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Description: | The latest version of this program is 4.8.1296
Anti-spyware built-in
Spyware is software installed on a computer that is designed to collect information about the
computer user, often without their knowledge or consent. This can result in so called identity
theft, or theft of valuable information e.g. bank or credit card details or proprietary business
data. Spyware is often developed by organized crime rings rather than lone individuals and may be
installed by a virus.
Certified by West Coast Lab s Checkmark process, avast has full anti-spyware capabilities built-in,
to make your protection even more complete.
Anti-rootkit built-in
Rootkits are programs that install on your computer while keeping themselves and their activities
hidden to remain invisible to the use. They represent a significant security risk on both home
computers and company networks and are notoriously difficult to find and remove. Rootkits themselves
are normally installed by a virus or other type of malware infection and it is therefore highly
recommended that computer users have up to date antivirus/anti-spyware software installed and
running on their computer. One such system is avast antivirus.
Based on the class-leading GMER technology, avast can now scan your live system for rootkit
infections; no boots disks are required. If a rootkit is discovered, it is initially disabled and
then if it can be safely removed without affecting the performance of the computer, it is removed.
avast antivirus includes a virus database which can be automatically updated to provide continuous
protection against rootkits.
Strong self-protection
Some viruses may attempt to switch off a computer s antivirus software. To help keep your protection
working, even against the latest threats that may try to disable your security protection, avast
has best-in-class strong self-protection built in, to make sure, no matter what you face, avast
carries on protecting your valuable data and programs. This is based on the multi-award winning
avast antivirus technology and provides an extra layer of security to ensure your data and programs
are always protected.
Antivirus kernel
The latest version of avast antivirus kernel features outstanding detection abilities, together
with high performance. You can expect 100 detection of In-the-Wild viruses viruses already
spreading between users and excellent detection of Trojan horses.
The kernel is certified by ICSA Labs; it frequently takes part in the tests of Virus Bulletin
magazine, often yielding the VB100 award.
The avast engine also features outstanding unpacking support. It can scan inside the following
archives: ARJ, ZIP, MIME all associated formats , MAPI Outlook pst files , DBX Outlook Express
archives , RAR, TAR, GZIP, CAB, BZIP2, ZOO, ACE, ARC, LHA/LHX, TNEF winmail.dat , CPIO, CHM, RPM,
ISO, 7ZIP and SIS. It also supports a number of executable packers such as PKLite, Diet, UPX,
ASPack, PeShield, FSG, MEW etc. .
Last, but not least, it can also scan for viruses hidden in Alternate data streams on NTFS volumes.
Simple User Interface
The Simple User Interface is used to start on-demand scanning, work with the results and change
various options. Basic resident protection settings can be modified here.
The Simple User Interface is the main application of avast 4 Home Edition. You can start additional
avast modules from here, such as the Virus Chest, Updater or Log Viewer.
The appearance of the Simple User Interface is very flexible. It supports so-called skins
changeable appearance of the application , so you can change the interface to suit you. The main
package contains three skins, with additional skins available from our web pages.
Enhanced User Interface
In addition to the Simple User Interface, the Professional Edition presents the Enhanced User
Interface, giving you access to all features and possibilities for extensive scanning control.
Unlike the Simple User Interface, the scanning is performed by so-called tasks . First, you define
a task, including various parameters - areas to scan, what to scan, how to scan, etc. Having the
task, you can run it possibly repeatedly . Each task generates a list of results, which you can
work with later.
Another key feature, closely connected with tasks, is the Scheduler. This feature gives you the
ability to schedule the tasks running, either one-time or periodically.
Additionally, it is possible to set all existing scanning options, a feature not available in the
Simple User Interface.
Resident protection
Resident protection the real-time protection of the computer system , is one of the most important
features of an antivirus program today. avast features a powerful resident module that is able to
detect a virus before it has any chance to infect your computer.
avast Professional Edition contains resident protection of the computer file system and a resident
module for e-mails and news.
File system protection ensures that no virus will be started on the computer. It offers a wide range
of settings, such as the possibility to specify that files will be scanned during copying, or
scanning will include files with a given set of extensions only.
E-mail/News protection consists of two independent modules; first, there is a generic scanner
working on the SMTP/POP3/IMAP4/NNTP protocol level. It is capable of protecting any existing e-mail
client that uses these protocols. Second, there is a special plugin for MS Outlook only; with mail
scanning completely transparent, requiring no special settings.
A new feature of version 4 is heuristic analysis of e-mail scanners. This feature can protect
against new, unknown viruses and worms that are not possible to detect by the usual means. The
heuristic module performs a thorough investigation of every e-mail message and watches for
suspicious signs that might announce virus presence. When the number of those signs exceeds the
user-defined level, the message is considered dangerous and the user is warned.
Script Blocker
The resident protection of the Professional Edition includes an additional module, not contained in
the Home Edition, called Script Blocker. This module watches all scripts being executed in the
operating system so-called WSH scripts - Windows Scripting Host , and scans all the scripts run as
a part of a web page within your web browser Internet Explorer, Netscape Navigator and Mozilla .
P2P and IM Shields
Avast features a module for the protection of IM Instant Messaging, chat programs, and a module
for the protection of P2P peer-to-peer programs. The list of supported IM and P2P programs is
extensive, with more than 30 programs currently supported.
While chat itself would not pose any serious security risks in terms of viruses, today s IM
applications are far from being just chatting tools: most support more or less sophisticated file
sharing methods - which may quite easily lead to virus infections, if not properly monitored.
The P2P protection module doesn t need much explanation - today s P2P networks such as Kazaa
contain potentially thousands of infected files, and effective protection is essential.
Web Shield
Web Shield is a unique feature of avast that enables it to monitor and filter all HTTP traffic
coming from Web sites on the Internet. Since an increasing number of viruses and other malware,
such as adware, spyware and dialers are being distributed via the World Wide Web, the need for
effective countermeasures has also increased. Web Shield acts as a transparent HTTP proxy and is
compatible with all major web browsers, including Microsoft Internet Explorer, FireFox, Mozilla and
Opera.
Unlike most competitive solutions, Web Shield s impact on browsing speed is almost negligible. This
is because of a unique feature called Intelligent Stream Scan that lets the Web Shield module scan
objects on-the-fly, without the need of caching. Stream scanning is performed in operating memory
only without the necessity to flush the contents to disk , providing maximum possible throughput.
Automatic updates
Automatic updates are another key need in virus protection. Both the virus database and the program
itself can be updated automatically. The updates are incremental, with only new or missing data
downloaded: thus reducing the transfer heavily. The typical size of a virus database updates are
tens of KB; program updates typically are in the hundreds of KB range.
If your Internet connection is persistent such as an always-on broadband connection , then updates
are performed completely automatically at fixed time intervals. If you connect to the Internet only
occasionally, avast watches your connection and tries to perform the update when you are online.
PUSH updates
A special feature of the Professional Edition is PUSH updates. It is a dramatic change in the
philosophy of updates. Usually, every installed program checks occasionally for new version
availability. PUSH updates, however, are initialized by our server; they result in your computer
quickly responding and performing the necessary update. The system is based on the SMTP protocol as
used for e-mail messages . The update itself is controlled by the avast resident e-mail providers
MS Outlook and Internet Mail .
The whole system is protected by asymmetric ciphers and is resistant to unauthorized misuse.
Virus Chest
The Virus Chest can be thought of as a folder on your disk drive, having special properties that
make it a safe, isolated place suitable for storing certain files. You can work with the files in
the Chest, though with some security restrictions.
The main properties of the Virus Chest are complete isolation from the rest of the operating system.
No outside process, such as a virus, may access the files inside, and the fact that the files inside
the Chest may not be run executable , there is no danger in storing viruses there.
System integration
avast antivirus features outstanding integration into your system. A scan can be started directly
from Windows Explorer, by clicking a folder or a file with your right mouse button and selecting the
corresponding choice from the menu.
A special screen-saver is also provided, that, when running, performs virus scanning. avast
antivirus works together with your favorite screen-saver, so you don t have to change your personal
settings to use it.
A new option in this release is the boot-time scan Windows NT/2000/XP/Vista 32bit only . This
important feature allows a user to instigate scanning before a virus is activated, in the case that
a virus is suspected to be active on your computer already.
Command-line scanner
For experienced users, the Professional Edition features a command-line scanner. Scanning can be
controlled by many arguments and switches; to use as a pipe filter; and a special STDIN/STDOUT mode
is available.
The module is intended to be used in BATCH programs. Its output is the same as the output from the
Enhanced User Interface tasks including the report files .
Integrated avast Virus Cleaner
Since version 4.1, avast includes Virus Cleaner, a tool designed for the complete removal of most
common infections from already-infected computers. So now avast is capable of reliably healing, and
not just detecting, the most common malware.
The number of viruses/worms supported by the Virus Cleaner is constantly growing. For the most
up-to-date information we suggest visiting Virus Cleaner s own page. Note: For emergency purposes,
we also offer Virus Cleaner as a standalone product, capable of running without installing avast .
Support for 64-bit Windows
avast Home/Professional now fully supports the 64-bit Windows platform. ALWIL Software is
anticipating massive growth of this platform, as Windows XP 64-Bit Edition will support up to 32 GB
of RAM and 16 TB of virtual memory, enabling applications to run faster when working with large data
sets. Applications can preload substantially more data into virtual memory, allowing rapid access by
the 64-bit extensions of the processor. This reduces the time for loading data into virtual memory
or seeking, reading, and writing to data storage devices, making applications run faster and more
efficiently.
Regular 32-bit antivirus applications are unable to operate correctly on the 64-bit Windows
platform, because they rely on 32-bit kernel-mode drivers. The latest version of avast uses native
64-bit drivers, delivering the same level of protection as the 32-bit Windows environments. The
installation package is the same for 32-bit and 64-bit versions - the setup program automatically
detects the operating system it is running on and installs all necessary files. You may find more
information on avast Antivirus and Windows x64 Edition page.
Internationalization
Commitment to internationalization is one of the key benefits of avast . During the last 2 years,
avast has been translated to a number of languages, currently the list of supported languages is:
English, Arabic, Bulgarian, Catalan, Chinese both Simplified and Traditional , Czech, Danish,
Dutch, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Malay, Norwegian,
Polish, Portuguese both Brazilian and Portugal , Romanian, Russian, Serbian, Slovak, Slovenian,
Spanish, Swedish, Turkish.
Network Shield
A new resident protection module was added to avast 4.5: the Network Shield. This module provides
protection against known Internet worms/attacks. It analyzes all network traffic and scans for
malicious content. It can be viewed as a lightweight firewall or, more precisely, an IDS Intrusion
Detection System .
The Network Shield is only available on NT-based systems Windows NT/2000/XP/Vista . Main features
ANTIVIRUS KERNEL
Almost 100 detection
Outstanding performance
Reasonable memory requirements
ICSA certified
USER INTERFACE
Memory test during the program startup
Very intuitive Simple User Interface
Enhanced User Interface MS Outlook style
Testing of whole disks or just selected folders
Defining and running of antivirus tests
Working with the scan results - actions for infected files
Storing the scan results history
Virus encyclopedia
Log Viewer
Various appearances - skin support
Running from Explorer context menu
Antivirus screen-saver
Boot-time scan
Command-line scanner
UPDATES
The system of incremental updates guarantees low traffic
Updates can be completely automatic
Standard updates are provided 2 times a week
PUSH updates immediately when published RESIDENT PROTECTION
Standard Shield protects the file system
Generic SMTP/POP3/IMAP4 scanner
Specific MS Outlook plugin
Heuristic analysis in e-mail modules
Script Blocker
REPAIRING
Certain strong capabilities of direct repair especially macroviruses
Repairing files using automatically generated Virus Recovery Database VRDB
OTHER
Task Scheduler
News delivery system: iNews
4 default preset tasks for typical scanning
Possibility to set any test details
Report files
PLATFORMS
Windows 95
Windows 98
Windows Me
Windows NT 4 No Server
Windows 2000 No Server
Windows XP No Server
Windows Vista
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