How to remove Derp ransomware and decrypt .derp files

Derp ransomware encryption process.

Nowadays ransomware viruses become more and more widespread as the ways of their disseminating change and become more and more devious. Derp ransomware belongs to the one of the well-known file-encryption ransomware family, called STOP(DJVU). This family includes such viruses as: COOT, Nols, Werd, Ndarod, Leto, Bora and RECO. All of them aim at the preventing the owner of the infected device from the accessing to the definite file formats and forcing the user to pay for the decryption services, that hackers provide. The most widely used ways of spreading the viruses are email attachments. Hackers modify harmless files in such a way, that the code of the virus, which is integrated into it, activates once the user opens it. At the same time you may become infected just by a simple redirection: the code executes by the means of backdoors and scripts, that the malicious site uses. If your device is already infected with Derp ransomware, don’t try to decrypt .derp files manually, as any manipulation potentially can corrupt your files permanently. If you want to restore them, you need to know how the encryption occurs at first.

If yor device is infected with Derp ransomware, the encryption process can be characterized as the two-step one. At first Derp ransomware scans all the folders on the infected device. It looks for media files and documents, as in the most cases these files are the most valuable information. Then it modifies the file structures and makes them unreadable by the all existing programs. The clear sign of the successful encryption is the new extension .derp. As it’s been already mentioned, the main function of this virus to make the user pay for the decryption services, that’s why Derp ransomware also creates the ransom note, that is called _readme.txt and contains the following information:


Don’t worry, you can return all your files!
All your files like photos, databases, documents and other important are encrypted with strongest encryption and unique key.
The only method of recovering files is to purchase decrypt tool and unique key for you.
This software will decrypt all your encrypted files.
What guarantees you have?
You can send one of your encrypted file from your PC and we decrypt it for free.
But we can decrypt only 1 file for free. File must not contain valuable information.
You can get and look video overview decrypt tool:
Price of private key and decrypt software is $980.
Discount 50% available if you contact us first 72 hours, that’s price for you is $490.
Please note that you’ll never restore your data without payment.
Check your e-mail “Spam” or “Junk” folder if you don’t get answer more than 6 hours.
To get this software you need write on our e-mail:
Reserve e-mail address to contact us:

The promises, that hackers give you cannot be trusted. They try to assure you, that there is no any way out, but to pay them, but remember the fact, that they’ve already conned your once and they can do it again. It’s nothing for them just to ignore you after your payment, or they can even send you a more malicious software instead of a decryptor. If you want to remove Derp ransomware and decrypt .derp files, you’d better use our guide for free!

Article’s Guide

  1. How to remove Derp Ransomware from your computer
  2. How to remove Derp Ransomware encryption from your files
  3. Data Recovery
  4. Automated decryption tools
  5. Windows Previous Versions

How to remove Derp Ransomware from your computer?

We strongly recommend you to use a powerful anti-malware program that has this threat in its database. It will mitigate the risks of the wrong installation, and will remove Derp from your computer with all of its leftovers and register files.

Solution for Windows users: our choice is Norton 360 . Norton 360 scans your computer and detects various threats like Derp, then removes it with all of the related malicious files, folders and registry keys.

Download Norton windows compatible

If you are Mac user, we advise you to use Combo Cleaner.

How to decrypt .derp files?

Once you’ve removed the virus, you are probably thinking how to decrypt .derp files. Let’s take a look at possible ways of decrypting your data.

Recover data with Data Recovery

Data Recovery

  1. Download and install Data Recovery
  2. Select drives and folders with your files, then click Scan.
  3. Choose all the files in a folder, then press on Restore button.
  4. Manage export location.

Download Stellar Data Recovery

The download is an evaluation version for recovering files. To unlock all features and tools, purchase is required ($49.99-299). By clicking the button you agree to EULA and Privacy Policy. Downloading will start automatically.

Restore data with automated decryption tools

Unfortunately, due to the novelty of Derp ransomware, there are no available automatic decryptors for this encryptor yet. Still, there is no need to invest in the malicious scheme by paying a ransom. You are able to recover files manually.
You can try to use one of these methods in order to restore your encrypted data manually.

Decrypt .derp files with Windows Previous Versions

This feature is working on Windows Vista (not Home version), Windows 7 and later versions. Windows keeps copies of files and folders which you can use to restore data on your computer. In order to restore data from Windows Backup, take the following steps:

  1. Open My Computer and search for the folders you want to restore;
  2. Right-click on the folder and choose Restore previous versions option;
  3. The option will show you the list of all the previous copies of the folder;
  4. Select restore date and the option you need: Open, Copy and Restore.

Decrypt .derp files with System Restore

You can always try to use System Restore in order to roll back your system to its condition before infection infiltration. All the Windows versions include this option.

  1. Type restore in the Search tool;
  2. Click on the result;
  3. Choose restore point before the infection infiltration;
  4. Follow the on-screen instructions.

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