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Remove Crowti virus (Free Guide) - updated Sep 2019

removal by Linas Kiguolis - - | Type: Ransomware

Crowti virus is the ransomware that locks the screen with a payment-demanding message 

Crowti ransomware virusCrowti virus is the crypto-malware that can be detected as Win32/Crotwi or Ransom:Win32/Crowti. Similar to other threats of this type like CashU, the malware demands a payment in Bitcoin that can go up to $500 or even more per victim. In most cases, victims cannot pay this amount, so their files remain affected and the system affected. Encryption virus[1] also is the term used to describe this category if internet threats because this is the algorithm that allows encoding various common files and demand money from people or even businesses, governments. It is possible that this virus is renewed and updated, so you may encounter other versions of the same type of threat.

It was first spotted back in 2014. Since then, ransomware has improved and made more dangerous than ever before. The particular threat has other names like CryptoDefenseCryptoWall or CryptoWall ransomware, Crowti ransomware. You can find your files renamed using random characters or replaced with PNG or HTML files like HELP_FILE_4BAACA128.PNG,  HELP_FILE_4BAACA128.HTML. These are indications that your machine is affected by this Cryptowall ransomware and you need to take immediate actions to fight it as soon as possible.

Name Crowti virus
Type Ransomware
Also know as Crowti ransomware, CryptoWall virus
Encryption method RSA-2048
Files added on the system
  • DECRYPT_INSTRUCTION.HTML
  • HELP_DECRYPT.HTML
  • HELP_DECRYPT.TXT
  • HELP_DECRYPT.URL
  • HELP_DECRYPT.PNG
ransom amount Goes up to $500
Detection names Win32/Crotwi or Ransom:Win32/Crowti, Win32/Crowti-b
Symptoms Demands ransom, affects files, freezes the machine
Distribution Fake installers, spam email attachments, malicious program cracks
Elimination Install anti-malware to remove Crowti virus from the machine. Try Reimage Reimage Cleaner for virus damage elimination

Crowti virus delivers a message on the screen int he form of either a lock screen or a separate file that is placed on various folders. The message states about possible ways of paying the demand or even scares the victim into downloading something. It reads the following:

WARNING – Your files are encrypted. To get the key to decrypt files you have to pay 500 USD/EUR. If payment is not made made before -specific date- the cost of decrypting files will increase 2 times and will be 1000 USD/EUR

Another CryptoWall/ Crowti ransomware message:

Cannot you find the files you need? Is the content of the files that you have watched not readable?
It is normal because the files' names, as well as the data in your files have been encrypted.
Congratulations!!! You have become a part of large community CryptoWall.
If you are reading this text that means that the software CryptoWall has removed from your computer…..
What is encryption?
Encryption is a reversible transformation of information in order to conceal it from unauthorized persons but providing at the same time access to it for authorized users. To become an authorized user and make the process truly reversible i.e. to be able to decrypt your files you need to have a special private key.
In addition to the private key you need the decryption software with which you can decrypt your files and return everything in its place.
I almost understood but what do I have to do?
The first thing you should do is to read the instructions to the end…..

When Crowti virus affects the machine, your files may be changed, renamed with ransom characters or marked with a different extension. In simple words, this virus affects your files and makes them useless, un-openable. This is the main indication besides the direct ransom-demanding message that shows up on the screen.

You need to remove Crowti virus, no matter how important your files are to you. It is possible to recover them later, but you need to eliminate malware as soon as possible, to avoid crucial damage to your computer. This threat has many more functionalities like altering system settings or disabling programs, functions. This is one of the oldest variants of ransomware that may have tons of versions.

Crowti ransomware can infect the machine, install programs, other malware, encrypt files and make them impossible to decrypt unless you pay for the tool. This virus also deletes Shadow Volume Copies, backups and databases or archives, so react to the infection as soon as possible until your computer is damaged permanently.

Crowti malware
Crowti virus is the virus that has Ransom:Win32/Crowti detection name.
Crowti virus is a seriously dangerous ransomware, which is very similar to other ransomware threats. As soon as it gets inside the PC system, it checks what is kept on it and blocks all files that have such extensions: 3fr, accdb, ai, arw, bay, cdr, cer, cr2, crt, crw, dbf, dcr, der, dng, doc, docm, docx, dwg, dxf, dxg, eps, erf, indd, jpe, jpg, kdc, mdb, mdf, mef, mrw, nef, nrw, odb, odm, odp, ods, odt, orf, p12, p7b, p7c, pdd, pef, pem, pfx, ppt, pptm, pptx, psd, pst, ptx, r3d, raf, raw, rtf, rw2, rwl, srf, srw, wb2, wpd, wps, xlk, xls, xlsb, xlsm, xlsx. You may ask 'why?'. The answer is very simple – this virus seeks to make its victims pay a predetermined ransom for unblocking locked files.

Unfortunately, there is no guarantee that making this Crowti ransomware payment will help you recover connection to your affected files.[2] That's why we highly recommend people, enterprise, and home users, to make sure that they have made alternate copies of their important files. They can use Cloud storage technologies, Dropbox, Flash Drive, or even CDs for that.

In addition, you should always keep your anti-spyware up-to-date in order to prevent infiltration of this virus. You can avoid this infiltration and keep yourself from performing Crowti virus removal in the first place if you keep the machine virus-free properly.

If Crowti virus has already started showing you a warning that is filled with specific instructions explaining how you can unlock your files (it usually requires making a payment of $100, $200 or even $500 in bitcoins), you should waste no time and scan your computer with updated anti-spyware. It will help you to remove this and other cyber threats from the system.

Crowti ransom-demanding virus
Crowti ransomware is a cryptovirus that demands Bitcoin payments with scary messages about the hacker access on the system.

Ransomware delivery methods

Just like any other ransomware threat, this virus is spread using several misleading techniques. You can easily fall into downloading this virus to your computer by clicking on fake pop-up notification offering you to update your Flash Player, Java, download manager or similar program.

In addition, spam campaigns have also been actively used when spreading this virus around. So, you should be very careful with every email that looks suspicious and actively asks you to download its attachment. According to our PC security experts[,[3] you should stay away from such and similar attachments: VOICEXXXX.scr, IncomingFaxXXXX.exe, info_XXXX.pdf.exe, etc. You need to delete any suspicious emails immediately after receiving them.

If you have already been tricked into downloading any of these attachments to your computer, you should waste no time and scan it with the reputable anti-spyware. It will help you to remove all malware and viruses, including the file-locking virus. If you have already received a warning asking you to pay for decrypting your blocked files, you shouldn't pay the ransom because you may be left with nothing. Instead of that, follow these steps and remove this threat.

Ways to remove Crowti virus from the machine completely

In order to prevent the appearance of Crowti virus, you should ignore all suspiciously-looking mails and ignore every ad that offers you to update your Flash, Java, and similar programs. In addition, make sure you scan your PC with a reputable anti-spyware if your PC is already affected by this ransomware. For that you can use Reimage Reimage Cleaner or SpyHunter 5Combo Cleaner, Malwarebytes. If you can't launch any of these programs and there is no luck, try:

  1. Rebooting you infected PC to Safe mode with networking to disable the virus
  2. Run Regedit
  3. Search for WinLogon Entries and write down all the files that are not explorer.exe or blank. Replace them with explorer.exe.
  4. Search the registry for these files you have written down and delete the registry keys referencing the files.
  5. Reboot and run a full system scan with updated anti-spyware.

We highly recommend thinking about the prevention of such infections, so you don't need to repeat anything similar to Crowti virus removal. If you need any help with the malware elimination, follow the steps below and look for possible ways to recover affected files.

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What to do if failed?
If you failed to remove virus damage using Reimage Reimage Cleaner, submit a question to our support team and provide as much details as possible.
Reimage Reimage Cleaner has a free limited scanner. Reimage Reimage Cleaner offers more through scan when you purchase its full version. When free scanner detects issues, you can fix them using free manual repairs or you can decide to purchase the full version in order to fix them automatically.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Reimage, try running SpyHunter 5.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Reimage Cleaner, try running Combo Cleaner.

To remove Crowti virus, follow these steps:

Remove Crowti using Safe Mode with Networking

Remove Crowti virus by rebooting the system in Safe Mode

  • 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 Crowti

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

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

Remove Crowti using System Restore

Restore the System to fight malware

  • 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 Crowti. 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 Reimage Cleaner and make sure that Crowti removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove Crowti 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 Crowti, you can use several methods to restore them:

Rely on file restoring software

Data Recovery Pro is the program that can help with lost or encrypted files

  • 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 Crowti ransomware;
  • Restore them.

Windows Previous Versions can recover Crowti virus encoded files

Try Windows Previous Versions if you enabled System Restore before

  • 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 – alternate solution for file backups

If Shadow Volume Copies are left alone, you can use ShadowExplorer for the 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.

There is no tool for Crowti virus

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

About the author

Linas Kiguolis
Linas Kiguolis - Expert in social media

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