what is the main difference between a virus and a trojan

What Is The Main Difference Between A Virus And A Trojan?

1. A Virus is a malicious executable code attached to another executable file which can be harmless or can modify or delete data. Trojan Horse is a form of malware that capture some important information about a computer system or a computer network.Sep 18, 2020

What is the main difference between a computer virus a worm and a Trojan horse?

Virus is a software or computer program that connect itself to another software or computer program to harm computer system. Worms replicate itself to cause slow down the computer system. Trojan Horse rather than replicate capture some important information about a computer system or a computer network.

Is Trojan always a virus?

Once installed, a Trojan can perform the action it was designed for. A Trojan is sometimes called a Trojan virus or a Trojan horse virus, but that’s a misnomer. Viruses can execute and replicate themselves.

What is the main difference between a worm and a virus?

The primary difference between a virus and a worm is that viruses must be triggered by the activation of their host; whereas worms are stand-alone malicious programs that can self-replicate and propagate independently as soon as they have breached the system.

What is the difference between a computer worm and a Trojan horse quizlet?

Worm: A special type of computer virus that stores and then replicates itself. Usually transfer from computer to computer via email. Trojan Horse: A destructive piece of programming code that hides in another piece of programming code that looks harmless, such as a macro or e-mail message.

Who made Trojan horse virus?

Called ANIMAL, the first Trojan (although there is some debate as to whether this was a Trojan, or simply another virus) was developed by computer programmer John Walker in 1975, according to Fourmilab.

Is a Trojan worse than a virus?

A Trojan horse is not a virus. It is a destructive program that looks as a genuine application. Unlike viruses, Trojan horses do not replicate themselves but they can be just as destructive.

Can an iPhone get a Trojan virus?

Can iPhones get viruses? iPhone can’t get viruses, because iOS viruses are still only theoretical. It’s much more likely that you may need to delete malware from your Mac, remove viruses from a PC, or get rid of malware from your Android phone.

What is the most damaging computer virus?

MyDoom. MyDoom is considered to be the most damaging virus ever released—and with a name like MyDoom would you expect anything less? MyDoom, like ILOVEYOU, is a record-holder and was the fastest-spreading email-based worm ever.

What is a Trojan virus and what does it do?

Trojan viruses are a type of malware that invade your computer disguised as a real, operational programs. Once a trojan is inside your system, it can perform destructive actions before you even know it’s there.

What is the difference between a virus and a worm Cisco?

The primary difference between a virus and a worm is that viruses must be triggered by the activation of their host; whereas worms are stand-alone malicious programs that can self-replicate and propagate independently as soon as they have breached the system.

What are the different types of viruses and worms?

The Viruses and Worms subclass of malicious software programs includes the following:

  • Email-Worm.
  • IM-Worm.
  • IRC-Worm.
  • Net-Worm.
  • P2P-Worm.
  • Virus.

What distinguishes a virus from other types of malware?

Malware is a catch-all term for any type of malicious software, regardless of how it works, its intent, or how it’s distributed. A virus is a specific type of malware that self-replicates by inserting its code into other programs.

What is the most common means of virus distribution?

According to the U.S. Cybersecurity and Infrastructure Security Agency, infected email attachments are the most common means of circulating computer viruses. Most, but not all, computer viruses require a user to take some form of action, like enabling “macros” or clicking a link, to spread.

What is a worm quizlet?

Worm. a type of virus that spreads itself, not only from file to file, but also from computer to computer.

What was the first human virus?

The first human virus to be identified was the yellow fever virus. In 1881, Carlos Finlay (1833–1915), a Cuban physician, first conducted and published research that indicated that mosquitoes were carrying the cause of yellow fever, a theory proved in 1900 by commission headed by Walter Reed (1851–1902).

Was the Trojan War real?

For most ancient Greeks, indeed, the Trojan War was much more than a myth. It was an epoch-defining moment in their distant past. As the historical sources – Herodotus and Eratosthenes – show, it was generally assumed to have been a real event.

Is Trojan Horse illegal?

Creating and distributing trojan horse computer software is illegal, as is managing a botnet and using computers for malicious purposes. Defendants who are involved with a trojan horse scam can be charged with very serious computer crimes, including violations of the federal Computer Fraud and Abuse act.

Is a worm worse than a virus?

Usually, a worm is more dangerous than a virus, because it can spread more quickly. For example, a worm could infect all of your email contacts.

Is Malwarebytes safe?

Is Malwarebytes safe? Yes, Malwarebytes is safe. It has a decent antivirus scanner, real-time protection that offers multiple layers of protection against malware, system vulnerabilities, and online threats, and a browser extension that provides additional protection against phishing and malicious sites.

Is Spyware a virus?

Spyware is a type of virus that is specifically designed to steal information about your activity on your computer. Spyware writers have a number of different objectives, mainly fraudulent financial gain.

What is jailbreaking a phone?

To jailbreak a phone is to modify it so that you can enjoy unrestricted access to the entire file system. This access allows for changes that aren’t supported by the phone in its default state. … Jailbreaking an Android device is normally called rooting.

Does my iPhone 11 have a virus?

So, while the answer to the question “Can iPhones get viruses?” is ‘generally not’, iPhones have been known to get viruses, albeit rarely (and more likely if they have been jailbroken).

Can a Trojan virus access camera?

When a Trojan virus infects a device, it’s not just the webcam that is remotely accessed, it’s the whole computer. This means access to files, photos, banking and a range of data.

What is the most famous virus?

The Top 10 Worst Computer Viruses in History

  1. 10 worst computer viruses in history. …
  2. Mydoom – $38 billion. …
  3. Sobig – $30 billion. …
  4. Klez – $19.8 billion. …
  5. ILOVEYOU – $15 billion. …
  6. WannaCry – $4 billion. …
  7. Zeus – $3 billion. …
  8. Code Red – $2.4 billion.

What does the ILOVEYOU virus do?

The worm inflicts damage on the local machine, overwriting random types of files (including Office files, image files, and audio files; however after overwriting MP3 files the virus hides the file), and sends a copy of itself to all addresses in the Windows Address Book used by Microsoft Outlook.

WHO released the first PC virus?

The first IBM PC virus in the “wild” was a boot sector virus dubbed (c)Brain, created in 1986 by Amjad Farooq Alvi and Basit Farooq Alvi in Lahore, Pakistan, reportedly to deter unauthorized copying of the software they had written.

What are the risks of Trojan?

Trojan horses create five main risks for computers and mobile devices: (1) deleting files, (2) using the computer to infect other computers, (3) watching users through the webcam, (4) logging keystrokes, and (5) recording user names, passwords, and other personal information.

What is a logic bomb and how does it work?

A Logic Bomb is a piece of often-malicious code that is intentionally inserted into software. It is activated upon the host network only when certain conditions are met. Logic bombs execute their functions, or launch their payload, once a certain condition is met such as upon the termination of an employee.

Which of the following statements best describes the difference between a virus and a worm?

Which of the following best describes the difference between a virus and a worm? … A worm is malicious software that requires a host file to spread itself, whereas a virus is malicious software that does not require a host file to spread itself.

What is Trojan Horse in cyber security?

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.

What is the one thing that a virus a worm spyware and malicious code have in common What are the differences among these three threats a virus a worm and spyware?

Answer: Similarity – They threaten the computer system. Difference – Viruses damage the computer system, Worms slower the computer system and spyware gives information which is in the computer system to the hacker.

What is virus and types of virus?


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