Last Updated on March 5, 2022 by Tech Queries Team
You might have heard about several types of Malware like Viruses, Trojan, Ransomware, Spyware, etc. But, are you aware of the most dangerous malware called Rootkit? Today we will talk in detail about
- What is a Rootkit?
- Why is it the most dangerous type of Virus?
- Types of Rootkit
- How to detect and remove Rootkit?
- Rootkit Prevention Methods
Table of Contents
What is a Rootkit? Rootkit Definition:
The term Rootkit is originated from the concept Root Access. A Rootkit is a computer program designed to take access to a device’s system files without user approval. In simple words, Rootkit is a software developed by cybercriminals to access other’s computers.
Rootkits disguise themselves as legitimate software. But, as soon as they enter your PC, they take access to system files and allow other malware to bypass the security.
Why Rootkits are the most dangerous type of Virus?
The thing that makes Rootkits the most dangerous type of Virus is that it is hard to detect. Could be impossible in some cases. While some Rootkits inject themselves into the installed programs, the most dangerous forms of Rootkits run as part of your Operating System.
As drivers have access to install data into the system files, Rootkits disguise themselves as Drivers and get access to your Operating System. When the Rootkits integrate itself into the Kernel system, even an Anti-Virus cannot detect or remove it.
Moreover, the Rootkits can even infect the boot sector and enter the firmware BIOS. In such cases, you cannot remove the Rootkit even by completely formatting the hard disk. Hackers can also use Rootkits to make your computer a part of Botnet.
Also, Read What is Botnet?
Types of Rootkits:
Rootkits are classified by the level of infection they cause.
- Application Level Rootkits
- Visualization Rootkits
- Kernel Level Rootkits
- Hardware/Firmware Rootkits
Application Level Rootkits only infects the installed application, whereas the Kernel Level Rootkits can infect your Operating System. There are also the most dangerous kinds of Rootkits that enter the firmware BIOS and damage your hardware.
How to detect and remove Rootkit from your PC?
Some latest motherboards have a feature called Secure Boot, which prevents Rootkits. But, it also limits the user’s legitimate activities, like installing another Operating System. Some simpler Rootkits can be detected and removed by using premium Anti-Virus software. However, it is difficult to detect some types of Rootkits and almost impossible to remove them from your computer. It is better that you follow the Prevention Methods rather than looking for cure.
Rootkit Prevention Methods:
- You must have Total Security Anti-Virus Software that can prevent Rootkits from entering your computer in the first place.
- Download drivers and essential software from the official website.
- Do not download files or pirated software from unknown sources.
- Do not download attachments or click on suspicious links on the Email.
- Don’t connect unknown USB drives to your PC.
Frequently Asked Questions:
What to do if your BIOS is infected with Rootkit?
Rootkits are considered the most dangerous type of malware because they are hard to detect and remove. Hence, you must buy a new PC and do not use any parts from the old PC, as they might contain Rootkits.
How to detect if your computer has Rootkits?
Premium Anti-Virus can detect and block simpler kinds of Rootkits. But, you can identify if your computer is infected by Rootkits by observing the performance.
Are Rootkits still a threat?
Rootkit attacks are increasing day by day. And they are still the biggest threat to your PC.
Are Rootkits Malware?
Yes. Rootkits are one of the most dangerous types of Malware.
Can Rootkits be Removed?
It depends on the level of Rootkit. Application Level Rootkits can be detected and removed by premium Anti-Virus software. But, it is almost impossible to remove Rootkits from the firmware.
Can a Rootkit Infect the BIOS?
Yes. Firmware Rootkits can infect your BOIS as well.
How Rootkit Works?
Rootkits disguise themselves as legit software. And, when you download them from unknown websites, they enter your PC and take access to the system files without user permission. They might even allow other Malware to enter the PC.
Check out the difference between Malware Vs Virus.
Conclusion:
Now that we have explained What is a Rootkit and how dangerous it is, you must take preventive methods. The best way to prevent Rootkits from infecting your PC is to avoid browsing and downloading from untrusted websites. However, you can also install premium Anti-Virus software to detect and stop Rootkit from entering your PC.
You can also protect others from Rootkit by sharing this article with your friends and family.
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