Quick Answer: What Are The 3 Types Of Viruses?

What is the another name of sleeper virus?

Sleeper Virus – Downadup or Conficker Worm Warnings – Hoax-Slayer..

What are the 4 types of computer viruses?

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.More items…•Jul 23, 2020

What is a sleeper virus?

Sleeper virus The sleeper virus exploits private information stored in a computer. It generally steals personal and financial information from private and corporate networks.

Is Trojan a virus?

A Trojan horse, or Trojan, is a type of malicious code or software that looks legitimate but can take control of your computer. … A Trojan is sometimes called a Trojan virus or a Trojan horse virus, but that’s a misnomer. Viruses can execute and replicate themselves. A Trojan cannot.

What is computer Anti Virus?

Antivirus software, or anti-virus software (abbreviated to AV software), also known as anti-malware, is a computer program used to prevent, detect, and remove malware. … However, with the proliferation of other kinds of malware, antivirus software started to provide protection from other computer threats.

How can avoid computer viruses?

6 tips to avoid getting a virus on your devices from the internetInstall antivirus software. If you want to avoid getting a virus on your devices from the internet, installing and running antivirus software is important. … Be careful with email attachments. … Patch your operating system and applications. … Avoid questionable websites. … Avoid pirated software. … Backup your computer.

What was the worst computer virus in history?

Mydoom1. Mydoom – $38 billion. The worst computer virus outbreak in history, Mydoom caused estimated damage of $38 billion in 2004, but its inflation-adjusted cost is actually $52.2 billion. Also known as Novarg, this malware is technically a “worm,” spread by mass emailing.

What are the top 5 computer viruses?

Here are the top ten notorious computer viruses of all time.Morris Worm. Let us start our journey with Morris Worm or the “Great Worm”, which is believed to be the pioneer among computer worms distributed through the internet. … Nimda. … ILOVEYOU. … SQL Slammer. … Stuxnet. … CryptoLocker. … Conficker. … Tinba.More items…•Jul 1, 2020

Which is the not type of virus?

Which of the following is not a type of virus? Explanation: Types of viruses are System or Boot Sector Virus, Direct Action Virus, Resident Virus, Multipartite Virus, Polymorphic Virus, Overwrite Virus, Space-filler Virus, File infectors, Macro Virus, Rootkit virus. Trojan does not come under types of virus.

What is the best virus?

The best antivirus 2021 in full:Bitdefender Antivirus. 2021’s best antivirus offers rock-solid virus protection and features. … Norton AntiVirus. Solid protection with genuinely useful features. … Kaspersky Anti-Virus. … Trend Micro Antivirus. … Avira antivirus. … Webroot SecureAnywhere AntiVirus. … Avast antivirus. … Sophos Home.More items…

What is a Trojan Horse attack?

A Trojan horse is a type of malware that downloads onto a computer disguised as a legitimate program. A Trojan horse is so-called due to its delivery method, which typically sees an attacker use social engineering to hide malicious code within legitimate software.

How are virus born?

Some viruses may have evolved from bits of DNA or RNA that “escaped” from the genes of a larger organism. The escaped DNA could have come from plasmids (pieces of naked DNA that can move between cells) or transposons (molecules of DNA that replicate and move around to different positions within the genes of the cell).

What is the full form of virus?

The full meaning of the virus is Vital Information Resources Under Siege.

Who made iloveyou virus?

Onel De GuzmanCreation. ILOVEYOU was created by Onel De Guzman, a college student in Manila, Philippines, who was 24 years old at the time.

What did the brain virus do?

The virus slows down the floppy disk drive and makes seven kilobytes of memory unavailable to DOS. Brain was written by Amjad Farooq Alvi and Basit Farooq Alvi, who at the time lived in Chah Miran, near Lahore Railway Station, in Lahore, Pakistan.

How many types of virus are there?

9 Common Types of Computer Viruses.

What are viruses and its types?

Multipartite Virus – A virus which can attack both, the boot sector and the executable files of an already infected computer is called a multipartite virus….Types of Computer Virus.Logical ReasoningQuantitative AptitudeVerbal AbilityCurrent AffairsStatic GKBanking Awareness

What is type of virus?

A virus is a fragment of code embedded in a legitimate program. … On reaching the target machine a virus dropper(usually trojan horse) inserts the virus into the system. For more details, refer this. Various types of virus : File Virus : This type of virus infects the system by appending itself to the end of a file.

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