Coot Virus (.coot File Ransomware) - How to Remove + Restore Data

Coot Virus (.coot File Ransomware) – How to Remove + Restore Data

This is a Coot virus removal guide. The article is made to help you understand what is Coot Virus, what are Coot files and how you can remove this ransomware from your computer. Shortly said, you will learn how to remove Coot virus from your PC.

Coot Virus is the name of a ransomware infection that has recently started to hit computers. At the time of writing this, there are numerous registered infections around the world. The malware aims to get into your computer system, encrypt your files and then set the .coot file extension to appear at the end of their names. The files can no longer be opened and this is the main reason why victims are extorted to pay a ransom fee to open them again. The amount of this ransom is around $1000 USD and hackers require it to be paid anonymously via BitCoin.

Read this article to learn how to remove Coot virus and how to try and get your files to work again.

Threat Summary

NameCoot virus
TypeRansomware, Cryptovirus
Short DescriptionCoot Virus is a cryptovirus, that locks your files to extort you to pay ransom to get them to work once again.
SymptomsFiles are encrypted with an added .coot file extension. A ransom note, called _readme.txt is dropped.
Distribution MethodSpam Emails, Email Attachments, Executable files
Detection Tool See If Your System Has Been Affected by Coot virus


Malware Removal Tool

User ExperienceJoin Our Forum to Discuss Coot virus.
Data Recovery ToolWindows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

Coot Virus – Update October 2019

The latest information about Coot virus ransomware indicates that the malware uses pirated software to infect computers. What happens is that victims could be downloading the following files which could lead to an infection:

  • Cracks.
  • Patches.
  • Torrents.
  • Keygens.
  • Software activators.
  • Pirated games or movies.

As of recent, the researcher Michael Gillespie (@demonslay335) has tweeted that the Coot virus is officially a variant v0175 from the STOP Ransomware virus family. The researcher has tweeted about the virus using the .coot extension and the _readme.txt note:

The tweet has sparked a lot of discussions with victims asking for solution. The sad news apparently are that this variant of STOP Ransomware may have online encryption keys. For those who are unfamiliar with this problem, STOP Ransomware variants use two types of keys for encrypting files via the AES 256 (Advanced Encryption Algorithm) cipher:

  • Offline keys.
  • Online keys.

The offline keys are easier to crack by researchers and the decryptors for the malware get updated to be able to decrypt specifically those offline keys. However, in the case of Coot ransomware and other viruses, most variants have online keys, that are significantly harder to decrypt, due to the fact that they cannot be detected and factorized as easy. We will keep track of the .coot virus situation and will have new updates and instructions in case this virus is effectively decrypted.

Coot Virus – How Did I Get It and What Does It Do?

Typical to other variants of STOP Ransomware, just like in the case of Coot Virus, the methods of infection do not differ much. These methods aim to trick you to trigger the Coot download process. The primary method being used for infection is spam e-mails that carry e-mail attachments. The attachments are in fact the virus infection file. These attachments carry around malicious macros and exploit kits that are programmed to bypass any relevant Windows and antivirus protection. Such files can pretend to be the following important documents in your inbox:

  • Invoices.
  • Receipts.
  • Order confirmations.
  • Letters from your bank.
  • Some important hospital data.
  • Ticket or hotel reservations.

Either way, when you download and run the virus, infection with Coot virus is inevitable. The virus begins to assume administrator rights and may perform the following activities on your computer:

  • Create mutexes.
  • Modify or create entries in the Windows registry entries.
  • Drop the ransom note _readme.txt and the virus files in the %AppData% or other system directories.
  • Check if its running on a real machine and if not, shuts down.

When the Coot Virus has done all its preparation processes, it is ready to start encrypting target files. It does this by scanning for your personal files, based on their type. These file types can turn out to be:

→ .JPG, .PNG, .BMP, .GIF, .PPTX, .DOC, .DOCX, .DOCM, .RAR, .ZIP, .7Z, .VM, .ISO, .AVI, .MP4, .3GP, .TIFF and other often used files.

The encryption process is very fast and your PC may slow down during these few seconds time. You will quickly notice that your files become no longer usable and get stripped out of their icons. Files, encrypted by Coot Virus begin to assume the following appearance:

For example, the file Document.txt will has the following name and look Document.txt.coot

.coot file remove restore sensorstechforum

The virus drops its _readme.txt ransom note, which contains the ransom demands of the cyber-crooks behind it:


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:

Our Telegram account:

Your personal ID:

The main idea of the Coot virus is for you to pay and this is exactly why you shouldn’t and instead focus on removing this nasty malware from your computer.

Remove Coot Virus and Try to Restore Files

In order for you to get rid of Coot Virus from your PC, we strongly recommend that you follow the removal instructions underneath. They have been created with the primary idea to help you delete this ransomware step by step. For a full and effective removal, we recommend that you take advantage of the power of an advanced malware removal software. Such a tool is created to help you delete Coot Virus from your computer automatically by detecting and removing all of its virus files and objects in a matter of minutes time.

For the .coot file recovery, we strongly recommend that you back up the files and wait for a decryptor to become available for this particular variant of STOP Ransomware. When this decryptor is available, we will post an update here with instructions on how to decode your files. In the meantime, we strongly recommend that you try the alternative data recovery steps underneath. While they are not 100% effective in file recovery, they can help you restore at least some of the data.

Coot Virus Video Removal


Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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