NEW VARIANTS VIRUS

Conficker
Is a worm that emerged in October 2008. Conficker able to attack Windows and the most widely found is Windows XP. Microsoft has issued a patch to stop this worm on 15 October 2008. And according to some observers in the field of security, Conficker have been attacked more than 2.5 million PC on 15 January 2009. Not satisfied with the attack that was made by Conficker, namely Conficker B, the virus is now ready to launch the new variants that Conficker C.

This variant appears as a form of resistance to security vendors, particularly some of the security vendors are trying to protect your entire PC from malicious virus attacks or some malware. For that to all PC users, especially those often connected with the Internet should always be cautious with this virus.

And according to information that has been circulating, virus attack to do this in a way make a connection to more than 75,000 between the different domains with each other to update the copy. And that we need to do to prevent the occurrence of these attacks, some of the largest IT companies, including Microsoft, Symantec, and a few others have tried to do the registration and re-Locking up the domain name on the site of their own. And that we need to do this so that the virus does not attack us on the PC is the way to the latest update from the Antivirus on the computer we have.

VARIOUS KINDS OF COMPUTER VIRUS

What is computer virus?
Virus or worm is a computer program that can be spread on the computer or network in a way to make copies of itself without the computer owner. The virus can cause a very harmful effect, for example, from displaying the message, steal data or even control your computer from distance.

How virus to infected your computer?
The first time a virus must be run before he was able to infect your computer. There are various ways that this virus can be executed by the victim, such as with glue him on a program the other. There is also the virus that way when you open a particular file type. Often the virus also take advantage of the rift in the security of your computer (the operating system or application), by using these things, the virus can run and will then spread itself automatically.

You can also receive a file that is infected with a virus attachment in your e-mail. Once you run the file, the virus code will run and start infected your computer and can also spread to all the files on your computer network.

Trojan horse
Trojan horse is a program that seems like a valid program or normal, but the actual program code with carrying functions that are very dangerous for your computer.

For example, the virus D Loader-L come from the e-mail attachment and is considered as an update program from Microsoft for Windows XP operating system. If you run this file then it will download the program and will utilize your computer to connect your computer to a particular website. The target, of course, to make a website before overload and ultimately can not be accessed properly by the other party. This is often called a denial of service attack or (DoS).

Trojan can not spread as fast as a virus, trojan because it does not make a copy of itself automatically. But in line with the development of the virus, the trojan horse can work together with the virus to propagate itself in the case. The virus is able to download a trojan to store data on your keyboard keystroke or steal the information on your computer. On the other hand, trojan also be used for a computer with a virus.

Worm
Worm can be similar to the virus but the worm does not require a carrier in this program or a document. Worm is able to make copies of it and use the network communication between computers to spread itself. Many viruses such as My Doom or Bagle worm work as the withdrawal and use e-mail to do forward itself to other parties.

Often disrupt the virus or you stop working on your computer when needed. In line with the development of the computer virus in the world at this time until the effects of this virus is more and more.

The virus can spread through e-mail, such as the Sobig virus, and to be able to create e-mail traffic which is very large, of course, will make the server become slow or even a crash. Even if it does not happen until the company who felt disturbed by incidents such as this server will be decided.

Steal personal data
Bugbear-D Worm, for example, able to store personal data about your keyboard keystroke, including passwords and so forth. Earlier recordings will usually be sent to the creator of the virus to be used more.

Use your computer to attack a site
MyDoom, for example, it infected many computers around the world to attack the SCO site traffic data is very large. This will make the site will extraordinary and will eventually crash and can not serve other users. This is called the common denial of service (DoS).

Leaving the others to hijack your computer
Some put the trojan virus backdoor on the computer and this will make the creator of the virus can be connected to the computer and can be used further in accordance with the desires.

Damage data
Virus compatible, for example, can make changes to the data you store on the MS Excel document.

Deleting data
Sircam virus, for example, attempt to remove or to overwrite your hard drive at a certain time the unexpected.

Disable hardware
Chernobyl virus, for example, trying to do overwrite the BIOS chip on 26 April and will make your computer will not work. Virus Netsky-D worm, for example, can make the computer beep beep spontaneously or suddenly for a few hours duration.

Displays a message
Cone-F virus, for example, will display a message if an element of political month of May shows. Damage your credibility. If the virus get forward itself from your computer to the computer of your customers or business partners your computer, then this will damage your reputation as an organization and they will no longer want to continue a business relationship with you or may claim compensation from your part.

Create your shame
PolyPost virus, for example, will make the document and post your name on the newsgroups that contain pornography.

PROTECT YOUR LAPTOP FROM VIRUSES

Protect it better than cure, so your laptop should be protected from virus attacks. If your laptop often interacts with the Internet, the possibility of thousands of virus will try to enter your laptop system. Indeed facilitate the spread of Internet viruses, especially at this time; a virus can spread itself to all the network computer in the network in just seconds. There are several steps to anticipate the virus in your laptop, which are:

• When you use the Windows operating system, make sure the operating system is the original. Because many of the benefits gained from using the original operating system, one of them is the operating system update.
• Use the recommended anti virus, good, and tested. You can use the free anti virus available on the internet, but keep in mind, the anti virus is free, usually after three months, the system updates will be stopped or reduced. So who should use an anti virus? Prices for anti virus at this time are not too expensive, only about USD 25 - 30. When you use the anti virus paying, then you should make sure that anti virus has representatives in the region.
• Ensure that the operating system that you always use in the update, because in fact the security hole is found by a hacker or viruses. This is why the system should be operating in the update. Besides secure from virus attacks, operating system update will also make your laptop run with the stable.
• Backups your data on a regular basis, this is to prevent the loss of your important data when your laptop was still exposed to the virus. If you often use floppy disks, USB flash or external hard disk, the laptop is used by many people, always remember to do anti virus scanning on the storage media.
• Be careful against with e-mail attachments. Until now, e-mail attachments are still the most preferred means by the virus to spread viruses. Besides easy to deceive the recipient of e-mail, the spread of the virus through e-mail attachments can also take place very quickly. Never open e-mail attachments before scanning program with anti-virus.
• You need to be careful when downloading a free program on the internet.

IDENTIFY FILES THAT ARE EASILY AFFECTED BY VIRUS

Maybe most of us only know the form of the virus exe file type (application) only, as most viruses such as exe files. In many types of files that potentially infected and can transmit the virus when running. So often we are not aware that the file is run it can contain the virus. With some types know it, hopefully we can be more careful. Here are some types of files that are often infected with the virus and can transmit most of the back when the file is run.

Script file
The file is a script file that contains the script / code and the program can be translated by a computer to directly control the software applications other. Some of these files include:

• BAT (Batch Files), is a script file in MS-DOS and Windows.
• Vbs (VBScript), Windows scripting language Visual Basic is limited.
• JS (JavaScript), this file can not be directly active, but is run by a web browser, through an HTML file.

File documents
File documents that are often infected with the virus is Microsoft Office files, especially DOC (Word, Excel and Access database). Virus Macro viruses usually form, which is active if the document is run and can infected template file, so that all the files will be opened further affected by the virus. Around the year 2007, starting a PDF file used by the virus to include certain code in the document. Usually the form of Trojan. Cons PDF used a virus to insert the code, so that when the PDF is run, a Trojan virus, which can install itself to the computer.

Executable binary files
Executable binary files, the file contents are translated by a computer program. This file consists of several types of Windows:

• EXE (executable / application), file type is a file that is often infected with the virus and most viruses also form exe. Many viruses that can be attached to the file, and so run, the virus spread and infected the original computer.
• DLL (Dynamic Link Library) and OCX the actual format of the same type of EXE, but not directly run, but used by other files such as EXE, so the virus can also infected this file type.
• SCR (screensaver), this file also like exe format only, which meant the file screensaver. When it starts, the screensaver will appear. Therefore, the virus often appears duplicate, so that when the screensaver is on, the actual virus is active.
• COM (Command File) can be Text or Binary files that run under DOS / MS-DOS. Early-generation form of the virus is likely this COM file.