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9 Different Types of Malware You Should Be Aware Of

Malware is a nightmare for every PC user. When this name appears on your screen, there is nothing you can do but call computer repair service with a heavy heart and lots of thoughts crossing your mind about data losses. Malware can take many forms and is often hard to detect. If malware is detected on your device, it is important to understand how malware gets into systems and what types of malware exist so you can be better prepared in the future.

In this blog, we will cover different types of malware that are common today. We will also tell you how malware gets into systems and what types of malware exist.

What is Malware?

Malware is the generic term for malicious software. All types of malware have one thing in common: they’re designed to cause harm to a computer by disrupting its operations or by stealing information or data from it or both. Therefore, computer users need to be aware of types of malware and how they can prevent them from affecting their computers and personal information.

What are the Types of Malware?

Malicious software can damage your computer, steal your data, or spy on you. Spyware is software that collects personal information about you and shares it with the makers of the spyware. Trojans are programs that look like legitimate files but are malicious. Trojans can secretly access your computer and hijack your browser or email account.

Worms are small pieces of software that spread automatically from one computer to another, damaging or destroying data along the way. PUPs are programs that trick you into installing them on your computer without your knowledge or consent. A type of malware known as the rootkit is a type of malicious software that hides from detection by operating system security tools.

Here is the detail of some basic well-known malware that can affect your device.

1. Ransomware

Ransomware is a type of malware that encrypts files on the victim’s computer and demands a ransom to decrypt them. The malware can also disable security measures and Windows features so that the malicious code runs undetected. Once ransomware infects a computer, it acts maliciously by encrypting sensitive data stored on the system, such as email messages, photographs, or videos. As a result, users are forced to pay the attacker to access their files and information.

Ransomware is becoming increasingly common, targeting businesses, government agencies, and individuals. There is no cure for ransomware, so prevention is key to protecting data against this type of malware. It is essential to have up-to-date software and security updates installed on all devices and to regularly back up data to prevent data loss.

2. Fileless Malware

Fileless malware is a type of malware that does not require any files to be installed on the victim’s computer. This type of malware can exploit vulnerabilities in the Windows operating system and cause serious damage to a system without being detected by anti-malware software. To protect against fileless malware, users should be aware of the risks posed by this type of threat and take steps to reduce their chances of getting infected with malicious software.

3. Spyware

Spyware is a type of malware that is installed on a user’s computer without their consent. spyware can be installed on a user’s computer through malicious websites or email spam messages. spyware collects information such as browsing history, passwords, and contact lists. If spyware is not removed quickly, it has the potential to access sensitive information and pose a security threat to the affected device. Users need to install antivirus software and keep up-to-date with security patches to protect themselves from spyware and other malware.

4. Adware

Adware is a type of malware that displays unwanted advertisements on your computer. It can be installed through malicious websites or infected downloads. Adware can collect personal information, such as your browsing history and email address, and send it to the attackers. It is important to remove adware from your computer immediately if you find it on your device. This will help prevent malware from operating undetected and stealing sensitive information from your device. You can use software designed to detect and remove adware from your computer to help protect yourself against malicious software.

5. Trojan

Trojans are malicious software programs that can hide behind legitimate software to gain access to a computer system. They are small, executable files that are designed to disable or damage the victim’s computer. Trojans can be downloaded and installed without the user’s knowledge or consent.

They can also be spread through email and file sharing. As a result, trojan malware can quickly spread across the network and potentially lead to serious security breaches.

The key to preventing trojans from infecting a system is keeping up with software updates and using strong security software. By staying up-to-date with security updates regularly, you can help prevent trojan malware from infecting your system. Additionally, using strong security software can help protect your system against malware attacks of any type.

6. Worms

Worms are types of malware that can infect your computer through infected files. They can spread through removable storage media, such as USB drives and SD cards. These types of malware spread through email attachments or websites with malware-infected content. Once installed on a system, worms will start to reproduce and attack other systems on your network. This type of malware can cause significant damage to a network and must be eliminated immediately to prevent further damage.

Worms are hard to detect and remove since they can hide in plain sight on a network or system. Therefore, it is essential to regularly update software and use anti-malware software to ensure you stay protected from malicious software.

7. Bots/Botnets

Bots are automated programs that launch attacks against websites or computers. A botnet is a network of bots that are controlled by a single hacker. These malicious programs usually conduct cyber-attacks and data theft. They can also be used to launch distributed denial of service (DDoS) attacks, steal information, and more. To protect yourself from botnets and other types of malware, ensure regular updates of your computer security software and keep your browser up-to-date. This precaution will help ensure you stay protected against these types of threats.

8. Malvertising

Malvertising is a type of malware that distributes malicious advertisements. These ads can appear on websites and inside email messages. Malvertising malware distributors use this technique to target users who are likely to visit the sites or open email messages. 

9. Cryptojacking

Cryptojacking is another type of malware that uses computer resources to mine cryptocurrency. This process can consume significant computing resources, leaving less for other tasks.

Cryptojacking malware attacks through websites you visit as well as through installed applications on your computer. All types have the potential to harm your computer and personal data. However, staying informed about malicious software and common attack vectors will help you avoid becoming a victim.

How is Malware injected or deployed?

Malware can be injected into a web page as you browse it, or installed on your computer without your knowledge. Malware can also be deployed through malicious email messages, file attachments, and social media posts.


In malware, there are two types of threat actors: malicious software that is designed to access or alter information and systems and malicious software that is designed to access or alter information and systems. The threat of malware is increasing as more people rely on digital data for their day-to-day activities. As internet-connected devices gain popularity, malware creators are finding new ways of infiltrating user systems for malicious gain. To protect your system against malware, avoid visiting suspicious websites, be wary of email attachments that claim to contain software updates or security alerts, and update your operating system regularly.

If your PC or device is showing any unusual behavior, contact our IT Expert now and get the problem fixed virtually.