setup tree… >
Miscellaneous >Email client integration. This dialog window allows
you to activate integration with the supported email clients. Email
clients which are currently supported include Microsoft Outlook,
Outlook Express and Windows Mail.
Email protection is started by the activation of the Enable email
protection check box in Advanced Setup (F5) > Antivirus and
antispyware > Email protection.
4.1.2.2.1 Appending tag messages to email body
Each email controlled by ESET NOD32 Antivirus can be marked by
appending a tag message to the subject or email body. This feature
increases the level of credibility for the addressee and if an infiltration
is detected, it provides valuable information about the threat level of a
given email/sender.
The options for this functionality are available through Advanced
setup > Antivirus and antispyware protection > Email protection.
The program can Append tag messages to received and read mail,
as well as Append tag messages to sent mail. Users also have the
ability to decide whether tag messages should be appended to all
email, to infected email only, or not at all.
ESET NOD32 Antivirus also allows the user to append messages to
the original subject of infected messages. To enable appending to the
subject, select the options Append note to the subject of received
and read infected email and Append note to the subject of sent
infected email.
The content of the notifications can be modified in the Template
field added to the subject of infected email. The above‑mentioned
modifications can help to automate the process of filtering infected
email, as it allows you to filter email with a specific subject (if
supported in your email client) to a separate folder.
4.1.2.3 Removing infiltrations
If an infected email message is received, an alert window is displayed.
The alert window shows the sender name, the email, and name of
the infiltration. In the lower part of the window, the options Clean,
Delete or Leave are available for the detected object. In almost all
cases, we recommend that you select either Clean or Delete. In
special situations, when you wish to receive the infected file, select
Leave. If Strict cleaning is enabled, an information window with no
options available for infected objects is displayed.
4.1.3 Web access protection
Internet connectivity is a standard feature in a personal computer.
Unfortunately, it has also become the main medium for transferring
malicious code. Because of this, it is essential that you carefully
consider your Web access protection. We strong recommend that
the Enable web access protection option is activated. This option
is located in Advanced Setup (F5) > Antivirus and antispyware
protection > Web access protection.

15
4.1.3.1 HTTP
Web access protection’s primary function is to monitor the
communication between Internet browsers and remote servers,
according to the rules of the HTTP (Hypertext Transfer Protocol)
protocol. ESET NOD32 Antivirus is by default configured to use the
HTTP standards of most Internet browsers. However, the HTTP
checking setup options can be partially modified in the section Web
access protection > HTTP. In the HTTP filter Setup window, you
can enable or disable HTTP checking with the option Enable HTTP
checking. You can also define the port numbers which are used by the
system for the HTTP communication. By default, the port numbers 80,
8080 and 3128 are used. HTTP trac on any port can be automatically
detected and scanned, by adding additional port numbers, separated
by a comma.
4.1.3.1.1 Blocked / excluded addresses
The HTTP checking setup allows you to create user‑defined lists of
Blocked and Excluded URL (Uniform Resource Locator) addresses.
Both dialog windows contain the buttons Add,Edit, Remove and
Export, allowing you to easily manage and maintain the lists of
specified addresses. If an address requested by the user is in the list of
blocked addresses, it will not be possible to access the address. On the
other hand, addresses in the list of excluded addresses are accessed
with no checking for malicious code. In both lists, the special symbols
*(asterisk) and ?(question mark) can be used. The asterisk substitutes
any character string, and the question mark any symbol. Particular
care should be taken when specifying excluded addresses, because
the list should only contain trusted and safe addresses. Similarly, it is
necessary to make sure that the symbols * and ?are used correctly in
this list.
4.1.3.1.2 Web browsers
ESET NOD32 Antivirus also contains the Web browsers feature,
which allows the user to define whether the given application is a
browser or not. If an application is marked as a browser by the user, all
communication from this application is monitored regardless of the
port numbers involved in the communication.
The Web browsers feature complements the HTTP checking feature,
as HTTP checking only takes place on predefined ports. However,
many Internet services utilize dynamically changing or unknown
port numbers. To account for this, the Web browser feature can
establish control of port communications regardless of the connection
parameters.
The list of applications marked as browsers is accessible directly
from the Web browsers submenu of the HTTP branch. This section
also contains the submenu Active mode, which defines the
checking mode for Internet browsers. The Active mode is useful
because it examines transferred data as a whole. If it is not enabled,
communication of applications is monitored gradually in batches.
This decreases the eectiveness of the data verification process, but
it also provides higher compatibility for the listed applications. If no
problems occur while using it, we recommend that you enable the
active checking mode by selecting the check box next to the desired
application.
4.1.4 Computer scan
If you suspect that your computer is infected (it behaves abnormally),
run an On‑demand computer scan to examine your computer
for infiltrations. From a security point of view, it is essential that
computer scans are not just run when an infection is suspected, but
regularly as part of routine security measures. Regular scanning

16
provides detection of infiltrations which were not detected by the
real‑time scanner at the time they were saved to the disk. This can
happen if the real‑time scanner was disabled at the time of infection,
or if the virus signature database is obsolete.
We recommend that you run an On‑demand scan at least once
or twice a month. Scanning can be configured as a scheduledtask
through Tools > Scheduler.
4.1.4.1 Type of scan
Two types are available. The Standard scan quickly scans the system
with no need for further configuration of the scan parameters. The
Custom scan…allows the user to select any of the predefined scan
profiles, as well as choose scan objects from the tree structure.
4.1.4.1.1 Standard scan
Standard scan is a user‑friendly method which allows the user to
quickly launch a computer scan and clean infected files with no need
for user intervention. Its main advantages are easy operation with
no detailed scanning configuration. Standard scan checks all files on
local drives and automatically cleans or deletes detected infiltrations.
The cleaning level is automatically set to the default value. For more
detailed information on types of cleaning, see Cleaning (see page 18).
The standard scanning profile is designed for users who wish to quickly
and easily scan their computers. It oers an eective scanning and
cleaning solution without requiring an extensive configuration process.
4.1.4.1.2 Custom scan
Custom scan is an optimal solution if you wish to specify scanning
parameters such as scan targets and scanning methods. The
advantage of Custom scan is the ability to configure the parameters in
detail. The configurations can be saved to user‑defined scan profiles,
which can be useful if scanning is repeatedly performed with the same
parameters.
To select scan targets, use the drop‑down menu of the quick target
selection feature or select targets from the tree structure listing all
devices available on the computer. Furthermore, you can choose
from three cleaning levels by clicking Setup... > Cleaning. If you are
only interested in scanning the system with no additional actions
performed, select the Scan without cleaning check box.
Performing computer scans using the Custom scan mode is suitable
for advanced users with previous experience using antivirus programs.
4.1.4.2 Scan targets
The Scan targets drop‑down menu allows you to select files, folders
and devices (disks) to be scanned for viruses.
Using the quick scan targets menu option, you can select the
following targets:
Local drives – controls all system hard drives
Removable media –diskettes, USB storage devices, CD/DVD
Network drives –all mapped drives
A scan target can also be more precisely specified by entering the path
to the folder or file(s) you wish to include in scanning. Select targets
from the tree structure listing all devices available on the computer.
4.1.4.3 Scan profiles
The preferred computer scan parameters can be saved to profiles.
The advantage of creating scan profiles is that they can be used
regularly for scanning in the future. We recommend that you create
as many profiles (with various scan targets, scan methods and other
parameters) as the user regularly uses.
To create a new profile that can be used repeatedly for future scans,
navigate to Advanced setup (F5) > On‑demand computer scan.
Click the Profiles... button on the right to display the list of existing
scan profiles and the option to create a new one. The following
ThreatSense engine parameters setup describe each parameter
of the scan setup. This will help you create a scan profile to fit your
needs.
Example:
Suppose that you want to create your own scan profile and the
configuration assigned to the profile Smart scan is partially suitable.
But you don’t want to scan runtime packers or potentially unsafe
applications and you also want to apply Strict cleaning. From the

17
Configuration profiles window, click the Add... button. Enter the
name of your new profile in the Profile name field, and select Smart
scan from the Copy settings from profile: drop‑down menu. Then
adjust the remaining parameters to meet your requirements.
4.1.5 ThreatSense engine parameters setup
ThreatSense is the name of the technology consisting of complex
threat detection methods. This technology is proactive, which means
it also provides protection during the early hours of the spread of
a new threat. It uses a combination of several methods (code analysis,
code emulation, generic signatures, virus signatures) which work
in concert to significantly enhance system security. The scanning
engine is capable of controlling several data streams simultaneously,
maximizing the eciency and detection rate. ThreatSense technology
also successfully eliminates rootkits.
The ThreatSense technology setup options allow the user to specify
several scan parameters:
File types and extensions that are to be scanned▪
The combination of various detection methods▪
Levels of cleaning, etc.▪
To enter the setup window, click the Setup... button located in
any module‘s setup window which uses ThreatSense technology
(see below). Dierent security scenarios could require dierent
configurations. With this in mind, ThreatSense is individually
configurable for the following protection modules:
Real‑time file system protection▪
System startup file check▪
Email protection▪
Web access protection▪
On‑demand computer scan▪
The ThreatSense parameters are highly optimized for each module,
and their modification can significantly influence system operation.
For example, changing parameters to always scan runtime packers,
or enabling advanced heuristics in the real‑time file system
protection module could result in a system slow‑down (normally,
only newly‑created files are scanned using these methods). Therefore,
we recommend that you leave the default ThreatSense parameters
unchanged for all modules except Computer scan.
4.1.5.1 Objects setup
The Objects section allows you to define which computer
components and files will be scanned for infiltrations.
Operating memory –Scans for threats that attack the operating
memory of the system.
Boot sectors –Scans boot sectors for the presence of viruses in the
master boot record
Files –Provides scanning of all common file types (programs, pictures,
audio, video files, database files, etc.)
Email files –Scans special files where email messages are contained
Archives –Provides scanning of files compressed in archives
(.rar, .zip, .arj, .tar, etc.)
Self‑extracting archives –Scans files which are contained in
self‑extracting archive files, but typically presented with a .exe
extension
Runtime packers – runtime packers (unlike standard archive types)
decompress in memory, in addition to standard static packers
(UPX, yoda,ASPack, FGS, etc.).
4.1.5.2 Options
In the Options section, the user can select the methods to be used when
scanning the system for infiltrations.The following options are available:
Signatures – Signatures can exactly and reliably detect and identify
infiltrations by their name using virus signatures.
Heuristics – Heuristics is an algorithm that analyzes the (malicious)
activity of programs. The main advantage of heuristic detection is
the ability to detect new malicious software which did not previously
exist, or was not included in the list of known viruses (virus signatures
database).
Advanced heuristics –Advanced heuristics comprise a unique
heuristic algorithm developed by ESET optimized for detecting
computer worms and trojan horses written in high level programming
languages. Due to advanced heuristics, the detection intelligence
of the program is significantly higher.
Adware/Spyware/Riskware –This category includes software which
collects various sensitive information about users without their
informed consent. This category also includes software which displays
advertising material.
Potentially unsafe applications –Potentially unsafe applications is
the classification used for commercial, legitimate software. It includes
programs such as remote access tools, which is why this option is
disabled by default.

18
Potentially unwanted applications –Potentially unwanted
applications are not necessarily intended to be malicious, but they
may aect the performance of your computer in a negative way.
Such applications usually require consent for installation. If they are
present on your computer, your system behaves dierently (compared
to the state before their installation). The most significant changes
include unwanted pop‑up windows, activation and running of hidden
processes, increased usage of system resources, changes in search
results, and applications communicating with remote servers.
4.1.5.3 Cleaning
The cleaning settings determine the behavior of the scanner during
the cleaning of infected files. There are 3 levels of cleaning:
No cleaning
Infected files are not cleaned automatically. The program will display
a warning window and allow the user to choose an action.
Default level
The program will attempt to automatically clean or delete an infected
file. If it is not possible to select the correct action automatically,
the program will oer a choice of follow‑up actions. The choice of
follow‑up actions will also be displayed if a predefined action could
not be completed.
Strict cleaning
The program will clean or delete all infected files (including archives).
The only exceptions are system files. If it is not possible to clean them,
the user is oered an action to take in a warning window.
Warning:
In the Default mode, the entire archive file is deleted only if all files in
the archive are infected. If the archive also contains legitimate files,
it will not be deleted.If an infected archive file is detected in the Strict
cleaning mode, the entire archive will be deleted, even if clean files are
present.
4.1.5.4 Extensions
An extension is part of the file name delimited by a period.
The extension defines the type and content of the file. This section
of the ThreatSense parameter setup lets you define the types of files
to scan.
By default, all files are scanned regardless of their extension.
Any extension can be added to the list of files excluded from scanning.
If the Scan all files option is unchecked, the list changes to show
all currently scanned file extensions. Using the Add and Remove
buttons, you can enable or prohibit scanning of desired extensions.
To enable scanning of files with no extension, select the
Scan extensionless files option.
Excluding files from scanning has its purpose if the scanning of certain
file types prevents the program using the extensions to run properly.
For example, it may be advisable to exclude the .edb, .eml and .tmp
extensions when using the MS Exchange server.
4.1.6 An infiltration is detected
Infiltrations can reach the system from various entry points; web
pages, shared folders, via email, or from removable computer devices
(USB, external disks, CDs, DVDs, diskettes, etc.).
If your computer is showing signs of malware infection, e.g. it is
slower, often freezes, etc., we recommend that you do the following:
Open ESET NOD32 Antivirus and click▪Computer scan
Click▪Standard scan
(for more information, see Standard scan).
After the scan has finished, review the log for the number▪
of scanned, infected and cleaned files.
If you only wish to scan a certain part of your disk, click Custom scan
and select targets to be scanned for viruses.
As a general example of how infiltrations are handled in ESET Smart
Security, suppose that an infiltration is detected by the real‑time file
system monitor, which uses the Default cleaning level. It will attempt
to clean or delete the file. If there is no pre‑defined action to take for
the real‑time protection module, you will be asked to select an option
in an alert window. Usually, the options Clean, Delete and Leave are
available. Selecting Leave is not recommended, since the infected
file(s) would be left untouched. The exception to this is when you are
sure that the file is harmless and has been detected by mistake.

19
Cleaning and deleting
Apply cleaning if a clean file has been attacked by a virus which has
attached malicious code to the cleaned file. If this is the case, first
attempt to clean the infected file in order to restore it to its original
state. If the file consists exclusively of malicious code, it will be
deleted.
If an infected file is“locked“ or in use by a system process, it will usually
only be deleted after it is released (normally after a system restart).
Deleting files in archives
In the Default cleaning mode, the entire archive will be deleted only
if it contains infected files and no clean files. In other words, archives
are not deleted if they also contain harmless clean files. However, use
caution when performing a Strict cleaning scan – with Strict cleaning
the archive will be deleted if it contains at least one infected file,
regardless of the status of other files in the archive.
4.2 Updating the program
Regular updating of the system is the basic premise for obtaining
the maximum level of security provided by ESET Smart Security.
The Update module ensures that the program is always up to date.
This is done in two ways – by updating the virus signature database
and by updating all system components.
Information about the current update status can be found by clicking
Update, including the current version of the virus signature database
and whether an update is required. In addition, the option to activate
the update process immediately – Update virus signature database
–is available, as well as basic update setup options such as the user
name and password to access ESET’s update servers.
The information window also contains details such as the date
and time of the last successful update and the number of the virus
signature database. This numeric indication is an active link to ESET’s
web site, listing all signatures added within the given update.
NOTE: The User name and Password is provided by ESET after
purchase of ESET Smart Security.
4.2.1 Update setup
The update setup section specifies the update source information,
such as the update servers and authentication data for these servers.
By default, the Update server: field is set to Choose automatically.
This value ensures that the update files will automatically be
downloaded from the ESET server with the least network trac load.
The update setup options are available from the Advanced Setup (F5)
tree, under Update.
The list of currently existing update servers is accessible via the
Update server: drop‑down menu. To add a new update server, click
Edit... in the Update settings for selected profile section and then
click the Add button.
Authentication for update servers is granted by the User name and
Password which were generated and sent to the user by ESET after
purchase of the product license.
4.2.1.1 Update profiles
For various update configurations, it is possible to create user‑defined
update profiles which can be used for a given update task. Creating
various update profiles is especially useful for mobile users, as the
Internet connection properties regularly change. By modifying the
update task, mobile users can specify that if it is not possible to
update the program using the configuration specified in My Profile,
the update will be performed using an alternative profile.
The Selected profile drop‑down menu displays the currently selected
profile. By default, this entry is set to My profile. To create a new
profile, click the Profiles... button and then click the Add... button
and enter your own Profile name. When creating a new profile, you
can copy settings from an existing one by selecting it from the Copy
settings from profile: drop‑down menu.
Within the profile setup, you can specify the update server to which
the program will connect and download updates; any server from
the list of available servers can be used, or a new server can be added.
The list of existing update servers is accessible via the Update server:
drop‑down menu. To add a new update server, click Edit… in the
Update settings for selected profile section and then click the Add
button.

20
4.2.1.2 Advanced update setup
To view the Advanced update setup, click the Setup... button.
Advanced update setup options include configuration of Update
Mode, HTTP Proxy, LAN and Mirror.
4.2.1.2.1 Update mode
The Update mode tab contains options related to the program
component update.
In the Program component update section, three options are
available:
Never update program components▪
Always update program components▪
Ask before downloading program components▪
Selecting the option Never update program components ensures
that after a new program component update has been issued by ESET,
it will not be downloaded and no program component update will
actually take place on the given workstation. The Always update
program components option means that program component
updates will be performed each time a new update is available
on ESET‘s update servers, and that program components will be
upgraded to the downloaded version.
Select the third option, Ask before downloading program
components to ensure that the program will ask the user to confirm
downloading of program component updates at the moment such
updates are available. In this case, a dialog window containing
information about the available program component updates will
be displayed, with the option to confirm or refuse it. If confirmed,
updates are downloaded and new program components will be
installed.
The default option for a program components update is Ask before
downloading program components.
After installation of a program component update, it is necessary to
restart the system in order to provide full functionality of all modules.
The section Restart after program component upgrade allows you
to select one of the following three options:
Never restart computer
▪
Oer computer restart if necessary▪
If necessary, restart computer without notifying▪
The default option for restarting is Oer computer restart if
necessary. Selection of the most appropriate options for program
component updates within the Update mode tab depends on
each individual workstation, since that is where these settings are
to be applied. Please be aware that there are dierences between
workstations and servers – e.g. restarting the server automatically
after a program upgrade could cause serious damage.
4.2.1.2.2 Proxy server
To access the proxy server setup options for a given update profile:
Click Update in the Advanced Setup tree (F5) and then click the
Setup... button to the right of Advanced update setup. Click the
HTTP Proxy tab and select one of the three following options:
Use global proxy server settings▪
Do not use proxy server▪
Connection through a proxy server▪ (connection defined by the
connection properties)
Selecting the Use global proxy server settings option will use the
proxy server configuration options already specified within the
Miscellaneous > Proxy server branch of the Advanced Setup tree.
Select the Do not use proxy server option to explicitly define that no
proxy server will be used for updating ESET Smart Security.
The Connection through a proxy server option should be chosen
if a proxy server is to be used for updating ESET NOD32 Antivirus
and is dierent from the proxy server specified in the global settings
(Miscellaneous > Proxy server). If so, the settings should be specified
here: Proxy server address, communication Port, plus User name
and Password for the proxy server if required.
This option should also be selected if the proxy server settings were
not set globally, but the ESET NOD32 Antivirus will connect to a proxy
server for updates.
The default setting for the proxy server is Use global proxy server
settings.