What are the effects of computer virus?

What are the symptoms of a computer virus?

Slow computer performance.
Erratic computer behavior.
Unexplained data loss.
Frequent computer crashes.

What is a computer virus and types of virus?

A computer virus is one type of malware that inserts its virus code to multiply itself by altering the programs and applications. The computer gets infected through the replication of malicious code. Computer viruses come in different forms to infect the system in different ways. Boot Sector Virus.

What is Virus explain?

Definition: A computer virus is a malicious software program loaded onto a user’s computer without the user’s knowledge and performs malicious actions. It can self-replicate, inserting itself onto other programs or files, infecting them in the process.

What is virus types?

Boot sector virus. This type of virus can take control when you start — or boot — your computer.
Web scripting virus. This type of virus exploits the code of web browsers and web pages.
Browser hijacker.
Resident virus.
Direct action virus.
Polymorphic virus.
File infector virus.
Multipartite virus.

What is the 3 virus?

These “Your Windows is infected with (3) Virus” fake error messages are aimed to promote the installation of additional questionable content including web browser toolbars, optimization utilities and other products, all so the adware publisher can generate pay-per-click revenue.

How many types of virus are there?

7 types of virus – a short glossary of contemporary cyberbadness – Naked Security.

Where do viruses hide on your computer?

Viruses can be disguised as attachments of funny images, greeting cards, or audio and video files. Computer viruses also spread through downloads on the Internet. They can be hidden in pirated software or in other files or programs that you might download. Microsoft PC Security website.

What is Virus give example?

Virus: A microorganism that is smaller than a bacterium that cannot grow or reproduce apart from a living cell. Examples of viral illnesses range from the common cold, which can be caused by one of the rhinoviruses, to AIDS, which is caused by HIV. Viruses may contain either DNA or RNA as their genetic material.

What is Virus in information security?

A virus is a computer code or program, which is capable of affecting your computer data badly by corrupting or destroying them. A computer virus is actually a malicious software program or “malware” that, when infecting your system, replicates itself by modifying other computer programs and inserting its own code.

What is Virus How do we protect your computer?

Antivirus software protects your device from viruses that can destroy your data, slow down or crash your device, or allow spammers to send email through your account. Antivirus protection scans your files and your incoming email for viruses, and then deletes anything malicious.

How can you prevent computer viruses?

How to Prevent Computer Viruses: 9 Tips to Keep Your PC Safe

Use Strong Passwords. Let’s start with the basics—your passwords.
Keep Everything up to Date.
Use Antivirus Software.
Use a Firewall.
Install a Popup Blocker.
Beware of Email Phishing Scams.
Educate Your Family & Staff.
Know the Signs of Infection.

Where do computer viruses come from?

In the early, pre-internet days, viruses often spread from computer to computer via infected floppy disks. The SCA virus, for instance, spread amongst Amiga users on disks with pirated software. It was mostly harmless, but at one point as many as 40% of Amiga users were infected. Today, viruses spread via the internet.

Who invented virus in computer?

Amjad Farooq Alvi

Who is father of computer virus?

Von Neumann’s

What is the first computer virus?

Following Creeper, which was isolated within the realm of researchers, Elk Cloner was the first virus to be detected in the wild. Written in 1982 by a 15-year-old, it was a boot sector virus that infected Apple II computers.

Which is the first computer virus in India?

Brain (computer virus)

The boot sector of an infected floppy
Other names	Ashar (older variant)
Initial release	19 January 1986
Platform	IBM Personal Computer, IBM PC compatibles
Type	Boot sector computer virus

Who made Creeper virus?

Bob Thomas

Why computer viruses are created?

Proving a point – Sometimes a computer expert will create a virus to prove that a certain process will work, or that a certain network can be penetrated, or that certain antivirus software is effective. This is often a reason given by academics who try to prove their points by actions instead of by theories.

How many types of computer viruses are there?

What type of virus is the I Love You virus?

ILOVEYOU virus

Which virus is the most expensive virus in the world?

Mydoom was named by Craig Schmugar, an employee of computer security firm McAfee and one of the earliest discoverers of the worm.

What is the strongest virus in computer?

Mydoom virus