A nasty virus, called CryPy, reported to use the Python language for it’s script has been detected by malware researchers, using AES-256 cipher to encode files. The encryptes files by this virus have the .cry file extension and in addition to that, the ransomware also changes the file names with random numbers, beginning with the CRY initials. After it’s encryption process is complete, CryPy malware drops a ransom note, called README_FOR_DECRYPT.txt. In this note, the virus also notifies that it will randomly delete a file every 6 hours if a ransom payoff to the cyber-criminals has not been made to restore the files. Anyone whose computer has been attacked by this devastating ransomware virus should not pay any ransom money and immediately remove the CryPy virus using the instructions in this article to avoid further file deletion. Furthermore, instead of paying the ransom, you can counter attack it and try to restore your files using alternative methods such as the ones suggested below.

Follow this article for more information to be updated soon.

Threat Summary

Name	CryPy
Type	Ransomware
Short Description	The malware encrypts users files using a strong encryption algorithm, making direct decryption possible only via a unique decryption key for each file available to the cyber-criminals.
Symptoms	CryPy Ransomware leaves a “README_FOR_DECRYPT.txt” ransom note and may delete random files from your computer if the terms in the note are not met. Changed file names and the various file extensions may be used.
Distribution Method	Via an Exploit kit, Dll file attack, malicious JavaScript or a drive-by download of the malware itself in an obfuscated manner.
Detection Tool	See If Your System Has Been Affected by malware Download Malware Removal Tool
User Experience	Join our forum to Discuss CryPy Ransomware.
Data Recovery Tool	Windows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

CryPy Ransomware – How Does It Perform an Infection

This devastating threat is strongly believed to use a combination of tools that conceal it from any firewall and most conventional antivirus programs on a victim computer. One of those tools may be a malicious e-mail attachment tricking the user into opening it. Such attachments may be fake .PDF or Microsoft Office documents that when opened can cause the infection. The documents seem to be from a legitimate sender, and the e-mail aims to convince the user that they are of an important nature.

But attachments may not be the only method for spreading malicious files. Malicious web links posted on social media and other websites are also reported to cause infections by a drive-by-download after a malicious browser redirect. Such malicious web sites may be presented to the user in the form of an advertisement(malvertising) that is displayed as a pop-up or a direct browser redirect as a result of adware (PUP) installed on the victim’s computer.

CryPy Ransomware In Detail

When CryPy ransomware Is activated on the computer of it’s victim, the ransomware virus is believed to perform several different activities, to collect information about the compromised system and send it to the C&C servers of the virus.

Then the CryPy virus may drop it’s payload by contacting its server and downloading it from there. The payload may be one or more files of the following file types:

After the payload of CryPy has been dropped, the virus may begin to modify numerous of settings, such as modify the Windows Registry Editor so that the malicious executables run on system startup. The usually targeted registry keys for this are:

After this has been conducted, the Virus may begin to encrypt the files on the compromised computer. It may scan for wide variety of file extensions to encrypt but the CryPy ransomware is mainly programmed to scan for and encrypt often used types of files, such as:

Videos.
Image files.
Audio files.
All types of documents opened with Microsoft Office, Adobe, Photoshop and other software.
Database files.

As soon as the virus detects that a file has been found, it performs the following activities:

The specific thing about this virus is that it connects to the sever every time one file is encrypted, generates a unique key for that file and sends it to the cyber-crooks. This means that if you have 100 files, it will contact the server 100 times.

The encrypted files by CryPy ransomware are enciphered with a very strong AES (Advanced Encryption Standard) algorithm. They can no longer be opened by any program because their code structure has changed. In addition to this, the virus not only adds it’s distinctive .cry file extension, but it also changes the file names, for example:

This is very similar to other ransomware viruses using the same extensions, such as the Central Security Treatment Organization Ransomware.

After enciphering the files of the infected computer, CryPy ransomware adds a Halloween style picture on the victim’s computer and adds a “README_FOR_DECRYPT.txt” ransom note which it automatically opens. The ransom note has the following message to the victims CryPy:

CryPy Ransomware – Summary, Removal, and File Restoration

In case you want to restore your files, first, it is important to remove the CryPy virus from your computer. To do this, it is strongly advisable to follow the step-by-step instructions below. They are methodologically organized to assist you in removing CryPy ransomware completely from your computer. Furthermore, malware researchers also recommend using an advanced anti-malware software that will assist you into swiftly and automatically erasing all files associated with this malware.

If you are looking for methods to restore .cry encrypted files, at this point, there is no decryptor available for free. However, you can try the alternative methods illustrated in step “3. Restore files encrypted by CryPy” below.

Ventsislav Krastev

Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.

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Step 1: Scan for CryPy with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.

Download

Malware Removal Tool

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It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.

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2. After you have installed SpyHunter, wait for it to update automatically.

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3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

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4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.

If any threats have been removed, it is highly recommended to restart your PC.

Ransomware Automatic Removal - Video Guide

Step 2: Uninstall CryPy and related malware from Windows

Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:

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1. Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.

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2. In the field type in "appwiz.cpl" and press ENTER.

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3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"Follow the instructions above and you will successfully delete most unwanted and malicious programs.

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Step 3: Clean any registries, created by CryPy on your computer.

The usually targeted registries of Windows machines are the following:

• HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
• HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
• HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
• HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

You can access them by opening the Windows registry editor and deleting any values, created by CryPy there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.

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2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.

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3. You can remove the value of the virus by right-clicking on it and removing it. Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.

IMPORTANT!
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.

Step 4: Boot Your PC In Safe Mode to isolate and remove CryPy

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!

We Recommend To Scan Your PC with SpyHunter

Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria

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1. Hold Windows Key + R.

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2. The "Run" Window will appear. In it, type "msconfig" and click OK.

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3. Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK". Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.

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4. When prompted, click on "Restart" to go into Safe Mode.

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5. You can recognise Safe Mode by the words written on the corners of your screen.

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Step 5: Try to Restore Files Encrypted by CryPy.

Method 1: Use STOP Decrypter by Emsisoft.

Not all variants of this ransomware can be decrypted for free, but we have added the decryptor used by researchers that is often updated with the variants which become eventually decrypted. You can try and decrypt your files using the instructions below, but if they do not work, then unfortunately your variant of the ransomware virus is not decryptable.

Follow the instructions below to use the Emsisoft decrypter and decrypt your files for free. You can download the Emsisoft decryption tool linked here and then follow the steps provided below:

1 Right-click on the decrypter and click on Run as Administrator as shown below:

2. Agree with the license terms:

3. Click on "Add Folder" and then add the folders where you want files decrypted as shown underneath:

4. Click on "Decrypt" and wait for your files to be decoded.

Note: Credit for the decryptor goes to Emsisoft researchers who have made the breakthrough with this virus.

Method 2: Use data recovery software

Ransomware infections and CryPy aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the recommended Data Recovery software by clicking on the link underneath:

EaseUS Data Recovery Software

Simply click on the link and on the website menus on the top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.

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CryPy-FAQ

What is CryPy Ransomware?

CryPy is a ransomware infection - the malicious software that enters your computer silently and blocks either access to the computer itself or encrypt your files. 

Many ransomware viruses use sophisticated encryption algorithms to make your files inaccessible. The goal of ransomware infections is to demand that you pay a ransom payment to get access to your files back.

What Does CryPy Ransomware Do?

Ransomware in general is a malicious software that is designed to block access to your computer or files until a ransom is paid.

Ransomware viruses can also damage your system, corrupt data and delete files, resulting in the permanent loss of important files.

How Does CryPy Infect?

Via several ways.CryPy Ransomware infects computers by being sent via phishing emails, containing virus attachment. This attachment is usually masked as an important document, like an invoice, bank document or even a plane ticket and it looks very convincing to users.

Another way you may become a victim of CryPy is if you download a fake installer, crack or patch from a low reputation website or if you click on a virus link. Many users report getting a ransomware infection by downloading torrents.

How to Open .CryPy files?

You can't without a decryptor. At this point, the .CryPy files are encrypted. You can only open them once they are decrypted using a specific decryption key for the particular algorithm.

What to Do If a Decryptor Does Not Work?

Do not panic, and backup the files. If a decryptor did not decrypt your .CryPy files successfully, then do not despair, because this virus is still new.

Can I Restore ".CryPy" Files?

Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .CryPy files. 

These methods are in no way 100% guaranteed that you will be able to get your files back. But if you have a backup, your chances of success are much greater.

How To Get Rid of CryPy Virus?

The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti-malware program.

It will scan for and locate CryPy ransomware and then remove it without causing any additional harm to your important .CryPy files.

Can I Report Ransomware to Authorities?

In case your computer got infected with a ransomware infection, you can report it to the local Police departments. It can help authorities worldwide track and determine the perpetrators behind the virus that has infected your computer.

Below, we have prepared a list with government websites, where you can file a report in case you are a victim of a cybercrime:

Cyber-security authorities, responsible for handling ransomware attack reports in different regions all over the world:

Germany - Offizielles Portal der deutschen Polizei

United States - IC3 Internet Crime Complaint Centre

United Kingdom - Action Fraud Police

France - Ministère de l'Intérieur

Italy - Polizia Di Stato

Spain - Policía Nacional

Netherlands - Politie

Poland - Policja

Portugal - Polícia Judiciária

Greece - Cyber Crime Unit (Hellenic Police)

India - Mumbai Police - CyberCrime Investigation Cell

Australia - Australian High Tech Crime Center

Reports may be responded to in different timeframes, depending on your local authorities.

Can You Stop Ransomware from Encrypting Your Files?

Yes, you can prevent ransomware. The best way to do this is to ensure your computer system is updated with the latest security patches, use a reputable anti-malware program and firewall, backup your important files frequently, and avoid clicking on malicious links or downloading unknown files.

Can CryPy Ransomware Steal Your Data?

Yes, in most cases ransomware will steal your information. It is a form of malware that steals data from a user's computer, encrypts it, and then demands a ransom in order to decrypt it.

In many cases, the malware authors or attackers will threaten to delete the data or publish it online unless the ransom is paid.

Can Ransomware Infect WiFi?

Yes, ransomware can infect WiFi networks, as malicious actors can use it to gain control of the network, steal confidential data, and lock out users. If a ransomware attack is successful, it could lead to a loss of service and/or data, and in some cases, financial losses.

Should I Pay Ransomware?

No, you should not pay ransomware extortionists. Paying them only encourages criminals and does not guarantee that the files or data will be restored. The better approach is to have a secure backup of important data and be vigilant about security in the first place.

What Happens If I Don't Pay Ransom?

If you don't pay the ransom, the hackers may still have access to your computer, data, or files and may continue to threaten to expose or delete them, or even use them to commit cybercrimes. In some cases, they may even continue to demand additional ransom payments.

Can a Ransomware Attack Be Detected?

Yes, ransomware can be detected. Anti-malware software and other advanced security tools can detect ransomware and alert the user when it is present on a machine.

It is important to stay up-to-date on the latest security measures and to keep security software updated to ensure ransomware can be detected and prevented.

Do Ransomware Criminals Get Caught?

Yes, ransomware criminals do get caught. Law enforcement agencies, such as the FBI, Interpol and others have been successful in tracking down and prosecuting ransomware criminals in the US and other countries. As ransomware threats continue to increase, so does the enforcement activity.

About the CryPy Research

The content we publish on SensorsTechForum.com, this CryPy how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific malware and restore your encrypted files.

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How did we conduct the research on this ransomware?

Our research is based on an independent investigation. We are in contact with independent security researchers, and as such, we receive daily updates on the latest malware and ransomware definitions.

Furthermore, the research behind the CryPy ransomware threat is backed with VirusTotal and the NoMoreRansom project.

To better understand the ransomware threat, please refer to the following articles which provide knowledgeable details.

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As a site that has been dedicated to providing free removal instructions for ransomware and malware since 2014, SensorsTechForum’s recommendation is to only pay attention to trustworthy sources.

How to recognize trustworthy sources:

• Always check "About Us" web page.
• Profile of the content creator.
• Make sure that real people are behind the site and not fake names and profiles.
• Verify Facebook, LinkedIn and Twitter personal profiles.

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