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Mirai virus. How to remove? (Uninstall guide)

removal by Julie Splinters - - | Type: Malware
12

Hackers launch massive Mirai cyber campaign

Mirai virus[1] got into the spotlight again after disrupting the Internet connection for German telecommunication company users[2]. The malware has been well-known for IT specialists for its peculiarity to connect several computers into one menacing network of infected machines – botnet. While the virus occasionally appeared here and there, daily Internet users might not have worried about its threatening presence. However, the recent launch of massive attack is a warning sign for the entire virtual community. If you notice strange behavior on the device, do not waste time and install a security application, such as Reimage. It will help you remove Mirai virus.

The very malware is supposedly originated from Japan as the title means “future” in Japanese[3]. What is more, is an author is expected to be a user under the pseudonym “Anna-senpai”[4]. The very name originated from Japanese anime culture. Though daggers are pointed to Japanese hackers, these attacks are most likely the wrongdoings of foreign cyber criminals. However, international racketeers have joined this ominous business as the latter version of Mirai (Linux.Gafgyt.B) might have come from Brazil. Brazilian hackers have been the primary suspects for launching banking trojans. The original version of Mirai malware targets mainly IoT technologies and Linux systems. By exploiting vulnerable IoT devices, the virus turns them into a virus-distributing botnet. Mirai network has been used for delivering massive DDoS (distributed-denial-of-services) attacks as well. 

After updating its source code, hackers employed the malware for disabling the Internet connection for about million users of Deutsche Telecom customers. Specialists suspect that the cyber criminals did not plan to shut down the connection but merely steal vital information from the affected devices. However, as the server was overloaded with malware signals, the campaign did not work out as expected. Luckily, only 5% of all clientele might have suffered from the cyber attack. Zyxel routers happen to be one of the most vulnerable devices[5]. Though virus researchers expect the malware to slow down in the following days, signs of related DDoS attacks have been traced to Africa. What is more, the origin of September attacks on Japan’s defense and SDF (Self Defense Forces) and Korea’s military cyber systems are questioned as well. Such Internet disrupting cyber assaults were not the only ones recently. Last month, several US telecommunications companies experienced a similar attack.

How does the malware spread and is there a way to escape it?

Since the malware exploits the vulnerabilities in the specific devices, manual tracking Mirai botnet might be a futile task. If you are about to purchase IoT device, look up its manual and identify its manufactured company. After obtaining the device, change the default password into a long code containing marks, characters, and numbers. You might also set an elaborate encryption technique to your Wi-FI or wired Internet network. Modifying security settings is a useful prevention method as well. Turn off Telnet login and employ SSH. Check your IoT manufacturer for latest updates.

Terminating Mirai malware

Though Mirai virus mainly attacks IoT devices, it is destructive to think that Windows OS or Mac OS owners users are safe from this cyber misfortune. Since the developers got determined to surprise the world with unseen hijack techniques, arming with reliable protection is of primary importance. In the case of mentioned operating systems, you can remove Mirai by using Reimage or Malwarebytes Anti Malware. Keep in mind that the utilities have to be updated for them to work properly. In order to terminate Mirai hijack, disconnect from the internet and enter Safe Mode with networking. Further instructions will explain in detail how to do that. They will also come in handy if you cannot complete Mirai removal.

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What to do if failed?
If you failed to remove infection using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to uninstall Mirai virus. Free scanner allows you to check whether your PC is infected or not. If you need to remove malware, you have to purchase the licensed version of Reimage malware removal tool.

More information about this program can be found in Reimage review.

More information about this program can be found in Reimage review.
Alternate Software
Plumbytes Anti-Malware
We have tested Plumbytes Anti-Malware's efficiency in removing Mirai virus (2016-11-30)
Malwarebytes Anti Malware
We have tested Malwarebytes Anti Malware's efficiency in removing Mirai virus (2016-11-30)
Hitman Pro
We have tested Hitman Pro's efficiency in removing Mirai virus (2016-11-30)
Webroot SecureAnywhere AntiVirus
We have tested Webroot SecureAnywhere AntiVirus's efficiency in removing Mirai virus (2016-11-30)

Manual Mirai virus Removal Guide:

Remove Mirai using Safe Mode with Networking

Reimage is a tool to detect malware.
You need to purchase Full version to remove infections.
More information about Reimage.

If you suspect that Mirai worm or similar threat has invaded your device, you might enter Safe Mode and scan your system with an anti-spyware tool.

  • Step 1: Reboot your computer to Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Safe Mode with Networking from the list Select 'Safe Mode with Networking'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Networking in Startup Settings window. Select 'Enable Safe Mode with Networking'
  • Step 2: Remove Mirai

    Log in to your infected account and start the browser. Download Reimage or other legitimate anti-spyware program. Update it before a full system scan and remove malicious files that belong to your ransomware and complete Mirai removal.

If your ransomware is blocking Safe Mode with Networking, try further method.

Remove Mirai using System Restore

Reimage is a tool to detect malware.
You need to purchase Full version to remove infections.
More information about Reimage.

  • Step 1: Reboot your computer to Safe Mode with Command Prompt

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Command Prompt from the list Select 'Safe Mode with Command Prompt'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Command Prompt in Startup Settings window. Select 'Enable Safe Mode with Command Prompt'
  • Step 2: Restore your system files and settings
    1. Once the Command Prompt window shows up, enter cd restore and click Enter. Enter 'cd restore' without quotes and press 'Enter'
    2. Now type rstrui.exe and press Enter again.. Enter 'rstrui.exe' without quotes and press 'Enter'
    3. When a new window shows up, click Next and select your restore point that is prior the infiltration of Mirai. After doing that, click Next. When 'System Restore' window shows up, select 'Next' Select your restore point and click 'Next'
    4. Now click Yes to start system restore. Click 'Yes' and start system restore
    Once you restore your system to a previous date, download and scan your computer with Reimage and make sure that Mirai removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove Mirai from your computer. To recover your encrypted files, we recommend using a detailed guide prepared by 2-spyware.com security experts.

If your files are encrypted by Mirai, you can use several methods to restore them:

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from Mirai and other ransomwares, use a reputable anti-spyware, such as Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware

Julie Splinters
Julie Splinters - Malware removal specialist

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References

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  • jerryU

    So much ruckus..

  • Robin5555

    I wonder how dangerous they are in reality..

  • brittainss

    I was at my friends house at that time..we couldnt access the Web for one hour!