How Trojan Horse Infect The Computer?

How does a Trojan virus work? Trojans infect a device by tricking its user into downloading seemingly harmless software that contains malicious codes. Once downloaded, installed, and launched, the malicious code executes.

How does a Trojan affect or infect a computer?

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 designed to damage, disrupt, steal, or in general inflict some other harmful action on your data or network. A Trojan acts like a bona fide application or file to trick you.

How does a Trojan horse work to damage a computer system?

A Trojan Horse (Trojan) is a type of malware that disguises itself as legitimate code or software. Once inside the network, attackers are able to carry out any action that a legitimate user could perform, such as exporting files, modifying data, deleting files or otherwise altering the contents of the device.

How is Trojan spread into the system?

Recipients who were curious enough to open the attachment became infected, the trojan would overwrite files on the machine and then send itself to their entire contact list. This simple but effective propagation method caused the virus to spread to millions of computers.

What damage can a Trojan cause?

A virus or a Trojan may delete critical system elements, thus disabling the OS, overload the network with a DDoS attack, or otherwise negatively affect the system’s operability. Fatal problems are often caused by a bug in the virus’ code or principle of operation.

What is Trojan horse in simple words?

A Trojan horse is thus anything that looks innocent but, once accepted, has power to harm or destroy—for example, a computer program that seems helpful but ends up corrupting or demolishing the computer’s software.

Can Trojan control your computer?

Some of the most common types of Trojan virus include: Backdoor Trojans – This type of Trojan allows hackers to remotely access and control a computer, often for the purpose of uploading, downloading, or executing files at will.

How does a Trojan horse infect a computer system quizlet?

A Trojan does not replicate (i.e. infect other files), nor does it make copies of itself as worms do. A Worm scans the network for other security loopholes and then copies itself to other computers. Often, it uses a computer network to spread itself, relying on security failures on the target computer to access it.

How does a virus infect a computer?

How do computer viruses spread? Viruses can be spread several ways, including via networks, discs, email attachments or external storage devices like USB sticks. Since connections between devices were once far more limited than today, early computer viruses were commonly spread through infected floppy disks.

Why is it called Trojan horse?

The term Trojan horse stems from Greek mythology. According to legend, the Greeks built a large wooden horse that the people of Troy pulled into the city. During the night, soldiers who had been hiding inside the horse emerged, opened the city’s gates to let their fellow soldiers in and overran the city.

What is the disadvantage of Trojan horse?

After it executes, this allows cybercriminals to perform many actions on the user’s computer like deleting data from files, modifying data from files, and more. Now like many viruses or worms, Trojan Horse does not have the ability to replicate itself.

Why is Trojan horse used?

The story of the Trojan Horse is well-known. First mentioned in the Odyssey, it describes how Greek soldiers were able to take the city of Troy after a fruitless ten-year siege by hiding in a giant horse supposedly left as an offering to the goddess Athena.

What is the main purpose of a Trojan?

Most Trojans are typically aimed at taking control of a user’s computer, stealing data and inserting more malware on to a victim’s computer.

What is an example of Trojan horse?

Banking Trojans are ubiquitous examples of malware. This Trojan type targets online activities and personal information used for banking. Given the growing popularity of online banking and the carelessness of bank account holders, this is a viable approach for cyber-attackers to obtain funds quickly.

How do hackers use Trojan?

A hacker can use Trojans to edit and delete the files present on a victim system, or to observe the activities of the victim. Trojans can steal all your financial data like bank accounts, transaction details, PayPal related information, etc. These are called Trojan-Banker.

Can Trojan infect other files?

A Trojan will hide within seemingly harmless programs, or will try to trick you into installing it. Unlike viruses, Trojans do not self-replicate by infecting other files or computers.

Does Trojan delete files?

FINAL ADVICE. A trojan horse is a stealthy malware that works silently in the background and hides in different folders. It is a serious threat because it can delete, change, and copy critical data on the computer.

How do viruses infect computers and files?

Typically, computer viruses spread through malicious online downloads, infected email attachments, or by plugging in infected hardware like an external flash drive (USB stick). Computer viruses can spread through almost any method of file sharing, as long as the virus can avoid detection by antivirus programs.

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.

Who created Trojan virus?

programmer John Walker
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.

Do Trojan horses carry viruses or worms?

Trojan horses, unlike viruses and worms, are not self-replicating and don’t reproduce by infecting other files, although some can carry a worm or virus. Instead, they are a piece of programming code disguised as another program or file.