Ransomware

Coos Virus Ransomware Removal Guide

If all your files got .Coos extension at the end and you are not able to access them, your computer is hit by Coos Ransomware infection. It is a STOP/Djvu Variant which has been spotted recently. It is circulating online through deceptive means and targeting innocent PC users. If you are also a victims of this virus then read this guide to remove it completely and recover your files.

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Threats like Coos keep getting back on PC, if all associated files are not removed. So you are advised to use a powerful Malware Removal Tool to run a thorough scan of your PC and delete all threats at once.

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What is Coos Virus

It is a STOP/Djvu Ransomware variant known as .Coos File Virus or .Coos extension virus. This notorious file encrypting virus is an excellent intruder and capable to hit any version of Windows computer without users’ permission. It is created with sole motive of blackmailing victims to pay ransom by encrypting their personal files.

In today’s digital world, everyone’s computer is a gold mine of information which may not have any value to others but it has great value to the owner. Hackers behind this .Coos Virus know this fact that’s why they target personal files and documents of the users to force them into paying hefty ransom money to get their precious data back.

.Coos File Virus is a file encrypting malware with very deep roots in online extortion business. It belongs to infamous STOP (DJVU) Ransomware family which has successfully launched more than 250 ransomware variants. In recent past, these file encrypting threats have terrorized millions of users around the world. It directly means that creators of this .Coos file virus are extremely smart and ruthless.

Working of .Coos File Virus

Hackers keep releasing new variants of their file encrypting malware after regular intervals to make illegal profit by cheating innocent victims. This nasty Coos Ransomware virus is able to infect all versions of Windows computer and encrypt all the important files stored on that PC. You will find that it adds .Coos extension to the end of all your files names, for an example the file “mypicture.jpg” will get changed to “mypicture.jpg.Coos” and you will not be able to access such altered files. Actually this extension is a marker that shows your files are locked and then you will find ransom note “_Readme.txt” on your computer left by hackers to demand ransom money.

Coos Virus Ransomware

If your system is infected by this nasty .Coos malware infection, then all your files, documents, videos, music, pictures everything would be locked. All your files will still be there on your computer as you have put them but you can access them. This nasty threat uses a very powerful encryption algorithm to lock down your files and it hard to break the encryption without perfect key. This deceptive Coos Ransomware Virus will leave ransom note on your computer to explain what happened to your files and how you can get them back.

Ransom demand is a trick

Creators of .Coos Virus simply ask users that there is no other way to recover your files other than buying the private decryption key generated for your computer. Keep one thing in mind that decryption key for every users is different and it is completely unique. Hackers have set an amount of $980 USD as primary ransom fees but they are willing to give you 50% discount. However victims need to pay the money within 72 hours of infection. They are baiting the victims to fall for this discount offer and pay $490 USD without seeking help from anyone else. It is simply a scam trick to manipulate users in paying money without looking for other options.

The ransom note “_Readme.txt” contains following text message:

ATTENTION!

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:
https://we.tl/t-gSEEREZ5tS
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:
helpmanager@mail.ch

Reserve e-mail address to contact us:
restoremanager@firemail.cc

Your personal ID:

How your Computer got infected

.Coos File Virus is a sneaky malware that could alter your system security through various different ways. Most of the times hackers use scam email techniques to drop this nasty malware directly into your Inbox with some legit name. When user opens such kind of emails, virus silently slip into the machine and get installed secretly.

Threats like this also normally spread through bundled freeware or shareware programs, cracked software, illegal patches etc. that users normally download from Internet for free and even stop their anti-virus protection to install those programs. If hackers embed their malicious codes in such types of files, then rest is very easy.

Apart from this, .Coos Virus Ransomware could also alter your system security when you browse malicious or porn websites, down torrent files, share files on unsafe network, click on misleading ads that redirect your browser on phishing websites. As you can see there are various different probabilities through your system can get infected any you won’t even know.

Coos Ransomware : Threat Analysis

NameCoos
TypeRansomware, File-Encrypting virus
FamilySTOP/DJVU Ransomware
Extension.Coos
Threat LevelHigh (Encrypt all your data and Restrict access to your files).
SymptomsVictims cannot access any files on their PC and find Ransom note asking for money.
DamageCoos Ransomware will  encrypt your data by adding .Coos extension to file names and demand ransom money for decryption key
Ransom Note_Readme.txt
Ransom Amount$490 USD to $980 USD
DistributionIt is mainly distributed through spam emails, bundled freeware, porn or torrent sites.
Removal Download SpyHunter 5 Anti-Malware
File Recovery Download Data Recovery Software Now

Do Not Pay RANSOM to Hackers

If you are thinking that you can pay the ransom money to .Coos virus and get your files back then it is a big mistake. It is clear that hackers want you money but they are maintaining their anonymity and demanding money through BitCoin which is a crypto currency. Once you pay the ransom, there is no way to track who got your money, who is the hacker or where are they. So you will be completely on mercy of hackers because they will have no reason to give you decrpytion key.

If somehow you will get the decryption key, what is the guarantee that hackers does not have secret agenda. That decryption key may bring more viruses, or steal your personal information or even completely remove all your files. So it is not a good idea to pay money to .Coos file virus instead you need to focus on removing this threat from your machine. If you have backup of your files then do not try to recover your files without removing this infection or it will encrypt your backup files as well.

You can also try third party data recovery software your files but still you have to first delete this infection. There is no way to recover your files until you remove this nasty .Coos file virus from your system. So you are advised to follow the given instructions carefully to get rid of this malware and restore your files without paying ransom money to hackers.

Automatic Coos Removal Guide

As you already know that, Coos Virus is a notorious and cunning malware which is not hard to remove easily by any user through manual means. This virus can keep coming back on the infected computer through files and shortcuts or settings that it has already created on your machine. Removing all those at once is the only way to get rid of this infection and stop it from getting on your system ever again.

So the best way to remove Coos effectively is to use a powerful Automatic Removal Tool and save your time and efforts. This software is a well trusted and very powerful anti-malware program which can detect all hidden threats like Trojan, Ransomware, Worms, Spyware, Rootkits and many others. It also provides 24X7 customer support and one-on-one Spyware HelpDesk support for Custom Malware removal. Advanced System Guard feature detects and remove threats in real time. It has a very User-Friendly Interface and regular Malware updates make it most effective against latest malware attacks.

How SpyHunter 5 Anti-Malware Works

  • First you need to click on below download button to get the software.

Geek’s Recommendation

Some time threats like Coos keep getting back on the machine, if all associated files are not removed. So you are advised to use a powerful Malware Removal Tool to run a thorough scan of your PC and delete all threats at once.

SpyHunter 5 Anti-Malware allows you, subject to a 48-hour waiting period, one remediation and removal for results found. Read SpyHunter 5 Review, EULA and Privacy Policy

  • Then double-click on installer you downloaded to install the program.

double clickAllow access

  • Launch Anti-Malware application and Start Scan Now of your PC.

Scan for Coos

  • Software will scan your PC all hidden threats and viruses on your system.

Scan for Coos

  • Click on Next button to see results and delete Coos and other threats.

Remove Coos

How To Recover Your Encrypted Files

Now all your files got encrypted by .Coos Virus then you need to recover your data without paying ransom money to hackers. If your files are important then you must have created backup and you can use that backup to recover your files. If you don’t have backup or this virus has encrypted your backup files, then you are left to seek the professional help.

We recommend you to use a powerful data recovery software to restore your files encrypted .Coos File Virus. It is risk free and smart way. You can just download the free version and scan your PC for files. There is a high probability that it can recover most of your files in a fraction of amount what hackers are demanding. It is also needless to say that paying hackers will only motivate hackers to carry out more attacks.

  • First you need to download Data Recovery software on your PC.

Download Data Recovery Software Now

  • Install the program, launch it then select Data type to recover and click Next button.

select Data type

  • Select the location from where you want to recover data and click Scan button.

Select location

  • After scan, software will list all files, select them and click Recover button.

Recover Coos encrypted files

Manual Coos Removal Guide

tip Before you start Manual Removal
Please Bookmark This Page by pressing {ctrl+D} button or print it out on a paper before you start the Manual Removal because you may need to restart your PC or browser.) Attention! For safety of your system, please confirm few things before you begin Manual Removal of Coos Ransomware:
  1. You have done this before, means you have experience for removing virus manually;
  2. That you know your way around PC and  all necessary process and applications;
  3. You know about Registry entry and Serious repercussions of any mistake;
  4. Make sure you can reverse any mistake made during .Coos Virus manual removal.

If you don’t attain any of  the above standards, then manual removal could be a very risky idea. It is most likely best for you to use Automatic Malware Removal Tool to find and delete Coos Virus, which is totally securely and efficient method.

SpyHunter 5 Anti-Malware allows you, subject to a 48-hour waiting period, one remediation and removal for results found. Read SpyHunter 5 Review, EULA and Privacy Policy

 

Start PC in safe mode with networking

  • Press Windows Key + R buttons together on keyboard.
  • Type msconfig in the Run Box then click OK button.
  • Click on Boot tab then System configuration window will appear.
  • Choose Safe Boot, check network box, Click Apply and press OK button.

Safe boot

Kill Malicious Process From Task Manager

  • Press Windows Key + R buttons together on keyboard.
  • Type taskmgr in Run Box and then click OK button.
  • Find Coos related or any malicious process.
  • Now right click on it then click End process.

Stop Coos related task

How To Uninstall Coos from Windows PC

  • First of all Press Windows Key + R buttons together.
  • Type appwiz.cpl in the Run Box and then click OK button.
  • Now Programs and Features windows will appear on screen.
  • Find and remove all Coos related or malicious programs.

Remove Coos

Warning : Do not play with Windows registry, host file of restore options if you don’t have previous experience with. Removing wrong files may break your system entirely. So if you are not sure, then stick to the Automatic Malware Removal option. SpyHunter 5 Anti-Malware allows you, subject to a 48-hour waiting period, one remediation and removal for results found. Read SpyHunter 5 Review, EULA and Privacy Policy

Remove Virus related Windows Registry entries

  • Press Windows Key + R buttons together on keyboard.
  • Type taskmgr in Run Box and then click OK button.
  • Registry Editor will open, then press CTRL +F buttons together.
  • Now type Coos and then click on Find Next button.
  • Find all the related entries and delete them one by one

Remove Coos related registry

Delete Virus related files form your PC

When a threat get on to a PC, it most likely create some files at different locations on the system. These files are used to perform specific action and also help malware in getting back to the computer once its removed. So you just need to find also delete all those files associated with this .Coos File Virus. For that follow the below instruction :

  • Press Windows Key + R buttons together on keyboard
  • Type each of the following in Run Box and press OK button
  1. %AppData%
  2. %LocalAppData%
  3. %ProgramData%
  4. %WinDir%
  5. %Temp%

For the first four option, look for any recent folder related to .Coos File Virus and remove them. For the Temp folder, you can delete all the files.

Remove Coos Virus via system restore

  • Press Windows Key + R buttons together on keyboard.
  • Type cmd in Run Box and then click OK button.
  • Type cd restore and press Enter, then type rstrui.exe and press Enter.
  • When System Restore window opens on your computer screen click Next button, then choose a System Restore point you have created in the past and click Next button.
  • Finally click on Yes button to start the system restoration process.

Remove Coos via system restore

Note : This will only work if you have restore point set on your PC or it will give error message. Restoring the computer to a previous version may or may not remove .Coos File Virus. Most of the times, virus just delete all the restore points. If this trick does not work for you then don’t get disappointed.

After restoring your computer, we recommend you to run a thorough scan of PC using a Powerful Anti-Malware program to detect and remove any hidden threats. In most cases, virus may spread through any files outside of C drive because system restoring only affect the C drive. There may be some Virus related file hiding your PC, and it never hurts to double-check.

Some times, system restore doesn’t work or virus can just remove the restore points. In such you will probably have no other choice than choosing the Automatic Removal Process. It is the best and error free method to find and remove threats from your computer. Additionally you should also check some important malware prevention tips provided here in this guide to avoid similar virus attacks in the future.

Remove Coos From MacOS

If you are a mac user, and your machine got infected by this nasty file encrypting malware then you need to remove it as soon as possible. Although Mac system are quite safe but they still do get infected. So you can delete this infection using below steps:

Stop Malicious Program From Activity Monitor

  • First you need to open Utilities folder on your Mac system.
  • Find the Activity Monitor icon and double-click on it to open.
  • Find Coos related process, click cross button from upper left side corner to end task.
  • A pop-up dialogue box will appear on screen, click on Force Quit button.

Remove Virus From Application Folder

  • First go to Dock option (bottom of your screen) then click on Finder App.
  • Now you have to open the Applications Folders to see all the programs.
  • Find Coos or any other unwanted program then move it to Trash.

Remove Coos From Mac

Attention : If you are not tech savvy, then it could be quite difficult to remove Coos manually from your mac. The best way is to download ComboCleaner Mac Anti-Malware and see if it can detect all hidden threats and viruses on your computer. Its really super easy and you should give it a try.

ComboCleaner Mac Antivirus allows you to scan your mac for threats and viruses for free, but you will need to purchase full license to remove found threats. Read EULA.

 

Tips To Prevent .Coos Virus in Future

  • Use a good anti-virus, be it a free version but don’t use cracked security programs.
  • Make sure that your Windows firewall is active, so it can block upcoming threats.
  • Keep your Windows/Mac OS and other programs updated to avoid vulnerabilities.
  • Download updates only from official websites, don’t use suspicious sites.
  • Never download and install pirated software, games or illegal patches on your PC.
  • Do not open spam mails from unknown sender and scan all attachments before opening.
  • Never download freeware third-party programs from unreliable sources or websites.
  • Avoid connecting your PC to unsafe public Wi-Fi to protect your privacy.
  • You can also use a VPN to spoof your connection and avoid malicious sites.
  • Create a system restore point on your system for security purpose.
  • Keep backup of all your important files to avoid data loss.

Report cyber attack to Authorities

If you are also a Victim of Coos virus then you should report this cyber crime incident to legal authority in your county. Here are the lit of some of the official government websites for reporting fraud and scam activities:

You can also search to find the Internet Crime Authority in your counter. Meanwhile it will not help you remove or restore your files in any way but its merely an information to authorities. Once you register your complain, authorities might look into and take preventive measures to stop further attacks. However don’t get lured by third party criminal reporting sites or fake technical support websites. They are more like to cheat you instead of helping you.

tip Still having issues? Need help?

Some time threats like Coos keep getting back on the machine, if all associated files are not removed. So you are advised to use a powerful Malware Removal Tool to run a thorough scan of your PC and delete all threats at once.

SpyHunter 5 Anti-Malware allows you, subject to a 48-hour waiting period, one remediation and removal for results found. Read SpyHunter 5 Review, EULA and Privacy Policy

About the author

Robert Calvert

Robert is the Chief Security Expert and Founder of PCSafetyGeek.com website. He is a cybersecurity enthusiast who loves to research about Malware outbreaks and write about their remedies. He also like to spend time trying new software, reviewing them and sharing IT news. However he is a real coffee lover and likes to play chess in spare time (which is quite rare 😜).

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