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Computer Virus – Is A Specially Written Small Program

Virus

The computer virus – is a specially written small program that can “attribute” itself to other programs (i.e. to “infect” them), and also to carry out various undesirable actions on the computer. The program that contains any virus is known as “infected” program. When such program begins work at first management receives a virus. The virus finds and “infects” other programs, and also carries out any harmful actions (for example, spoils files or the table of placing of files on a disk, “litters” operative memory etc.). To mask a virus action on infection of other programs and harm drawing can be carried out not always, and, can be told, only in some certain conditions. After the virus has executed the actions necessary to it, it transfers control to the program it lives in, and it works the same way as usually. That is why the work of the infected program looks the same as the work of not infected.

Many versions of viruses are arranged so that at the beginning of the infected program the virus remains not noticed, i.e. before operating system reboot, in memory of the computer and from time to time infects programs and carries out harmful actions on the computer.

All actions of a virus can be carried out quickly enough and without delivery of any messages, therefore it is very difficultly for user to notice that there is something unusual in the computer.

While few programs are infected on the computer, virus presence can be almost imperceptible. However after some time something strange begins to happen on the computer, for example:

• some programs cease to work or start to work incorrectly;
• extraneous messages, symbols etc. are deduced on the screen;
• work on the computer is essentially slowed down;
• some files appear to be spoiled etc.

By this moment, as a rule, it is already a lot of (or even the majority) those programs which you use, are infected with a virus, and some files and disks are spoiled. Moreover, the infected programs from your computer could be already transferred by means of external carriers or on a network on other computers.
Some versions of viruses behave even more artfully. They imperceptibly infect in the beginning a great number of programs or disks, and then cause very serious damages, for example, they format the whole hard disk on the computer. And there are viruses which try to behave as more as possible imperceptibly, but gradually and gradually spoil the data on the hard disk of the computer.

Thus, the computer can be very serious if not to undertake measures on protection against viruses. For example, in the beginning of 1989 the virus written by American student Morrisom, had been infected and put out of action thousand of computers, including belonging to the Ministry of USA Defence. The author of that virus has been sentenced by court to three months of prison and the fine of 270 thousand dollars. Punishment could be even stricter, but the court has considered that the virus did not spoil the data but only bred it.

It is necessary to notice that to write a virus is not a difficult task and can be made by a student studying programming. More and more new viruses appear every day in the world…

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And it is very important that you follow a final piece of advice – today the Internet technologies give you a truly unique chance to choose exactly what you require for the best price on the market. Strange, but most of the people don’t use this chance. In real practice it means that you should use all the tools of today to get any info that you need.

Search Google and other search engines. Visit social networks and have a look on the accounts that are relevant to your topic. Go to the niche forums and participate in the discussion. All this will help you to create a true vision of this market. Thus, giving you a real opportunity to make a smart and nicely balanced decision.

P.S. And also sign up to the RSS on this blog, because we will everything possible to keep this blog tuned up to the day with new publications about the market of spyware blockers and any changes on it.

Tags: Adware, remove spyware, Spyware, spyware blockers, spyware removers
Posted in Computers · March 1st, 2010 · Comments (0)

Computer Mice Are The Main Computer Viruses Carriers

Virus infection

To reduce probability of infection of the computer by virus, and also to reduce to a minimum damage from infection it is necessary to observe following rules. You can use, of course, not all described means for preventive maintenance against infection with a virus, but only the ones you consider they are necessary.

Measures on protection against viruses can be broken into some groups.

Copying of the information and access differentiation:

1. It is necessary to have archival or reference copies of software packages used by you and the data and periodically you need to archive those files which you have created or have changed. Before archiving of files it is expedient to check up them on absence of viruses by means of antivirus. It is important to copy information often — then information losses at its casual destruction will be not so great.

2. You have also to copy on diskettes sector with the table of division of a hard disk, loading sectors of all logic disks and contents CMOS (non-volatile memory of the computer). Copying and restoration of this data can be made by means of program DiskTool of complex Norton Utilities.

3. It is necessary to establish protection against record on diskettes with files which should not be changed. On a hard disk it is expedient to create the logic disk protected from record, and to place on it programs and the data which should not be changed.

4. It is not necessary to copy the software from other computers as it can be infected by a virus.

Check outside data:

It is necessary to check up all disks brought from the outside by means of an antivirus.

Before connection to the Internet it is necessary to load the anti-virus program.

Protection against loading viruses:

1. Computers that contain BIOS (caused at initial loading by means of pressing of a certain combination of keys) with the configuration setup allow disconnect from a diskette, it is better to do when no loading viruses are terrible for the computer.

2. If you wish to reboot from a diskette, use only protected from record “reference” diskette with an operating system.

Some more advices:

1. You should not give access to your computer strange persons without you being with them, especially if they have disks, diskettes and etc. Fans of computer games are the most dangerous — they are capable not only not to observe any safety measures from viruses, but also to ignore any prevention of anti-virus means. Very often reason of infection of the computer has been a game brought on a disk that someone has played 10-15 mines on the computer.

2. To avoid access of casual persons to the computer it is impossible (for example, in the educational center), it is better all programs on a hard disk of the computer to have on the logic disk protected from record.

If you need to get a nice remove adware software or any helpful information about the topic of spyware blockers, please visit the hyperlinked site.

And it is very important that you follow a final piece of advice – today the Internet technologies give you a truly unique chance to choose exactly what you need for the best price on the market. Funny, but most of the people don’t use this opportunity. In real practice it means that you must use all the tools of today to get any info that you need.

Search Google or other search engines. Visit social networks and have a look on the accounts that are relevant to your topic. Go to the niche forums and join the online discussion. All this will help you to build up a true vision of this market. Thus, giving you a real chance to make a wise and nicely balanced decision.

And also sign up to the RSS on this blog, because we will everything possible to keep updating this blog with new publications about the market of spyware blockers and any changes on it.

Tags: Adware, remove spyware, Spyware, spyware blockers, spyware removers
Posted in Computers · March 1st, 2010 · Comments (0)