BSELIB

We know that computer play important role in our life in these days. We need computer in almost every aspect of our life like to do our jobs, to finish our papers, and even to save important data. Therefore people concern about how to protect our computers. As we know, the biggest enemy of my computer is virus. There are many viruses that are ready to bring our computer down. The best way to solve this virus problem is of course using antivirus. There are many antiviruses that are available in these days.

The problem is not all of them are reliable. Some of them are even fake antivirus. Fake antivirus is the same bad as the virus itself. They can cause some errors in our computer. They cause some disordering in our computer software. Of course, if this kind of thing happens, sooner or later our software can be broken. The question is how we can remove security suite fake antivirus. It is not easy. Therefore we need help from web-site with malware-removal advices.

The best site that provides us with Security Suite step-by-step removal instructions (free) is Hands-oncorp.com. For the detail information about the tips and guides to solve our computer problem especially related with fake antivirus, visiting the site above is what we need.

Is your computer running too slow, even if you upgrade its processor and RAM? If that’s the matter, there’re two problems that happen in your computer. First, your computer system and data might need to update or second, your computer might suffer from virus attack. If the cause of all problems in your computer is virus, you need to upgrade your antivirus with better one. And to find it, you can visit ProtectionVirus.info.

This website has complete and detail review about best virus protection software that you can get. The review will explain everything about virus protection software that you can use. You will know how the software can protect your computer, how effective it can defend your computer from virus attack and many more. So, with this review, you will know which software that can give your computer real protection.

Here, you also can order that antivirus software that you want and of course you’ll get the best price. This website also has many articles about computer protection that you can read for your reference. Therefore, visit this website now and get the best help to find best antivirus for your computer. You can cure your computer, give it greater protection from virus attack and make it have good performance. Visit now!

For anyone who owns a computer, the prospect of being infected with computer viruses is both dreaded and hated. Its effects appear the moment the computer starts doing strange things like slowing down or not being able to open some files and programs. Not only is it so annoying, it can also lead to a waste of precious time and effort. If left unchecked, it could destroy many things from important files and documents to the computer unit itself.

Generally, computer viruses are malwares or malicious programs that are designed to damage or harm computers. They can come from a variety of sources like file attachments in emails and the use of diskettes in transferring files between computer units. Aside from that, it can also be acquired in file sharing networks. Websites that offer downloads are also very likely sources of computer viruses.

Different types of computer virus exist and each one produces different effects from producing a silly message on your screen to damaging data files and disks. The most common of these computer viruses include: boot sector viruses, multi “ partite viruses, parasitic viruses, link viruses, companion viruses and macro viruses. They may produce different effects but all of them share one common characteristic. All of them must be executed in order to be operational.

One of the most common mistake of many amateur computer users is that they tend to generalize everything malware as a virus. It’s important to know that differences between the different malware types as this can help a lot especially in the cleaning and fixing afterwards.

Trojans are different from computer viruses because of the fact that they don’t replicate. They are usually masked as interesting programs and files. However, once they are run, they will do a completely different task from what it is supposed to do. Trojans are used by many hackers to gain information on control on other people’s accounts and computers.

Worms, on the other hand, are malwares that are usually spread through security holes in network connections. They are different from computer viruses because they don’t need programs in order to spread. Instead it scans computer networks for security holes which it infiltrates and then replicates in. Then it starts scanning other computers to be infiltrated in again.

Once a computer virus is detected on your unit, many things can be done in order to resolve it. The important thing that needs to be done is to evaluate the type of virus and the extent of infection. This helps in identifying what files and programs are affected as well as minimize its spread to others. Once the infection is properly diagnosed, the proper “cure can be easily administered.

Protecting your computers against viruses is important if you want to avoid the hassle of dealing with their occurrence. The use of updated anti- virus programs is one of the most effective ways to do so. Regular scanning of files and disks must be done in order to minimize the risks of being with one. Also being extra careful especially in receiving e-mails, transferring files and downloading programs, is greatly recommended.

Computer viruses may be deadly but with the right knowledge and methods, its risks can easily be minimized and reduced.

PC Tools iAntivirus for Mac
PC Tools iAntivirus guards against Mac only malware, including viruses, worms, trojans, spyware and adware. Unlike some Mac antivirus software, PC Tools iAntivirus doesn’t cover Windows-based malware, which helps keep performance costs and system impact low but may not be the best bet choice in a mixed Mac/Windows environment. PC Tools iAntivirus is free for home (and home office) use and currently supports Intel-based Macs running OS X 10.5 only. An unobtrusive and efficient Mac antivirus software option that dedicated Mac users will want to try. Currently in beta.
Simple but Elegant
Like other PC Tools offerings, iAntivirus steers clear of bloat – providing exactly the features you’d expect in an antivirus software as unobtrusively as possible. For example, there’s an option to disable the dock icon if you want to keep things tidy. But if you do leave the iAntivirus dock icon enabled, you can drag and drop files and folders there for quick and easy scans.
PC Tools iAntivirus features realtime protection, scheduled quick scans, and scheduled updates. Monitoring mode keeps iAntivirus working truly in the background, ideal for those who don’t want to be disturbed by alerts or anyone trying to conserve laptop batteries.
PC Tools iAntivirus detects and removes Mac-specific malware only. This can be either very good or very bad, depending on your perspective. While a Mac-only focus keeps iAntivirus running lighter and faster than other Macintosh antivirus software, it also means a Mac user could inadvertently share files infected with Windows-based malware. Macro viruses, for example, aren’t detected by iAntivirus – corporate users sharing Office documents between Windows and Mac users will want to make sure macro virus protection on both sides is enabled.
PC Tools iAntivirus is currently in beta, supports Intel-based Mac OS X v10.5 only, and is free for home (or home office) use.

Intego VirusBarrier X5: Mac Antivirus Software Review
It’s pretty hard not to like Intego VirusBarrier X5 with the eye candy interface it sports. Fortunately, VirusBarrier not only looks cool, it performs well too. VirusBarrier provides realtime signature-based and behavior-based scanning and guards against both Mac-specific and Windows-based malware. You can, however, turn off the scanning for Windows-only malware if you wish. At $70 for a single license, VirusBarrier is one of the pricier Mac antivirus options available – but it’s also one of the best.
Full Featured; Streamlined Performance
With some antivirus developers, a Mac antivirus offering is an afterthought. But at Intego, Mac security is their core business and that focus translates into a higher quality product. Intego closely monitors security events impacting Mac OS users, thus they tend to be one of the first to add detection for new Mac malware and Mac-vulnerable exploits.
Intego VirusBarrier X5 sports a sleek, modern interface that’s an improvement over the boring box windows of most other programs. The fresh look is backed up with on-access realtime scanning, a Trusted Zone to exclude files/folders from scans, and scans for iPod and iPhone touch malware. VirusBarrier can scan for Windows malware, which helps to prevent inadvertent spread in mixed environments. Mac-only users can disable the Windows malware scanning if desired. Email scanning (on send/receive) is also included, along with a quarantine feature, behavior analysis, scanning of compressed files and archives, and all the other features we expect to find in our Windows antivirus protection but too seldom find in Mac antivirus software offerings.
System performance is excellent; VirusBarrier maintains a very unobtrusive background presence – though it would be nice if the dock icon could be disabled during install. On the plus side, you can drag new or suspect files to the dock icon for a quick scan.

Read the rest of this entry »
Read more…

An anti-virus software program is a computer program that can be used to scan files to identify and eliminate computer virus and other malicious software (malware).

Anti-virus software typically uses two different techniques to accomplish this:

• Examining files to look for known viruses by means of a virus dictionary
• Identifying suspicious behavior from any computer program which might indicate infection

Most commercial anti-virus software uses both of these approaches, with an emphasis on the virus dictionary approach.

Virus dictionary approach
In the virus dictionary approach, when the anti-virus software examines a file, it refers to a dictionary of known viruses that have been identified by the author of the anti-virus software. If a piece of code in the file matches any virus identified in the dictionary, then the anti-virus software can then either delete the file, quarantine it so that the file is inaccessible to other programs and its virus is unable to spread, or attempt to repair the file by removing the virus itself from the file.

To be successful in the medium and long term, the virus dictionary approach requires periodic online downloads of updated virus dictionary entries. As new viruses are identified “in the wild”, civically minded and technically inclined users can send their infected files to the authors of anti-virus software, who then include information about the new viruses in their dictionaries.

Dictionary-based anti-virus software typically examines files when the computer’s operating system creates, opens, and closes them; and when the files are e-mailed. In this way, a known virus can be detected immediately upon receipt. The software can also typically be scheduled to examine all files on the user’s hard disk on a regular basis.

Although the dictionary approach is considered effective, virus authors have tried to stay a step ahead of such software by writing “polymorphic viruses”, which encrypt parts of themselves or otherwise modify themselves as a method of disguise, so as to not match the virus’s signature in the dictionary.

Suspicious behavior approach
The suspicious behavior approach, by contrast, doesn’t attempt to identify known viruses, but instead monitors the behavior of all programs. If one program tries to write data to an executable program, for example, this is flagged as suspicious behavior and the user is alerted to this, and asked what to do.

Unlike the dictionary approach, the suspicious behavior approach therefore provides protection against brand-new viruses that do not yet exist in any virus dictionaries. However, it also sounds a large number of false positives, and users probably become desensitized to all the warnings. If the user clicks “Accept” on every such warning, then the anti-virus software is obviously useless to that user. This problem has especially been made worse over the past 7 years, since many more nonmalicious program designs chose to modify other .exes without regards to this false positive issue. Thus, most modern anti virus software uses this technique less and less.

Other ways to detect viruses
Some antivirus-software will try to emulate the beginning of the code of each new executable that is being executed before transferring control to the executable. If the program seems to be using self-modifying code or otherwise appears as a virus (it immeadeatly tries to find other executables), one could assume that the executable has been infected with a virus. However, this method results in a lot of false positives.

Yet another detection method is using a sandbox. A sandbox emulates the operating system and runs the executable in this simulation. After the program has terminated, the sandbox is analysed for changes which might indicate a virus. Because of performance issues this type of detection is normally only performed during on-demand scans.

Issues of concern

Macro viruses, arguably the most destructive and widespread computer viruses, could be prevented far more inexpensively and effectively, and without the need of all users to buy anti-virus software, if Microsoft would fix security flaws in Microsoft Outlook and Microsoft Office related to the execution of downloaded code and to the ability of document macros to spread and wreak havoc.

User education is as important as anti-virus software; simply training users in safe computing practices, such as not downloading and executing unknown programs from the Internet, would slow the spread of viruses, without the need of anti-virus software.

Computer users should not always run with administrator access to their own machine. If they would simply run in user mode then some types of viruses would not be able to spread.

The dictionary approach to detecting viruses is often insufficient due to the continual creation of new viruses, yet the suspicious behavior approach is ineffective due to the false positive problem; hence, the current understanding of anti-virus software will never conquer computer viruses.

There are various methods of encrypting and packing malicious software which will make even well-known viruses undetectable to anti-virus software. Detecting these “camouflaged” viruses requires a powerful unpacking engine, which can decrypt the files before examining them. Unfortunately, many popular anti-virus programs do not have this and thus are often unable to detect encrypted viruses.

Companies that sell anti-virus software seem to have a financial incentive for viruses to be written and to spread, and for the public to panic over the threat.

What is a boot sector? All disks and hard drives are divided into small sectors. The first sector is called the boot sector and contains the Master Boot Record (MBR). The MBR contains the information concerning the location of partitions on the drive and reading of the bootable operating system partition. During the bootup sequence on a DOS-based PC, the BIOS searches for certain system files, IO.SYS and MS-DOS.SYS. When those files have been located, the BIOS then searches for the first sector on that disk or drive and loads the needed Master Boot Record information into memory. The BIOS passes control to a program in the MBR which in turn loads IO.SYS. This latter file is responsible for loading the remainder of the operating system.

What is a boot sector virus? A boot sector virus is one that infects the first sector, i.e. the boot sector, of a floppy disk or hard drive. Boot sector viruses can also infect the MBR. The first PC virus in the wild was Brain, a boot sector virus that exhibited stealth techniques to avoid detection. Brain also changed the volume label of the disk drive.

How to avoid boot sector viruses. Commonly, infected floppies and subsequent boot sector infections result from “shared” diskettes and pirated software applications. It is relatively easy to avoid boot sector viruses. Most are spread when users inadvertently leave floppy disks in the drive – which happen to be infected with a boot sector virus. The next time they boot up their PC, the virus infects the local drive. Most systems allow users to change the boot sequence so that the system always attempts to boot first from the local hard drive (C:\) or CD-ROM drive.

Disinfecting boot sector viruses. Boot sector repair is best accomplished by the use of antivirus software. Because some boot sector viruses encrypt the MBR, improper removal can result in a drive that is inaccessible. However, if you are certain the virus has only affected the boot sector and is not an encrypting virus, the DOS SYS command can be used to restore the first sector. Additionally, the DOS LABEL command can be used to restore a damaged volume label and FDISK /MBR will replace the MBR. None of these methods is recommended, however. Antivirus software remains the best tool for cleanly and accuarately removing boot sector viruses with minimal threat to data and files.

Creating a system disk. When disinfecting a boot sector virus, the system should always be booted from a known clean system disk. On a DOS-based PC, a bootable system disk can be created on a clean system running the exact same version of DOS as the infected PC. From a DOS prompt, type:

SYS C:\ A:\

and press enter. This will copy the system files from the local hard drive (C:\) to the floppy drive (A:\).

If the disk has not been formatted, the use of FORMAT /S will format the disk and transfer the necessary system files. On Windows 3.1x systems, the disk should be created as described above for DOS-based PC’s. On Windows 95/98/NT systems, click Start | Settings | Control Panel | Add/Remove Programs and choose the Startup Disk tab. Then click on “Create Disk”. Windows 2000 users should insert the Windows 2000 CD-ROM into the CD-ROM drive, click Start | Run and type the name of the drive followed by bootdisk\makeboot a: and then click OK. For example:

d:\bootdisk\makeboot a:

Follow the screen prompts to finish creating the bootable system disk. In all cases, after the creation of the bootable system disk, the disk should be write protected to avoid infection.

Today, having a computer is very important for us. We can do anything with computer such as browsing internet, compute, typing, drawing, etc. It is the most essential part in your life. Sometimes, you can find your computer system is broken. Usually viruses which become the main cause to broken your computer system.

Antivirus software is used to detect, prevent, and remove computer viruses, Trojan horses, and worms. Some programs can also remove adware or spyware which is forms of malware. Virus is detected as unknown executable code and it can be infected you computer program. It is very easy for a user to be infected with a new malware without signature exists yet. By having antivirus software you can easily predict what a file will do if you are open by emulating the virus in a sandbox. You can also analyzing what it does to see if you take some malicious actions. If it does, it is mean as malicious.

It is important for you to add antivirus software in your computer. You can go to Best3webhosts.com to get the best antivirus software. In this site you can easily compare three antivirus softwares. You can compare between kapersky, norton, and spyware. You can read each review about them. All of them are give the best service if you always updating them.