How to Remove Xor DDos Trojan from Linux?

Learn how to remove Xor DDos Trojan from Linux quickly and effectively with our step-by-step guide. Protect your system now!

Updated: 07 Oct, 24 by Elizabet J 6 Min

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Are you dealing with malware on Linux? We understand that it can be hard, especially when you have to face something as nasty as the Linux XOR DDoS Trojan! This bug seems small, but it can take over your server and use the computer’s resources to attack other computers. As a result, you’ll experience slow operations on your system, network issues, and even hacker attacks! But don’t worry because we’re going to tell you how to remove Xor DDos examples from Linux. After that, all the caused problems will be solved. This guide is easy and even beginners can do it.

So, before you learn how to remove Linux XOR DDoS malware you should know what is it and why you need to remove it. Actually, Xor DDoS trojan hack is a type of malware that is harmful to your system. Why? Because it can attack other Linux computers. It uses vulnerabilities in Linux computers to launch massive distributed denial-of-service (DDoS) assaults. You know that traditional malware targets the operating system. On the other hand, XOR.DDoS converts Windows PCs into "zombie" machines. Then, they will be managed by a Command & Control (C&C) server to launch attacks. 

Now that you know what it is, you may ask “Why should I remove it?” actually, there are many dangers that show why you should remove Xor DDoS malware to secure Linux VPS, including: 

  • Network overload: Xor DDoS trojan hack uses lots of useless data to flood networks. As a result, networks will be slower and crashes happen for them. 
  • Resource drain: Sucks up system resources like bandwidth, memory, and CPU. So, your network and devices will be weak.
  • DDoS attacks: Infected gadgets become zombie armies capable of attacking other websites. 
  • Hard to block: For smaller networks and basic security, a method is used that is more difficult to detect.
  • Business disruption: This may lead to problems and downtime, resulting in financial loss and a negative reputation.
  • Security breach: This creates vulnerabilities that could expose sensitive information or allow other malicious applications to infiltrate which is dangerous for Linux VPS.

Result: Generally, Linux Xor DDos malware is a kind of malware that is especially tricky. Xor DDoS trojan hack uses a different kind of attack and if you don’t remove it soon, it will be harder to stop it. 

Before doing anything, you need to make sure that the Trojan exists on your system.
To do this, first see the CPU status and processes through the TOP tool. If there is a process with a strange name, such as hgmijazsert, running on your server with root access, there is a high chance that this is malware infecting your server and using resources. (Note down all the information of this Trojan, including the PID, name, etc., as you will need it later). Generally, when Linux server is infected with malware, CPU load will be high and its resources will always be almost completely used up. Once you have made sure that the Trojan is on your server, you have to follow the steps below to delete it.

Remove Trojan XORDDoS

The first step is to STOP this process, which is done by using the PID observed in TOP.

kill -STOP [pid-number] Copy

Instead of the pid-number clause, enter the pid number of the process, as in the following command

kill -STOP 22598 Copy

Note: Do not kill this process completely, as it will start with another name.

The next step is to go to the path of this Trojan, which is commonly found in usr / lib /and find it.

cd / usr / lib Copy

After visiting this address, enter the name of the file you see in the "nano" command to see its contents.

nano file-name Copy

Here, you should pay attention to the type of code and its method of writing (there is no need to analyze or learn it, just remember the way its written and the type of commands). Now, check all the files in this section and each one which has similar style of code as the trojan should be deleted with the following command.

rm-f 'file-name' Copy

Please Note: Instead of file-name, enter the name of the files you find and be careful not to delete other files accidentally.

Find and remove the original Trojan file

After removing all the files from this directory, you must now find and remove the original Trojan file, commonly called libudev.so (this is not always the case). This file is generally located in the lib / directory, however if it is nor, enter the following command to find it.

Find / -type f -name libudev.so Copy

After finding this file, remove it with the rm-f command that was mentioned in the previous steps. Then, because this file is located in the system's Cron, you must change its full access using the following the command:

/ chmod 0000 /lib/libudev.so&& rm -rf /lib/libudev.so && chattr + i / lib Copy

Check each directory

Now go to etc / directory and check each directory (rc0.d, rc1.d, etc.) and check all the newly created Crons.

Tip: Use the ls-lrt command to find the latest files created and display their creation date.

Now you should examine and delete any file with strange names that were created recently.

This way, you will completely get rid of the Trojan. There is a common trend of this Trojan being deployed through Brute Force attacks, so if this trojan was present of on your server, there is a high chance that one or many of your passwords is compromised. We strongly suggest you to change the passwords for the root system, as well as all the users who have Sudo access. Please make sure that the new passwords are long, complex and contain combinations of letters, numbers and special characters.

You have to get rid of it! because if you don’t important issues can happen. For example, you’ll experience slowed-down servers, vulnerable servers to other attacks, and even legal troubles. Just like you clean up your house when it’s dirty, you should remove Linux Xor DDos malware from your Linux system to protect it from dangers and keep it safe. After removing, try to update your software regularly, and use strong security measures to prevent such dangers. 

Elizabet J

Elizabet J

One OF my major goals is getting new experiences about ICT and what’s more making progress through this field.

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Brendan

2021, Oct, 21

The above information really helped me out this afternoon, thanks. I noticed when tidying the rc files, some folders proved elusive. It wasn't until I ran the following command in the /etc folder that I discovered an rc.d folder that was hiding similar nasties. sudo find . -printf '%T@ %t %p\n' | sort -k 1 -n | cut -d' ' -f2-

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efueyo

2022, Feb, 22

Dear all. Rkhunter has identified the Linux.DDoS trojan for me. My knowledge is insufficient to be able to safely follow all the steps indicated in this excellent article. Therefore, I would be grateful if you could clarify the following questions. a).- My OS is Linuxmint 20.2. If I update to LM20.3, using the Update Manager, will that Trojan disappear? In case it can't be removed that way, if I format the drive and install from a USb, would it go away? I will appreciate your help.

user monovm

Winnifred Connelly

2024, Jun, 24

Great guide on removing the XORDDoS Trojan from a Linux server! It's super helpful to have such detailed steps laid out, especially the initial identification process using TOP and the caution about not killing the process outright. The emphasis on examining recent files and changing compromised passwords is also crucial advice. Thanks for sharing this comprehensive removal method!

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Prof. Frederik Friesen

2024, Dec, 24

Thanks for sharing this comprehensive guide on tackling the XOR DDoS Trojan! Linux users often think they're immune to such threats, so it's great to see an easy-to-follow removal process outlined here. Not only does this post highlight the Trojan's impact, but it also empowers even beginners to secure their systems effectively. Prevention tips like updating software and using strong passwords are especially useful. Cheers for making server security accessible to everyone!

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Raul Torp

2025, Jan, 25

This post is incredibly helpful for tackling malware on Linux, especially something as complex as the Xor DDoS Trojan. The step-by-step guide makes it accessible even for beginners, and the emphasis on understanding what this malware does is crucial. Regular updates and strong security measures are key takeaways here. Thanks for putting together such a comprehensive and easy-to-follow guide—it's a must-read for anyone looking to secure their Linux systems!