Malware is any malicious software deliberately created to wreak havoc on a computer, service, server, or network. There are a wide variety of malicious software types available, including adware, worms, Trojan horses, malware-zipping programs, ransomware, spyware, and fake antivirus programs. Malware can also be unintentionally created by software as part of a security or update program, or by malicious Internet users. Regardless, of whether the software was developed specifically to create malware, or not the presence of malware in a network creates a major security threat and requires dedicated IT support professionals to identify, remove, and prevent further damage.
One of the most common forms of malware is a Trojan horse.
A Trojan horse (or more formally known as a Trojan virus) is a self-contained computer program that unexpectedly starts up when Windows is running. The Trojan horse can be programmed to perform a variety of functions, including stealing passwords, monitoring Internet traffic, and generating spam or pop-ups. Because many people are not familiar with how malware works, it can be difficult for IT professionals to detect Trojan horses because they often look and act like legitimate applications.
Another form of malware is the virus.
Unlike typical malware, a virus infiltrates a computer without the knowledge or permission of the user. The virus may install damaging files, create problems, or perform operations without user consent. Unlike malware, a virus has the ability to spread through multiple computers and networks without the use of any tools or techniques. Unlike malware, a virus usually does not corrupt files on a computer or interfere with network operations. However, a virus can cause serious problems by blocking access to a system or damaging critical data.
In addition to malware, there are a number of different types of viruses that can infect a computer. Some of the most common include: Trojan Horses, Worms, RATs, Spam, Advertising Viruses, Data Entry Viruses, Security Suite Viruses, Conficker Virus, and Antivirus Program Viruses. Each type of malware has different characteristics, features, and deployment options.
Trojans are computer worms that can attach themselves to other programs and share data. When downloading from the internet, a Trojan can install itself in the computer without the user’s permission. A worm collects information from the internet and sends it to an author of the worm, who uses the data to make copies. Computer worms are one of the most common forms of malware.
A data-entry virus is a virus that enters devices via emails or other sources and performs a variety of tasks. It may record screenshots, save passwords, report confidential information, and perform other tasks. Many of the different types of malware that can infect different types of devices are categorized under spyware and adware as well.
Spyware is computer worms that can track internet surfing habits, collect contact information, personal information, and can even change browser settings. It can be difficult for users to tell if their computers have been infected with spyware or not. Adware is a very similar malware that runs on many operating systems. They can pop up on the screen when the user loads up a specific application. Most of the time, ads will show up on the screen, but sometimes, they can be more malicious.
These are just some of the most common types of malware that can be distributed through the internet. In addition, there are many malicious programs that can be hidden inside of other programs.
- When they infect a system, the malware can steal personal data and use it for illegal purposes.
- This can include running criminal searches, spamming forums, phishing, and distributing harmful software.
- By taking precautions against these different types of malware, a user can help protect their data and ensure their privacy online.