Difference between trojan and worm viruses

Trojan horse are executed through a program and interprets as utility software. Resident and Non -resident viruses are two types of Virus. Back orifice, Rootkit and Beast Trojan are some of the common Trojan horses. Virus replicates itself.

Trojan horse does not replicate itself. Recommended Articles. Article Contributed By :. Easy Normal Medium Hard Expert. Writing code in comment? Please use ide. It could be also defined as software with malicious intent. Some of them are discussed below. Virus: A program that can infect other programs by modifying them to include a possible evolved copy of itself. Virus replicates itself. Worms are also replicates itself. But Trojan horse does not replicate itself. Like worms, Trojan horse can also be controlled by remote.

Spreading rate of viruses are moderate. While spreading rate of worms are faster than virus and Trojan horse. And spreading rate of Trojan horse is slow in comparison of both virus and worms. The main objective of virus to modify the information.

The main objective of worms to eat the system resources. The main objective of Trojan horse to steal the information. Viruses are executed via executable files. Adversaries may use rootkits to hide the presence of programs, files, network connections, services, drivers, and other system components. Anytime perceived trust is used to elicit information from groups or individuals, it is referred to as "social engineering.

Software that aims to gather information about a person or organization without their knowledge, that may send such information to another entity without the consumer's consent, or that asserts control over a device without the consumer's knowledge.

Programs that systematically browse the internet and index data, including page content and links. These web crawlers help to validate HTML code and search engine queries to identify new web pages or dead links. A type of destructive malware that contains a disk wiping mechanism such as the ability to infect the master boot record with a payload that encrypts the internal file table. Wipers render the attacked process or component useless to the end user.

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Ransomware Ransomware is a type of malicious software that threatens to publish the victim's data or perpetually block access to it unless a ransom is paid. Viruses A computer virus is a type of malware that propagates by inserting a copy of itself into and becoming part of another program. Worms Computer worms are similar to viruses in that they replicate functional copies of themselves and can cause the same type of damage.

Trojans A Trojan is another type of malware named after the wooden horse that the Greeks used to infiltrate Troy. Bots "Bot" is derived from the word "robot" and is an automated process that interacts with other network services. Adware Software that generates revenue for its developer by automatically generating online advertisements in the user interface of the software or on a screen presented to the user during the installation process.

Backdoor An undocumented way of accessing a system, bypassing the normal authentication mechanisms. Browser Hijacker Software that modifies a web browser's settings without a user's permission to inject unwanted advertising into the user's browser. Crimeware A class of malware designed specifically to automate cybercrime.

Denial of Service DOS Attacks Malicious attempts by one or more people to cause the victim, site, or node to deny service to its customers. Executable File A computer file that contains a sequence of instructions to run an automatic task when the user clicks the file icon or when it is launched via a command. Exploit A piece of software, a command, or a methodology that attacks a particular security vulnerability.

However, they are a common component of malware. Instant Messaging Applications for personal or business communication that are built around the concept of online presence detection to determine when an entity can communicate.

Keyloggers The action of recording logging the keys struck on a keyboard, typically covertly, so that the person using the keyboard is unaware that their actions are being monitored. Malicious Crypto Miners Software that uses system resources to solve large mathematical calculations that result in some amount of cryptocurrency being awarded to the solvers.