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Remove Coharos ransomware (Free Guide) - Decryption Methods Included

removal by Olivia Morelli - - | Type: Ransomware

Coharos ransomware is a typical variant of Djvu ransomware that uses gorentos@bitmessage.ch contact email address

Coharos ransomware

Coharos ransomware is the cryptovirus that finds common types of files and encrypts them with AES+RSA algorithm, so the ransom payment can be demanded. The amount in this DJVU ransomware family is also not changed for a while as the message and text file with the payment demand itself. Once the data on victims' machine gets encoded, _readme.txt file appears on the desktop and in other folders with encrypted data. This is the ransom note that informs people about the needed payment of $980 or a reduced amount of $490 if the person contacts criminals in less than 72 hours. 

Nevertheless, Coharos ransomware virus is not developed by generous people. Cybercriminals only care for your money and valuable files, the information they can obtain from your data or device. There is no need to trust these hackers, especially when most of the versions can be decrypted with STOP decryption tool.

Name Coharos ransomware
Type Cryptovirus
Ransom amount $980/$490
Encryption method AES and RSA[1]
Family STOP/Djvu
Contact emails gorentos@bitmessage.ch, gorentos2@firemail.cc
File marker .coharos
Ransom note _readme.txt
Distribution Spam email attachments, fake software, cracks, other malware
Elimination To remove Coharos ransomware virus damage get Reimage and scan the machine fully

Coharos ransomware is the threat that focuses on encryption process during which data gets encrypted and becomes useless. This threat can encrypt disk drives, databases, individual files like photos, documents, video and audio files. Cryptography is used in other instances and does bring the benefits of protecting your data. Unfortunately, these cybercriminals employ army-grade algorithms to have a reason for ransom demands.

Once Coharos ransomware gets on the system all the parts get scanned and checked for other malware or things that may interfere with either encryption or other malicious activities performed by this virus. Sometimes ransomware is made to avoid particular places, countries, so the location is also checked before any further actions.

After this, Coharos ransomware encrypts files and marks them with .coharos file marker. Once that is done, all the common files become useless. When the following message appears on the screen, the victim knows why:

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-Hy0BJyOtwx
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:
gorentos@bitmessage.ch

Reserve e-mail address to contact us:
gorentos2@firemail.cc

Your personal ID:

Although the message stated in the _readme.txt file states about possible decryption and Coharos ransomware developers claim to get your files back, there is no need to pay the ransom. By paying you may expose yourself to more dangerous material, lose your data permanently or get larger demands from these hackers.[2]

Coharos ransomware virus
Coharos ransomware is the virus that marks files with extension .coharos when their code gets changed using encryption algorithm.

Experts[3] always say that Coharos ransomware removal is the only solution when you get exposed to such content and get files affected by the cryptovirus. No people who create such threats have good intentions. You should remember that this particular version is one of 147 in Djvu family.

You need to remove Coharos ransomware and any other infections related to the questionable program and background activities. Your device starts to run significantly slower, and the general performance is diminished because malware runs in the background to ensure the persistence of the virus.

Coharos ransomware also changes particular parts of the system settings by adding new keys to the registry and ensuring that ransomware runs on the system once you reboot the machine. Due to this feature and the fact that some of the programs get disabled, you may need additional help with virus termination.

Install a reliable anti-malware program and run the full system scan. During this process, tools like Reimage can detect and indicate all the files, programs, and malware related to Coharos ransomware itself. This way, you can also eliminate virus damage and make your machine virus-free again.

Coharos cryptovirus
Coharos ransomware is the threat that spreads via malicious files, torrents and exploit kits, or even other malware.

The infection spreads immediately, and the encryption starts 

A payload dropper containing the malicious script od ransomware spreaders or the main virus get on the system from the internet, as many malware does. The most common technique involves spam emails and file attachments, links directly in the text of the email. 

When the email looks legitimate because it appears to be sent from a company or service, you use there is not much hesitation whether to open the received email. Unfortunately, opening the email and downloading the attached file is the biggest mistake. 

In most cases, the file is a document that asks to enable macros to see the content that possibly claims to have something to do with invoice, receipt or order confirmation. Once the macro virus gets triggered malicious payload launches on the machine and encryption starts. This is inevitable, except you delete received emails immediately after getting them and avoid opening any files or links that you are not sure about.

For the best Coharos ransomware elimination results get anti-malware tool

Since Coharos ransomware virus is the threat that gets on your system with the help of other malware or can install additional threats and programs on the system, you need to use automatic tools that can find all those files, programs and malware at once.

When you remove Coharos ransomware with the help of antivirus programs, all the detected intruders get to be terminated. If you opt for the manual malware elimination, you cannot find all of the associated files and delete them as quickly as the full system scan can.

Coharos ransomware removal should be even easier if you reboot the machine in Safe Mode with Networking and then run Reimage, SpyHunter 5Combo Cleaner, or Malwarebytes. This way, all the parts of the infected machine gets checked and cleaned thoroughly.

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What to do if failed?
If you failed to remove virus damage using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to remove virus damage. Free scanner allows you to check whether your PC is infected or not. If you need to remove malware, you have to purchase the licensed version of Reimage malware removal tool.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with SpyHunter 5.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Combo Cleaner.

To remove Coharos virus, follow these steps:

Remove Coharos using Safe Mode with Networking

Reboot the system in Safe Mode and remove Coharos ransomware using your AV tool

  • Step 1: Reboot your computer to Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Safe Mode with Networking from the list Select 'Safe Mode with Networking'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Networking in Startup Settings window. Select 'Enable Safe Mode with Networking'
  • Step 2: Remove Coharos

    Log in to your infected account and start the browser. Download Reimage or other legitimate anti-spyware program. Update it before a full system scan and remove malicious files that belong to your ransomware and complete Coharos removal.

If your ransomware is blocking Safe Mode with Networking, try further method.

Remove Coharos using System Restore

You should also benefit from System Restore feature, so try it as a solution for malware infection

  • Step 1: Reboot your computer to Safe Mode with Command Prompt

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Command Prompt from the list Select 'Safe Mode with Command Prompt'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Command Prompt in Startup Settings window. Select 'Enable Safe Mode with Command Prompt'
  • Step 2: Restore your system files and settings
    1. Once the Command Prompt window shows up, enter cd restore and click Enter. Enter 'cd restore' without quotes and press 'Enter'
    2. Now type rstrui.exe and press Enter again.. Enter 'rstrui.exe' without quotes and press 'Enter'
    3. When a new window shows up, click Next and select your restore point that is prior the infiltration of Coharos. After doing that, click Next. When 'System Restore' window shows up, select 'Next' Select your restore point and click 'Next'
    4. Now click Yes to start system restore. Click 'Yes' and start system restore
    Once you restore your system to a previous date, download and scan your computer with Reimage and make sure that Coharos removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove Coharos from your computer. To recover your encrypted files, we recommend using a detailed guide prepared by 2-spyware.com security experts.

If your files are encrypted by Coharos, you can use several methods to restore them:

You may need an alternative for the file restoring, Data Recovery Pro can help

Data Recovery Pro can restore files affected by Coharos ransomware or when you deleted needed data yourself

  • Download Data Recovery Pro;
  • Follow the steps of Data Recovery Setup and install the program on your computer;
  • Launch it and scan your computer for files encrypted by Coharos ransomware;
  • Restore them.

Windows Previous Versions feature helps with data encrypted by Coharos ransomware

When System Restore gets enabled, you can recover files one by one with Windows Previous Versions

  • Find an encrypted file you need to restore and right-click on it;
  • Select “Properties” and go to “Previous versions” tab;
  • Here, check each of available copies of the file in “Folder versions”. You should select the version you want to recover and click “Restore”.

ShadowExplorer for help

Coharos ransomware may leave Shadow Volume Copies untouched, if so, you can rely on this method for data recovery

  • Download Shadow Explorer (http://shadowexplorer.com/);
  • Follow a Shadow Explorer Setup Wizard and install this application on your computer;
  • Launch the program and go through the drop down menu on the top left corner to select the disk of your encrypted data. Check what folders are there;
  • Right-click on the folder you want to restore and select “Export”. You can also select where you want it to be stored.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from Coharos and other ransomwares, use a reputable anti-spyware, such as Reimage, SpyHunter 5Combo Cleaner or Malwarebytes

About the author

Olivia Morelli
Olivia Morelli - Ransomware analyst

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