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Malicious Software: 11 Common Types of Malware Infection

by Melanie Peterson
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What is malicious software?

Malicious software, or malware, is any type of harmful code that is injected into a computer without the user’s knowledge or permission. Once installed, malware can be used to steal personal information, hijack devices for ransom, or even destroy data. In some cases, malware can be used to gain access to sensitive systems and networks.

Malicious Software - 11 Common Types of Malware Infection

Types of malicious software:

There are many different types of malware, each with its own specific purpose and method of infection. Some of the most common types of malware include viruses, worms, Trojan horses, and spyware.

Viruses:

Viruses are one of the oldest and most well-known types of malware. A virus is a piece of code that replicates itself by attaching itself to other programs or files on a system. Once a virus has infected a computer, it can spread quickly to other systems connected to it. Worms are similar to viruses in that they replicate themselves and can spread quickly through networks; however, unlike viruses, worms do not need to attach themselves to anything in order to spread.

Spyware:

Spyware is a type of malware that is designed to collect information about a user without their knowledge or permission. Spyware can track a user’s online activity, steal personal information, and even record keystrokes. Spyware is often bundled with other types of malicious software, such as viruses and worms. Spyware is software that secretly collects information about users without their knowledge or consent; it may track everything from what websites they visit (and when) to what keys they press on their keyboard (and how often). Spyware can be used for marketing purposes (i.e., targeted advertising)or more nefarious activities such as industrial espionage or identity theft.

Trojan horses:

They get their name from the ancient Greek story in which soldiers hid inside a wooden horse in order to gain access to their enemy’s city walls. Like the Trojan horse in the story, malicious Trojans disguise themselves as harmless programs or files in order to trick users into downloading and executing them on their systems. Once activated on a system, Trojans can be used for all sorts of nefarious purposes such as stealing personal information or taking control of devices remotely.

Root kits:

Rootkits are a type of malicious software that is designed to conceal the presence of other malware on a system. Rootkits can be used to hide viruses, worms, and Trojans from detection by antivirus programs. In some cases, rootkits can also be used to gain privileged access to systems and take control of them remotely.

Botnets:

A botnet is a network of infected computers that are under the control of a remote attacker. Botnets can be used for all sorts of nefarious purposes such as launching denial-of-service attacks or sending spam emails. The computers in a botnet are usually infected with malware that allows the attacker to take control of them remotely.

Cryptojackers:

Cryptojacking is a type of cyberattack in which attackers use malicious code to hijack devices and force them to mine cryptocurrencies without the user’s knowledge or permission. Cryptocurrencies are digital assets that use cryptography to secure their transactions and protect their creators from fraud. Cryptocurrency mining is the process by which new units of cryptocurrency are created; it requires specialised hardware and consumes large amounts of energy. When devices are hijacked for cryptocurrency mining, they often become sluggish and unresponsive due to the high CPU usage required for mining. In some cases, cryptojacking can even cause physical damage to devices due to overheating.

Worms:

Worms are a type of malware that is designed to spread itself from one computer to another. Worms can replicate themselves and propagate across networks without the need for user interaction. Once a worm has infected a computer, it can use that system to infect other computers on the same network. Worms can be used for all sorts of nefarious purposes, such as stealing personal information or taking control of devices remotely. In some cases, worms can also be used to launch denial-of-service attacks or send spam emails.

Ransomware:

Ransomware is another type of malware that can be used to take control of a device or system. Unlike worms, ransomware requires some form of user interaction in order to spread. Once installed, ransomware will encrypt files and demand a ransom be paid in order to decrypt them. In some cases, ransomware can also prevent users from accessing certain websites or using certain applications. Ransomware is often used by cybercriminals to extort money from victims.

Bots:

Bots are another type of malware that can be used to take control of a device or system. Bots are programs that run autonomously and can be used for all sorts of purposes, both good and bad. For example, bots can be used to automatically post comments on websites or social media platforms. They can also be used to send spam emails or propagate malware. In some cases, bots can even be used to launch denial-of-service attacks.

Adware:

Adware is a type of malware that displays unwanted advertisements on infected devices. Adware can be used to generate revenue for its creators by displaying intrusive ads or redirecting users to malicious websites. In some cases, adware can install other types of malware on an infected device, such as spyware or ransomware.

Key loggers:

Key loggers are a type of malware that record every keystroke made on an infected device. This information can be used to steal passwords, credit card numbers, and other sensitive data. In some cases, key loggers can also be used to remotely control an infected device.

How does malware infect a computer?

Malware is short for malicious software and is used to infect a computer by disrupting its normal functioning. Malware can be installed on a computer in many ways, including through email attachments, websites, and instant messages. Once installed, malware can allow attackers to control a victim’s computer remotely, stealing sensitive information or using the victim’s machine to spread malware to other computers.

Malicious software can be spread in many different ways, including email attachments, downloads from untrustworthy websites, and infected removable media such as USB drives. In some cases, attackers may use social engineering techniques to trick users into infecting themselves with malware. Once installed on a system, malware can be difficult to remove; however, there are many tools and resources available that can help victims clean their systems and thwart future attacks.

Malware removal services:

We understand how important it is for your business to keep its data safe and secure. That’s why we offer malware infection removal services to help you rid your system of any harmful software. We will scan your system for any malicious software and remove it safely, so you can rest assured that your data is protected.

Don’t let a malware infection ruin your business. Contact ExterNetworks today and let us help you get rid of any harmful malicious software on your system. We will work quickly and efficiently to clean up your system, so you can get back to business as usual.

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