Avast! Professional Edition 4.8 is a collection of award winning, high-end technologies that work in perfect synergy, having one common goal: to protect your system and valuable data against computer viruses, spyware and rootkits. It represents a best-in-class antivirus solution for any Windows-based workstation.

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.









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