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What is a computer virus?
What are the different types of viruses?
How does a computer virus work?
What are some examples of computer viruses?
- Macro Virus: Unlike most viruses which are written in a low-level language(like C or assembly language), these are written in a high-level language like Visual Basic.
- Source code Virus: It looks for source code and modifies it to include virus and to help spread it.
- Polymorphic Virus: A virus signature is a pattern that can identify a virus(a series of bytes that make up virus code). So in order to avoid detection by antivirus a polymorphic virus changes each time it is installed.
- Encrypted Virus: In order to avoid detection by antivirus, this type of virus exists in encrypted form. It carries a decryption algorithm along with it.
- Overview
- Computer Virus
- Signs of Virus
- Spread of Virus
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This article is about computer viruses and how to protect against them. It explains what a computer virus is, the different types of viruses, and common signs that a device may be infected with malware. The article also provides tips on how to avoid downloading viruses onto devices and introduces the Fortinet antivirus solution as an effective way ...
A computer virus is malicious software that spreads between computers and causes damage to data and software. It attaches to an executable host file, which results in its viral codes executing when a file is opened.
Common signs include slower performance, unwanted pop-up windows, unexpected program closures, system crashes, changes to homepage or browser settings.
Viruses can be spread via email attachments or infected code from compromised application stores and repositories. They require the victim to execute their code or payload for them to infect devices.
There are several types including resident/non-resident viruses, multipartite viruses, direct action viruses, browser hijackers etc., each with different methods for infecting systems and spreading across networks.
Learn what a computer virus is, how it spreads, and what types of viruses exist. Find out how to protect your device from viruses with antivirus software and other tips.
May 10, 2024 · Learn what a computer virus is, how it works, and how to prevent and remove it. Find out the difference between viruses and malware, the history of computer viruses, and the types of viruses that can infect your device.
Apr 28, 2022 · Learn what a computer virus is, how it works, and how it spreads. Find out the different types of viruses and how to prevent and protect against them.
- Josh Fruhlinger
Learn what a computer virus is, how it differs from other malware, and how to protect your system from it. Find out the history, types, and examples of computer viruses, and how to avoid them.
Jun 10, 2022 · Learn about different types of malware, such as macro, polymorphic, resident, and boot sector viruses, and how they infect and persist on computers. Find out how security pros categorize and deal with these threats in the context of cyber attacks.
A computer virus is an ill-natured software application or authored code that can attach itself to other programs, self-replicate, and spread itself onto other devices. When executed, a virus modifies other computer programs by inserting its code into them.
