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 للمتضررين بالفايروسات معلومات هامه ...
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What is a virus?
A virus is a piece of code that uses a computer's resources to spread and replicate. The replication occurs without the user's knowledge.
How does my computer get infected by a virus?
Different viruses have different ways of infecting a computer or floppy disk. Infection can occur if you start your computer from an already infected disk, use an infected file or application on your computer, or use your disk in an infected computer that then spreads the infection to your disk. You can also get viruses from opening e-mail attachments that are infected.
What are the most common types of viruses?
The most common type of virus currently is the macro virus. The second most common is the boot sector infector. Other common viruses that infect applications are called file infectors. Most viruses now prevalent are one of these types or are a combination of them.
What is a macro virus?
Any virus that uses "higher level" programming features can be considered a macro virus. Previously, many viruses were created using lower level system code to infect and damage computer files. Occasionally, viruses would be created using macro language tools, but the tools were not very powerful or flexible. Viruses were hard to create.
To allow users the ability to write custom routines (macros) in applications like Word and Excel, Microsoft included with these applications a version of Visual BASIC, a "higher level" programming language that was powerful and easy to use -- and easy to create viruses with.
The prevalence of Visual BASIC and Microsoft Office means that most macro viruses affect either Word or Excel. There are other macro viruses written for non-Microsoft Office products but they are a small number in comparison.
How can I tell if my computer has been infected by a virus?
Your system may have a virus if you notice odd or unreliable behavior with your computer. This doesn't "prove" that your computer is infected, but it does indicate something that needs attention and perhaps intervention. Often the search for an infection leads to finding corrupted or damaged files or applications, or even incipient system problems, which have nothing to do with a virus infection. You know your computer better than anyone else, and if it begins to operate in a way that seems "wrong" to you, you should start investigating.
What are common symptoms to look for?
Symptoms of an infection vary depending on the type of virus you have, but there are some general guidelines. A common symptom of a boot sector infector is problems with booting: the system doesn't boot or displays odd messages when booting. Your software may note a change in the boot sector or memory map.
Symptoms of file infectors can be executables that used to work but are now failing to load correctly. Your antiviral package may indicate that something "goes resident" in memory and stays there after running an application.
A macro virus infection is usually not as subtle as file infectors or boot sector infectors. With a macro virus all your documents may only offer you the option to save them as templates. You may notice "extra" macros that did not come with your word processing package and that you did not create.
As soon as you note a symptom, investigate! You may not have a virus, or even a serious problem, but don't take chances.
How do I protect my computer against viral infections?
Protecting your system from viruses is relatively easy; you just have to be aware of what is going into your computer and onto your disks.
1. Install and use an up-to-date antiviral software. 2. Check all software before installing it. Just because it is shrink-wrapped or on CD does not mean it cannot be infected. Computer stores have been known to reshrink-wrap returned software and sell it again. 3. Download software only from trusted sites that you are familiar with such as www.shareware.com, then check the software after downloading. 4. Check disks after using them in other computers. 5. Beware of any security patches to your web browser. Disable automatic unarchiving or launching of applications and attachments. 6. Know your system and be aware of any changes or odd behavior.
اوصي باستعمال هذا البرنامج لحمايه الكمبيوتر من الفيروسات وهو مجانا وعن تجربتي الشخصيه اقدر اقول انه اكثر من رائع ...
http://download.com.com/3000-2144-10045910.html?part=69...bj=dlpage&tag=button
(عدل بواسطة عاصم المهدي on 04-13-2004, 00:39 AM)
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| العنوان |
الكاتب |
Date |
| للمتضررين بالفايروسات معلومات هامه ... | عاصم المهدي | 04-12-04, 10:43 PM |
 Re: للمتضررين بالفايروسات معلومات هامه ... | عاصم المهدي | 04-12-04, 11:20 PM |
 Re: للمتضررين بالفايروسات معلومات هامه ... | سجيمان | 04-12-04, 11:27 PM |
| Re: للمتضررين بالفايروسات معلومات هامه ... | عاصم المهدي | 04-13-04, 00:32 AM |
 Re: للمتضررين بالفايروسات معلومات هامه ... | سارة منصور | 04-13-04, 10:04 AM |
| Re: للمتضررين بالفايروسات معلومات هامه ... | Saifeldin Gibreel | 04-14-04, 05:05 AM |
| Re: للمتضررين بالفايروسات معلومات هامه ... | عاصم المهدي | 05-01-04, 11:24 AM |
| Re: للمتضررين بالفايروسات معلومات هامه ... | عاصم المهدي | 05-01-04, 11:49 AM |
| Re: للمتضررين بالفايروسات معلومات هامه ... | عاصم المهدي | 05-01-04, 12:00 PM |
 Re: للمتضررين بالفايروسات معلومات هامه ... | عاصم المهدي | 05-01-04, 12:13 PM |
 Re: للمتضررين بالفايروسات معلومات هامه ... | عاصم المهدي | 05-01-04, 12:46 PM |
| نرجو أن يكون في ميزان حسناتك | elhilayla | 05-01-04, 01:03 PM |
 Re: للمتضررين بالفايروسات معلومات هامه ... | سارة منصور | 05-01-04, 10:38 PM |
| Re: للمتضررين بالفايروسات معلومات هامه ... | عاصم المهدي | 05-04-04, 04:42 AM |
| Re: للمتضررين بالفايروسات معلومات هامه ... | faisal44 | 05-04-04, 10:10 AM |
| Re: للمتضررين بالفايروسات معلومات هامه ... | سارة منصور | 05-09-04, 08:49 AM |
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