The Different Types of Malware Explained

Are you trying to keep your computer safe from viruses? There are over 1140 million pieces of malware out there in 2021, so it’s important to stay alert.

Knowing what’s out there is the first step towards making sure you’re doing everything you can to protect yourself. Let’s go through the different types of malware so you can start today.

Trojan Horses

Trojans are one of the best-known types of malware, which doesn’t necessarily mean you’re protecting yourself properly from them. A trojan is a file that disguises itself as something you may want to download, like an app or an email attachment.

Then, cybercriminals will be able to access the data on your computer. They may even be able to install different types of malware on your computer, which can make the damage even worse.

However, trojan horse viruses cannot replicate by themselves. They would need to interact with another virus in order to duplicate itself. Trojan horses can open the door to your computer being infected with a bot virus, which can cause you even more problems for you. And, they can gain access to your wireless network, causing even more problems for any devices that may be connected to your wireless network.

If you already have malware infecting your computer, there are still steps you can take. Many companies can offer virus removal to help get your computer back to tiptop shape.


Adware is a type of malware that tracks your Internet history, and influences the types of advertisements you get when you surf the web. This can help make money for whoever originally developed the software.

Adware, like other types of software, often tries to disguise itself as a program you would actually want to install on your computer or download. 


One of the most malicious types of malware out there, ransomware stops you from being able to use your computer until a certain amount of money is paid, which is how it got its name.

Ransomware has grown even more common in recent years. It’s usually used to target professional settings, like government offices or police departments. Ransomware is one of the most lucrative forms of malware out there, so it’s especially important to watch out for it.

If you are worried about ransomware, there are some pretty easy steps you can take to protect yourself. And, make sure to back up your data as much as possible, especially if you think your computer might be infected with randomware.

It’s better to be safe than sorry, after all! Some examples of ransomware include Locky, WannaCry, Cryptolocker, Bad Rabbit, and Cryptowall.

Some programs may claim to be ransomware, but they’re not actually controlling your computer or holding your data for ransom. These viruses are called scareware, for reasons that should be obvious.


This type of malware hides itself on your computer, gathers data, and sends that data back to the software developer. Spyware can also infect your cell phone, so it’s really important to stay vigilant about protecting yourself from it. It can even interact with individual apps!

Spyware can get onto your computer by phishing, where a site will try and make you click on a link that will infect your computer, or spoofing, disguising itself in a website or email that appears to be familiar to you.

One type of spyware is a keylogger, which will record every time you type on your keyboard — which makes it easy for any hackers to figure out what your passwords might be!

Some examples of spyware programs include Internet Optimizer, Zwangi, Wintools, and 180SearchAssistant, among others.


Sounds gross, right? Well, malware worms are much worse than the real thing. A worm virus will spread itself by copying itself from different computers. Worms are particularly dangerous because they don’t need to be clicked on in order to reproduce, and it doesn’t have to hide itself in a different program.

Worms can change or delete files on your computer, causing even more damage than the average. Even the act of a worm virus copying itself can cause problems for you, since it will then take up more space on your computer and put pressure on your RAM.

Examples of worm viruses you may come into contact with include the Morris worm, the Storm worm, Jerusalem, Code Red, SQL Slammer, Melissa, and Michaelangelo.

These viruses can also install even more dangerous programs on your computer. That’s just a few of the reasons that worms are some of the most dangerous malware viruses out there on the Internet today.


Bot viruses are ones that allow a hacker to take over your computer and control it from a different location. Bots allow hackers to take over your webcam, steal screenshots from your computer, launch DDOS attacks, and spread malware attacks to different computers in your area.

Bots are truly one of the most horrific malware viruses out there, so you should do your best whenever possible to protect yourself from these attacks. 

Protect Yourself From These Types of Malware Today

Clearly, protecting yourself from different types of malware is just the start of making sure your computer is out of danger. There are so many more things you can do to keep your information private and your computer virus-free.

Are you looking for computer repairs or more information in the Tucson area? Make sure you contact us at Computer Revival today.