How To Remove COOS STOP Ransomware (+ Decryption Methods)

Complete Solution To Restore Files from COOS STOP Ransomware

COOS STOP Ransomware is a highly dangerous file virus that is the new member of the Djvu ransomware family.  The main function of this virus is to encrypt System files and makes the completed inaccessible.  Cyber-criminal discovered this infection with the main intention to extort huge ransom for the decryption. It uses the sophisticated encryption algorithm to encrypt all stored files. It makes the files completely inaccessible for the users by the appending the “.coos” extension to its filenames. It creates the “_readme.txt”  note and drops in all folders.

 The Ransom note stated that all kind of personal and System files like as word, documents, audio, video and so on are encrypted by the strong encryption algorithm. The only way to recover or decrypt their files is to use a decryption Software and unique key that can be purchase only from Coos Ransomware developer.  The price of the decryption tool between $980 or $490 and it depends on how fast victim will write an email to [email protected] or [email protected] within or after 72 hours. Payment should be pay in the form of bitcoin. At the end of the ransom note they also warned, if victim will try to restore data from third party recovery software then their data will delete permanently.

Text presented in Coos ransomware’s text file (“_readme.txt”):

ATTENTION!

Don’t worry, you can return all your files!

All your files like pictures, 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:

hxxps://we.tl/t-NPRyOqtXtl

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:

[email protected]

Reserve e-mail address to contact us:

[email protected]

Your personal ID:

Is paying money get back files:

Paying ransom money to the hacker is not guaranteed that you will get  back file as earlier states. Cyber-criminal do not send the decryption key after paying the ransom money. It is common that cyber-criminal demands ransom money through Bitcoin or other crypto-currency such as Monero which is completely undetectable. You will not be able to find the recipient after paying the ransom. In most of the cases cyber-criminal blocks all the way of communication even just after received ransom money. In this way victim can lose their files and money both. It is also possible that decryption key is some kind of backdoor infection that can bring more threats on your System. So it is quite risky to pay money to hacker.

What Victim Should Do?

If you are already a victim of COOS STOP Ransomware then you know the paying money to the hacker is risky. There is no reason for hacker to decrypt your files once they get paid. If the Ransomware is still developments and if the malware has significant bugs/ flaws recovery files might be possible. If you want your files back then you have to remove COOS STOP Ransomware virus completely from PC from further encryption. After that you can easily recover your files by using back-up if you have or third party data recovery tool.

How COOS STOP Ransomware infiltrate into the System:

COOS STOP Ransomware  mostly infiltrate into the system through a spam email campaign, downloading unwanted program, fake software updates and other tricky ways. Spam email contains often send by the cyber-criminal which contain malicious attachments such as malicious MS office, documents, java script, PDF documents, exe archive, zip, RAR and so on. Such types of attachments file seems so legit and useful as well as comes from reputable organisations. Opening such types of file cause the infiltration of lots of infections.

Most of the users download and installed freeware program from third party webpage. They also skip custom or advance options as well as read the installation guide as well. Thus this behaviour causes the installation of lots of infections. Downloading and updating System Software from irrelevant sources like as host files and other fake downloader webpage could also bring ransomware.

How To Prevent the System from COOS STOP Ransomware:

 We are highly advice do not open any file which seems suspicious. If you don’t know the sender name please verify the sender name and address. Don’t try to attach any mail which comes from unknown sender. Users are highly advice please ignore the downloading and installing freeware program from third party webpage. Read the installation guide carefully till the end. Must select custom or advance options as well as other similar settings. Users are highly advice update the system from relevant sources. In order to keep the System safe and secure forever please scan the PC with reputable antimalware tool.

Threat Summary:

Name: COOS STOP Ransomware

Threat Type: Ransomware, Crypto Virus, Files locker

Encrypted File Extension: .coos

 Ransom Note: _readme.txt

Ransom Amount: $490/$980

Cyber Criminal Contact: [email protected], [email protected]

Symptoms: Cannot open files stored on your PC. A ransom demand message is displayed on your desktop screen. Cyber-criminal demand payment of a ransom to unlock files.

Distribution Methods: Spam email attachments, freeware download,  peer to pee sharing files

Damage: All files are encrypted and cannot be opened without paying ransom money.

Removal Process: To eliminate this Ransomware we are highly advice scan your PC with legitimate antimalware tool.

Antimalware Details And User Guide

Click Here For Windows

Click Here For Mac

Step 1: Remove COOS STOP Ransomware through “Safe Mode with Networking”

Step 2: Delete COOS STOP Ransomware using “System Restore”

Step 1: Remove COOS STOP Ransomware through “Safe Mode with Networking”

For Windows XP and Windows 7 users: Boot the PC in “Safe Mode”. Click on “Start” option and continuously press on F8 during the start process until the “Windows Advanced Option” menu appears on the screen. Choose “Safe Mode with Networking” from the list.

Now, a windows homescreen appears on the desktop and work-station is now working on “Safe mode with networking”.

For Windows 8 Users: Go to the “Start Screen”. In the search results select settings, type “Advanced”. In the “General PC Settings” option, choose “Advanced startup” option. Again, click on the “Restart Now” option. The work-station boots to “Advanced Startup Option Menu”. Press on “Troubleshoot” and then “Advanced options” button.  In the “Advanced Option Screen”, press on “Startup Settings”. Again, click on “Restart” button. The work-station will now restart in to the “Startup Setting” screen. Next is to press F5 to boot in Safe Mode in Networking.

For Windows 10 Users: Press on Windows logo and on the “Power” icon. In the newly opened menu, choose “Restart” while continuously holding “Shift” button on the keyboard. In the new open “Choose an option” window, click on “Troubleshoot” and then on the “Advanced Options”. Select “Startup Settings” and press on “Restart”. In the next window, click on “F5” button on the key-board.

Step 2: Delete COOS STOP Ransomware using “System Restore”

Log-in to the account infected with COOS STOP Ransomware. Open the browser and download a legitimate anti-malware tool. Do a full System scanning. Remove all the malicious detected entries.

In case if you cannot start the PC in “Safe Mode with Networking”, Try using “System Restore”

• During the “Startup”, continuously press on F8 key until the “Advanced Option” menu appears. From the list, choose “Safe Mode with Command Prompt” and then press “Enter”

• In the new opened command prompt, enter “cd restore” and then press “Enter”.

• Type: rstrui.exe and Press “ENTER”

• Click “Next” on the new windows

• Choose any of the “Restore Points” and click on “Next”. (This step will restore the work-station to its earlier time and date prior to COOS STOP Ransomware infiltration in the PC.

• In the newly opened windows, press on “Yes”.

Once your PC gets restored to its previous date and time, download the recommended anti-malware tool and perform a deep scanning in order to remove COOS STOP Ransomware files if they left in the work-station.

In order to restore the each (separate) file by this ransomware, use “Windows Previous Version” feature. This method is effective when “System Restore Function” is enabled in the work-station.

Important Note: Some variants of COOS STOP Ransomware delete the “Shadow Volume Copies” as well hence this feature may not work all the time and is applicable for selective computers only.

How to Restore Individual Encrypted File:

In order to restore a single file, right click on it and go to “Properties”. Select “Previous Version” tab. Select a “Restore Point” and click on “Restore” option.

In order to access the files encrypted by COOS STOP Ransomware, you can also try using “Shadow Explorer”. In order to get more information on this application, press here.

Important: Data Encryption Ransomware are highly dangerous and it is always better that you take precautions to avoid its attack on your work-station. It is advised to use a powerful anti-malware tool in order to get protection in real-time. With this help of “SpyHunter”, “group policy objects” are implanted in the registries in order to block harmful infections like COOS STOP Ransomware.

Also, In Windows 10, you get a very unique feature called “Fall Creators Update” that offer “Controlled Folder Access” feature in order to block any kind of encryption to the files. With the help of this feature, any files stored in the locations such as “Documents”, “Pictures”, “Music”, “Videos”, “Favorites” and “Desktop” folders are safe by default.

It is very important that you install this “Windows 10 Fall Creators Update” in your PC to protect your important files and data from ransomware encryption. The more information on how to get this update and add an additional protection form rnasomware attack has been discussed here.

How to Recover the Files Encrypted by COOS STOP Ransomware?

Till now, you would have understood that what had happed to your personal files that got encrypted and how you can remove the scripts and payloads associated with COOS STOP Ransomware in order to protect your personal files that has not been damaged or encrypted until now. In order to retrieve the locked files, the depth information related to “System Restore” and “Shadow Volume Copies” has already been discussed earlier. However, in case if you are still unable to access the encrypted files then you can try using a data recovery tool.

Use of Data Recovery Tool

This step is for all those victims who have already tries all the above mentioned process but didn’t find any solution. Also it is important that you are able to access the PC and can install any software. The data recovery tool works on the basis of System scanning and recovery algorithm. It searches the System partitions in order to locate the original files which were deleted, corrupted or damaged by the malware. Remember that you must not re-install the Windows OS otherwise the “previous” copies will get deleted permanently. You have to clean the work-station at first and remove COOS STOP Ransomware infection. Leave the locked files as it is and follow the steps mentioned below.

Step1: Download the software in the work-station by clicking on the “Download” button below.

Step2: Execute the installer by clicking on downloaded files.

Step3: A license agreement page appears on the screen. Click on “Accept” to agree with its terms and use. Follow the on-screen instruction as mentioned and click on “Finish” button.

Step4: Once the installation gets completed, the program gets executed automatically. In the newly opened interface, select the file types that you want to recover and click on “Next”.

Step5: You can select the “Drives” on which you want the software to run and execute the recovery process. Next is to click on the “Scan” button.

Step6: Based on drive you select for scanning, the restore process begins. The whole process may take time depending on the volume of the selected drive and number of files. Once the process gets completed, a data explorer appears on the screen with preview of that data that is to be recovered. Select the files that you want to restore.

Step7. Next is to locate the location where you want to saver the recovered files.