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Crypted virus. How to remove? (Uninstall guide)

removal by Olivia Morelli - - | Type: Ransomware

Crypted ransomware might be back into the wild

 Crypted ransomware commands to pay up

Crypted is a ransomware-type cyber infection that emerged in spring 2016 appending .crypted file extension to various files on the targeted computer. However, in November 2017, computer users reported about data being locked with .crypted_uridzu@aaathats3as_com extension. Malware researchers assume that criminals created a new, undecryptable version of the malware. Though, this crypto-virus is still under investigation.

Crypted virus is also known as Nemucod ransomware[1]. However, the file extension that it originally appends is also used by PyCL ransomware virus. When audio, video, music, images, documents, and other necessary files are encrypted, malware drops a ransom note.

Ransom-demanding instructions are delivered in two files – Decrypt.txt or Decrypt.hta. They state that that victim’s files were encrypted and that one needs to buy a private decryption key[2], which can be used for data decryption.

 

Questions about Crypted virus

Just like any other ransomware, Crypted Trojan commands to use The Onion Router, also known as TOR software and make the payment in Bitcoins.[3] However, if you are a victim of this ransomware, we recommend you to think about Crypted removal instead of paying the ransom because:

  • First of all, you can never know if cyber criminals will actually provide the decryption key, or if they just want to steal your money;
  • Second, think if you want to support cyber criminals in such way. The more ransoms they gather, the more motivation they get, therefore, it encourages them to continue their fraudulent activities;
  • Finally, in this case, you can recover your files without paying the ransom!

.crypted files can be restored for free

Nevertheless, the majority of ransomware viruses are undefeatable, and there is no way to restore files unless authors of the malware reveal decryption tool. However, in case of .Crypted ransomware attack, malware researchers have good news. There's a free decryption tool[4] that can restore files with .crypted extension. You can find full data recovery instructions in the guide presented below virus' removal instructions.

To remove Crypted virus, we recommend using Reimage or another trustworthy malware removal tool. It is not recommended to play with this ransomware and attempt to remove it manually unless you know what you're doing. If you lack knowledge about computer viruses, please do not try to uninstall this virus manually.

IMPORTANT NOTE. Please remember that .crypted file extension virus differs from .encrypted file extension virus. The latter extension is used by many different ransomware viruses such as CryptoLocker, Keranger and Crypren

Ransomware mostly spreads via malicious spam emails

Crypted malware usually spreads via infectious emails: the cyber criminals send fake emails that contain attachments. It is vital to check if you know the sender of email before you open it or its attachments. Usually, frauds pretend to be delivering relevant documents, for example, invoices, price charts, bills, resumes and so on.

Be careful when dealing with such emails. In addition, stay away from Spam/Junk folders as many fraudulent emails do not pass these email security filters and fall into these categories. 

You should be attentive when browsing the Internet as cyber criminals tend to spread malicious files and programs by concealing malicious links in some websites. Try to avoid visiting suspicious websites, and refrain from clicking on intrusive pop-up ads or banners.

Also, avoid downloading files from insecure file sharing networks. You might install Trojan horse on your computer without even knowing it; reportedly, a trojan named JS.Nemucod spreads this ransomware, as well as other well-known viruses, such as Locky, Teslacrypt, KeRanger, and others.

Nemucod Trojan mostly proliferates via email in a form of malicious JavaScript file. Of course, this JS file is crafted to look safe, so inattentive users can open it without realizing how dangerous it actually is. For this reason, some security researchers[5] identify Crypted as Nemucod ransomware.

Crypted ransomware removal and date recovery

Crypted removal is a hard process. The ransomware is a complicated and well-constructed virus, which hides its components deeply in the computer system. Moreover, components of such viruses use safe-sounding names, which makes it harder to identify them.

For this reason, we recommend you to install a professional malware removal tool and terminate all programs and processes related to it. We recommend using Reimage or another top-rated malware removal software. In case you wish to remove Crypted virus but your anti-malware software won't start, follow these instructions that will help you to prepare your computer for malware 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 Crypted 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.
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Manual Crypted virus Removal Guide:

Remove Crypted using Safe Mode with Networking

First things first, remove the virus using instructions on how to reboot your PC into Safe Mode with Networking. Once you reboot the computer into the right mode, let an automatic malware removal software do its job.

  • 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 Crypted

    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 Crypted removal.

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

Remove Crypted using System Restore

  • 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 Crypted. 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 Crypted removal is performed successfully.

Bonus: Recover your data

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

If your files have been encrypted by the discussed virus, do not even think about making the payment. Malware researchers have already discovered a method how to crack this ransomware and developed Crypted decryption software. You can find instructions how to use it below.

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

Try Data Recovery Pro software

In case the suggested decrypter doesn't help you to recover your files, you can give Data Recovery Pro a try. This data recovery software is known to be effective when dealing with corrupted or deleted files.

Use .crypted decryption software to set your files free

To recover your files, download this program – Crypter decryptor, and then find two files – the original one and encrypted version of it. You can use any file you want, and the easiest way is to use sample photos that are stored in My Pictures folder.

Once you have the two files, select both of them and drag them to the icon of the decryptor you have just downloaded and release. The decrypter then brute-forces the key, which is required for data decryption. 

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

About the author

Olivia Morelli
Olivia Morelli - Ransomware analyst

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References

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