![]() System tools such as Scandisk return incorrect valuesīelow is a list of the most common types of viruses,Ī polymorphic virus is an encrypted virus that hides itself from anti-virus through encrypted (scrambled) data and then decrypts itself to be able to spread through the computer.Disk space and filenames change for no reason.Hard disk operates excessively or is inaccessible.Unusual noises come from your keyboard, hard disk.Items and images on your screen are distorted and unusual images and text appears.The computer takes longer to load programs/applications.The most common symptoms that indicate your computer has been infected. ![]() With over 1000 different types of viruses, there is a variety of different parts of the computer they can attack e.g. For instance, a program that has a virus in it will place the virus in the system’s memory each time that program is run. Viruses in general, start working and spreading once you start using the application or program to which the virus is attached. However, some spyware such as keyloggers may be installed by the owner of a shared, corporate, or public computer on purpose in order to secretly monitor other users. Typically, spyware is secretly installed on the user’s personal computer. The presence of spyware is typically hidden from the user and can be difficult to detect. Spyware is a type of malware (malicious software) installed on computers that collects information about users without their knowledge.It will then copy itself to the machine through the security hole and will start replicating itself. The worm will scan the network for machines that carry a particular security hole. A worm is a small type of software that utilizes security holes and computer networks in order to replicate itself.It cannot automatically replicate itself. It is a computer program that claims to be a game but in actuality, will just do damage once you run it. There are email viruses which don’t need to be double-clicked in order to install themselves as they can launch while you are simply viewing the message. An email virus can travel through attachments in email messages and can automatically replicate itself by mailing itself to dozens or even hundreds of people on your list of contacts found in your online address book. Computer infections can come in several forms and your computer can “catch” one in several ways: In the same way as viruses harm peoples’ bodies, computer viruses can do considerable damage to computer systems. The purpose of it to disrupt the operation of the computer or the program. In the worst case scenario, it can even delete everything on your hard disk. A computer virus has the capacity to corrupt or to delete data on your computer and it can utilize an e-mail program to spread the virus to other computer systems. A computer virus is a computer program or code that can replicate itself and spread from one computer system to another system.
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