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Rijndael ransomware virus. How to remove? (Uninstall guide)

removal by Lucia Danes - - | Type: Ransomware
12

Ransomware newcomer Rijndael virus uses well-established techniques to execute attacks on victims

Rijndael virus (a.k.a. DN Ransomware) is a new crypto-ransomware [1] that the computer users should be aware of. The malware is named after the encryption algorithm that it employs to encrypt victims’ data and demand for a hefty ransom later. This particular cipher was created by Belgian cryptologists in 1998 and, a few years later, was acknowledged as the Advanced Encryption Standard [2]. Undoubtedly, the well-established technology and virtually impossible decryption have become the primary reasons why hackers tend to choose AES scripts as their preferred way of encrypting victims’ data. It is interesting that the hackers behind Rijndael virus introduce this encryption as a novelty while, in reality, it has been around for nearly 20 years. While there is no denying that this encryption code is really an unbreakable one, extortionist goal is to increase the scare factor to the maximum and coax the victims into paying for their files. These strategies eventually boiled down to the ransom note you can see below:

Your Computer files is encrypted
all files is encrypted with extremely
powerfull new RIJNDAEL encryption

that no one can break except you have
a private string and IVs

To Decrypt Your File, You Should Pay Me
0.5 BTC (864.98 USD)
Contact Me:
Riptours01(@)gmail.com

insert your code here:
[Decrypt!] – button

The worst part is that the cyber criminals, who call themselves Deathnote Hackers, are telling the truth, and the only way to truly get back the access to the files encrypted by Rijndael is by using a private code purchased from the hackers. Unfortunately, paying hackers the 0.5 BTC they demand does not guarantee anything. The crooks will surely take the money, but they will not necessarily hand the decryption key to you [3]. At the end of the day, you will most likely lose both, your files and your money. The ransomware attack will result in less damage if you remove Rijndael before even attempting to communicate with the victims. Just remember to use proper tools for the virus elimination and don’t even try eliminating the virus yourself! Employ Reimage, Malwarebytes Anti Malware or similar software to banish this malware from your computer and expert recommendations to recover at least some of your data.

Apart from the threatening ransom note, there are other ways you can tell the device has been infected with this undesirable cyber infection. The most obvious are, of course, the audacious “.fucked” extensions that the virus appends to every encrypted file, document, media file or archive. These extensions will remain installed even if the virus is eliminated from the computer which may be rather annoying. Another factor that gives the ransomware away is the Rijndael.exe process running in the Task Manager. Even if the virus blocks you from accessing this tool, you should be aware this process will most likely be running in the background of the system anyway and be able to create, read and modify system settings. You can never know what the virus creators will come up with next, that’s why Rijndael removal should not be put on hold for long. Besides, the faster you eliminate the malicious script from your computer, the more files you are likely to save.

Main channels of ransomware distribution

Rijndael virus is currently distributed rather sluggishly and we should be happy about that. Nevertheless, the application of spam, phishing campaigns [4], drive-by downloads, exploits, Trojans [5] and bunch of other techniques for the virus distribution can surely expand the scope of the virus prevalence online. There are numerous channels for the virus to get through and system vulnerabilities such as outdated software or unsupported operating system that does not receive security updates can increase the chances of infiltration quite significantly. If you care about your files and your computer’s wellbeing, please make sure you regularly update and keep backup copies of important files somewhere safe.

How to dispose of Rijndael recover your files?

Before anything, you should concentrate and carefully remove Rijndael virus from the hijacked system. Antivirus scanners will help detect and eliminate the malware to its last malicious file, so you could get started with system recovery without the risk of encountering some leftover ransomware files. When you are sure Rijndael removal has been successful, you may then proceed to the recovery procedures. Remember that you may have to try out several techniques to achieve the best results, but don’t expect too much. These recovery methods can be found below the article. 

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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 Rijndael ransomware 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.

Manual Rijndael virus Removal Guide:

Remove Rijndael 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.

Rijndael may block your antivirus from running system cleanup. If this happens, follow these instructions:

  • 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 Rijndael

    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 Rijndael removal.

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

Remove Rijndael using System Restore

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

You may help your computer by ensuring the Rijndael removal goes smoothly. All you have to do is complete these steps:

  • 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 Rijndael. 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 Rijndael removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove Rijndael 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 Rijndael, you can use several methods to restore them:

Can Data Recovery Pro come in handy when recovering files encrypted by Rijndael?

Without a doubt, Data Recovery Pro is one of the initial solutions we can recommend to the Rijndael victims. The tool is easy to use, so the users less experienced in the IT field can use it without hesitation.

Recover Rijndael using Windows Previous Versions feature

Windows Previous Versions feature is a convenient tool because your do not need to install it on your computer to be able to use it. Nevertheless, there is one condition: System Recovery function should be enabled before the virus infiltration. Here is how to use Windows Previous Versions:

  • Find an encrypted file you need to restore and right-click on it;
  • Select “Properties” and go to “Previous versions” tab;
  • Here, check each of available copies of the file in “Folder versions”. You should select the version you want to recover and click “Restore”.

Rijndael recovery using ShadowExplorer

ShadowExplorer is not a 100% remedy for the infected computer, nevertheless, if the virus does not destroy Volume Shadow Copies, this tool has a good chance of recovering your files.

  • Download Shadow Explorer (http://shadowexplorer.com/);
  • Follow a Shadow Explorer Setup Wizard and install this application on your computer;
  • Launch the program and go through the drop down menu on the top left corner to select the disk of your encrypted data. Check what folders are there;
  • Right-click on the folder you want to restore and select “Export”. You can also select where you want it to be stored.

Rijndael decrypter

Unfortunately, experts investigating Rijndael have not come up with a tool that could decrypt the system for free. Don’t lose hope, though, and check back with us later. 

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

About the author

Lucia Danes
Lucia Danes - Virus researcher

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References