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Croc ransomware. How to remove? (Uninstall guide)

removal by Ugnius Kiguolis - - | Type: Ransomware

Croc ransomware is the cryptovirus that demands payment from victims if they want to get their files back

Croc ransomware
Croc ransomware virus is the threat that belongs to the Scarab virus family.
Croc ransomware – a virus that delivers ransom demand in HELP_BY_CROC.txt file placed on the desktop. This message contains brief details about the whole encryption process and suggests test decryption before the initial ransom payment. However, this ransom note appears only after the file-locking that is the primary purpose of such ransomware virus. This is a Scarab ransomware version that came out in the middle of April. As other variants in this family, Croc ransomware virus uses AES and RSA encryption algorithms and alters the original code of photos, documents, videos or database files to make them useless and locked. The then .croc file marker can get added to every one of those encrypted files and ransom demand appears in every folder or on the desktop.

In that text file, virus developers inform the victim about the encryption process and offer an opportunity to decrypt a few test files for them if the user contacts criminals via croc@airmail.cc, cr0c@mail.ee. This is not recommended because cybercriminals have only one purpose and goal – getting money from their victims.[1] There is little to no chance of getting your data back, especially when it comes to dangerous crypto malware like Croc file-encrypting virus. 

Name Croc ransomware
Type Cryptovirus
Family Scarab ransomware
File extension .croc
Ransom note HELP_BY_CROC.txt
Encryption method AES and RSA[2]
Distribution Spam email attachments, exploit kits, infected files with ransomware payload
Contact emails croc@airmail.cc, cr0c@mail.ee
Removal Get a reputable anti-malware tool for a proper Croc ransomware removal. Clean the possible virus damage with Reimage

Croc ransomware is the crypto-extortion based virus because that categorizes as ransomware because virus developers make users data useless and locked to demand a ransom in cryptocurrency. It starts the attack with encryption, and when the initial batch of data gets locked, the ransom note gets delivered on the screen.

Croc ransomware presents a text file – HELP_BY_CROC.txt that reads the following:

Hello, 
all your files have been encrypted. 
>>> Your personal ID: 
pAQAAAAAAAA *** 
you can use less than 10Mb. 
>>> Contacts: croc@airmail.cc cr0c@mail.ee If your mail server doesn't send e-mail to our contacts, we recommend you to create an e-mail on Protonmail.com (https: // protonmail. com). >>> ATTENTION!  * Do not rename encrypted files.  * Do you want to make a permanent data loss?  
 Decryption of your * files is with the help of a cause THIRD, Parties may Increased price   
   (the add for They Their fee to Our) or you CAN Become a victim of a scam a. 

You shouldn't trust people behind Croc ransomware and avoid contacting them n general as well as paying the ransom because they are not reliable and may affect your device or files even more instead of recovering them. Additionally, besides the encryption process and ransom demand, cryptovirus alters system files and functions on the infected machine.

These alterations include changed Windows registry entries, system files, deleted or disabled programs and functions. Croc ransomware tries to stay persistent on the computer, so various system security programs or features may get disabled and even deleted.

Because of that, you can benefit from System Restore or Safe Mode features of the Windows operating system during the Croc ransomware removal. Also, for this process, experts[3] recommend using professional anti-malware programs and scanning the device fully using them. 

During a full system scan tools like Reimage or any other antivirus program can check various places on the machine and detect various PUPs besides more severe malware. Then you can altogether remove Croc ransomware and fix virus damage, clean the computer entirely. 

Cryptocurrency is the preferred payment method of many ransomware developers. So Croc ransomware is not the exception. However, remember how dangerous and challenging paying the ransom may be.[4] You should get rid of this malware completely before trying to restore files because attempting any data recovery may lead to permanent data loss when the virus is not deleted fully.

When you need to restore files after Croc ransomware encryption rely on data backups stored on an external device or cloud service, since you save those files. However, when you need an alternative, you can try data recovery methods, and software suggested below the article.

A payload dropper that initiates the malicious script hides on spam email

Ransomware payload gets delivered with the help of spam email campaigns when the social engineering tactics and other deceptive techniques help deliver malicious files to users. Legitimate-looking emails pose as notifications from services, companies and other known sources.

Unfortunately when the email gets opened its only a matter of downloading and opening the attached file, and the system gets infected with ransomware itself or malware that is designed to spread cryptovirus further. Macro virus-filled documents or PDFs only need to be opened, and the malicious script releases on the PC.

Avoid opening these emails and downloading attachments from them. Delete all emails received without expectation, pay more attention to what services you use and companies you get products from. Be more suspicious to every sender and look out for red flags like grammar mistakes or typos.

Make sure to delete Croc ransomware and all programs running in the background or files added to the system folders

Croc ransomware virus makes boot option changes and alters registry keys to make sure the threat runs on the system all the time and affects various parts of the computer. These alterations also ensure that various recovery menus cannot be accessed, security functions cannot be launched.

All these additional setting alterations affect the initial Croc ransomware removal process because it keeps anti-malware programs from running correctly or even makes virus immune to security tools. For that reason, make sure to get reputable anti-malware like Reimage, Malwarebytes MalwarebytesCombo Cleaner, or Plumbytes Anti-MalwareMalwarebytes Malwarebytes and scan the machine thoroughly.

This way you can remove Croc ransomware and any additionally delivered malware or files, programs. Trojans, miners or redirects get detected and terminated as well as the ransomware itself.

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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 Malwarebytes.
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 Croc virus, follow these steps:

Remove Croc using Safe Mode with Networking

Rely on automatic Croc ransomware removal using anti-malware tools but reboot the machine in Safe Mode with Networking before the system scan to make sure it works properly

  • 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 Croc

    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 Croc removal.

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

Remove Croc using System Restore

You can benefit from System Restore feature while eliminating Croc ransomware

  • 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 Croc. 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 Croc removal is performed successfully.

Bonus: Recover your data

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

Data Recovery Pro gives the advantage of restoring your files when data backups cannot help

Accidentally deleted files, files encrypted by the ransomware all can be restored using Data Recovery Pro.

  • 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 Croc ransomware;
  • Restore them.

Windows Previous Versions feature for the help of file recovery

When data gets encrypted and locked, Windows Previous Versions can help if System Restore gets enabled

  • 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 is the method for data recovery after Croc ransomware attack

When Shadow Volume copies are not affected by the ransomware, ShadowExplorer can restore those files

  • 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.

Decryption is not possible

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from Croc and other ransomwares, use a reputable anti-spyware, such as Reimage, Malwarebytes MalwarebytesCombo Cleaner or Plumbytes Anti-MalwareMalwarebytes Malwarebytes

About the author

Ugnius Kiguolis
Ugnius Kiguolis - The mastermind

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