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What is Derp Virus? How does Derp Virus work? How to try and restore files, encrypted by Derp Virus ransomware? What is Derp Virus...

What is Derp Virus? How does Derp Virus work? How to try and restore files, encrypted by Derp Virus ransomware?

What is Derp Virus

Derp Virus is a particular type of malware which infects your personal files and encrypts them. Such malware is called Ransomware. There is no doubt that Ransomware is one of the most dreaded cyber threats to date. In this article, we’re going to look at a specific example of this class of malware better known as Derp Virus. If this cryptovirus has infiltrated your computer and you’ve noticed that your files have been encrypted by it, then read on, because the details here will help you better understand what malware you’re currently facing.


Once the Derp Virus has infected you it will start to encrypt your files.

We won’t lie – the Ransomware infection is a serious issue and cyber security professionals are working day and night to find working solutions to deal with it. Sadly, the cyber criminals who stand behind these threats are still a step ahead. Nevertheless, do not despair, as your system and files may have a chance of recovery. We have specifically developed a removal guide for cases such as yours, which can be used to safely remove the Derp Virus. We have also prepared instructions that may potentially help you restore some of the data affected.

Derp File Virus Ransomware – More Info

Ransomware is the general term for malicious programs that place encryption on files and components stored on a given computer. The fact that they generally go completely unnoticed while they perform their criminal mission is what makes these viruses particularly dangerous. Most of the time, they can infiltrate the system of the user without any indication. And even the strongest antivirus software may prove ineffective to detect the encryption process that is running in the background simply because the encryption is not a malicious or damaging process on its own. In reality, the encryption does not cause any corruption or harm to your files but acts as data-protecting measure. When applied by a Ransomware, such as Derp Virus, .Nols, .Coot however, the consequence is that the victims are locked out of their own information.
We can’t tell exactly how you’ve got infected with Derp Virus but we can mention some of the most common methods that hackers and cyber criminals tend to rely on to spread this malware. Spam emails are still as common as ever since most web users still click on random emails and open their attachments without a question.
False advertisements and malvertisements are also used for that purpose and are even more common. They basically look like any other online ad you might encounter (a popup, a banner, a random box message, etc.) with the only exception that you might install a Ransomware by clicking on them. Of course, these are not the only Ransomware transmitters, so our recommendation is to avoid any sketchy online content and use your common sense when browsing the web.

The Derp File Virus file Encryption – Explained

Many web users may consider paying the demanded ransom amount in the hopes of saving their files and dealing with the Ransomware fast. Sadly, in many cases, paying the ransom leads only to more issues because the criminals may simply flee with the money of the victim and may never be seen again. Obviously, the fooled users won’t receive a key for decryption, and their files will remain inaccessible.
If you don’t want to end up in a similar situation, our advice would be to use the removal guide below and see if it helps to remove Derp Virus and restore your files with alternative methods.


NameDerp Virus
Danger LevelHigh (Ransomware is by far the worst threat you can encounter)
SymptomsVery few and unnoticeable ones before the ransom notification comes up.
Distribution MethodFrom fake ads and fake system requests to spam emails and contagious web pages.


Remove Derp Virus Ransomware

1: Preparations

Note: Before you go any further, we advise you to bookmark this page or have it open on a separate device such as your smartphone or another PC. Some of the steps might require you to exit your browser on this PC.

2: Task Manager

Press Ctrl + Shift + Esc to enter the Task Manager. Go to the Tab labeled Processes (Details for Win 8/10). Carefully look through the list of processes that are currently active on you PC.

If any of them seems shady, consumes too much RAM/CPU or has some strange description or no description at all, right-click on it, select Open File Location and delete everything there.

Also, even if you do not delete the files, be sure to stop the process by right-clicking on it and selecting End Process.

3: IP related to Derp Virus

Go to c:\windows\system32\drivers\etc\hosts. Open the hosts file with notepad.

Find where it says Localhost and take a look below that. 

hosts_opt (1)

If you see any IP addresses there (below Localhost) send them to us here, in the comments since they might be coming from the Derp Virus.


4: Disable Startup programs

Re-open the Start Menu and type msconfig.

Click on the first search result. In the next window, go to the Startup tab. If you are on Win 10,  it will send you to the Startup part of the task manager instead, as in the picture:

If you see any sketchy/shady looking entries in the list with an unknown manufacturer or a manufacturer name that looks suspicious as there could be a link between them and Derp Virus , disable those programs and select OK.

5: Registry Editor

Press Windows key + R and in the resulting window type regedit.

Now, press Ctrl + F and type the name of the virus.

Delete everything that gets found. If you are not sure about whether to delete something, do not hesitate to ask us in the comments. Keep in mind that if you delete the wrong thing, you might cause all sorts of issues to your PC.

6: Deleting potentially malicious data – Derp Virus

Type each of the following locations in the Windows search box and hit enter to open the locations:






Delete everything you see in Temp linked to Derp Virus RansomwareAbout the other folders, sort their contents by date and delete only the most recent entries. As always, if you are not sure about something, write to us in the comment section.

7: Derp Virus Decryption

The previous steps were all aimed at removing the Derp Virus Ransomware from your PC. However, in order to regain access to your files, you will also need to decrypt them or restore them. For that, we have a separate article with detailed instructions on what you have to do in order to unlock your data. Here is a link to that guide.

Daniel Sadakov

Daniel Sadakov has a degree in Information Technology and specializes in web and mobile cyber security. He harbors a strong detestation for anything and everything malicious and has committed his resources and time to battling all manners of web and mobile threats. He has founded, a website dedicated to covering the top tech stories and providing useful tips for the everyday user, in an effort to reach and help more people.

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