Ransom malware, known by the name zCrypt has been reported to target primarily Russian-speaking countries, researchers claim. 
The ransomware may use a strong RSA-2048 cipher to encrypt the files on the computers it infects. After this, it leaves a ransom note written entirely In Russian and demanding to contact the cybercriminal’s email to pay the ransom money.
Users who have had their files encrypted by zCrypt ransomware are warned not to contact the cyber-criminals and not to pay the ransom money for security reasons. Experts also recommend removing the ransomware and trying alternative methods, such as the ones in this article to restore your data.
Threat Summary
| Name | zCrypt |
| Type | Ransomware |
| Short Description | The ransomware encrypts files with the RSA-2048 algorithm and asks a ransom for decryption. |
| Symptoms | Files are encrypted with a .zcrypt file extension added to them and become inaccessible. A ransom note with instructions for paying the ransom shows as a .txt file. |
| Distribution Method | Spam Emails, Email Attachments, File Sharing Networks. |
| Detection Tool |
See If Your System Has Been Affected by malware
Download
Malware Removal Tool
|
| User Experience | Join our forum to Discuss zCrypt 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. |
zCrypt Ransomware – Update April 2020
ZCrypt ransomware has resurfaced in April 2020, almost four years after this first sample has been discovered. It encrypts using the RSA-2048 encryption algorithm, by choosing from around twenty different, public, hardcoded keys. The zCrypt ransomware note looks like this:
zCrypt ransomware might have new changes in the coming weeks, or there might be nothing else new. This here article about the zcrypt ransomware will be duly updated according said changes if they happen.
Zcrypt Ransomware – Distribution
To be widespread across user PCs, zCrypt is believed to use malicious e-mail attachments. One of the malicious executables has been reported by Kaspersky researchers to be pretending to be an invoice, suggesting a spam message with the same topic may be used to trick the user into opening it:
→ File name: invoice-order.exe
File size: 791.0 KB ( 809984 bytes )Source: Kaspersky
This technique is also typical for other ransomware variants, such as Zyklon, Cerber and Locky Ransomware.Users are strongly advised to use services which check URLs and email attachments before they are downloaded on their drives. One of those services that can assist with that is VirusTotal, which provided over 20 detections of zCrypt’s malicious executable.
Zcrypt Ransomware In Detail
Once activated on the computer, the payload carrying file may create an exploit on the infected computer, open a port and download or extract the following malicious files:
→ In C:\Users\{User’s Directory}\Appdata\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\:
Zcrypt.lnk
In C:\Users\{User’s Directory}\Appdata\Roaming:
zcrypt.exe
btc.addr
public.key
In %Desktop%:
How to decrypt files.html
In the same time a registry entry for the ransomware may be created to run the encryption on Windows startup:
→ HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\zcrypt
After creating its malicious files, zCrypt Ransowmare begins to encrypt the files of the infected computer. It scans for and encrypts the most widely used file types, for example:
→ “PNG .PSD .PSPIMAGE .TGA .THM .TIF .TIFF .YUV .AI .EPS .PS .SVG .INDD .PCT .PDF .XLR .XLS .XLSX .ACCDB .DB .DBF .MDB .PDB .SQL .APK .APP .BAT .CGI .COM .EXE .GADGET .JAR .PIF .WSF .DEM .GAM .NES .ROM .SAV CAD Files .DWG .DXF GIS Files .GPX .KML .KMZ .ASP .ASPX .CER .CFM .CSR .CSS .HTM .HTML .JS .JSP .PHP .RSS .XHTML. DOC .DOCX .LOG .MSG .ODT .PAGES .RTF .TEX .TXT .WPD .WPS .CSV .DAT .GED .KEY .KEYCHAIN .PPS .PPT .PPTX ..INI .PRF Encoded Files .HQX .MIM .UUE .7Z .CBR .DEB .GZ .PKG .RAR .RPM .SITX .TAR.GZ .ZIP .ZIPX .BIN .CUE .DMG .ISO .MDF .TOAST .VCD SDF .TAR .TAX2014 .TAX2015 .VCF .XML Audio Files .AIF .IFF .M3U .M4A .MID .MP3 .MPA .WAV .WMA Video Files .3G2 .3GP .ASF .AVI .FLV .M4V .MOV .MP4 .MPG .RM .SRT .SWF .VOB .WMV 3D .3DM .3DS .MAX .OBJ R.BMP .DDS .GIF .JPG ..CRX .PLUGIN .FNT .FON .OTF .TTF .CAB .CPL .CUR .DESKTHEMEPACK .DLL .DMP .DRV .ICNS .ICO .LNK .SYS .CFG”Source:fileinfo.com
The ransomware uses the .zcrypt file extension which it ads to the files that are encoded, for example:
→ Picture.jpg.zcrypt
The encrypted files are believed to be encoded with a powerful RSA-2048 cipher. After encryption, the ransomware may change the wallpaper of the infected user to the following one:
Source: Infected User
Furthermore, there has been a Russian version of the ransomware reported, which leaves a “!ИНСТРУКЦИЯ!.html”(Instruction) file containing the following ransom note in Russian:
→ВНИМАНИЕ! Ваши файлы зашифрованы криптостойким алгоритмом RSA-2048!
Отправьте на flsunlocker@yahoo.com один из зашифрованных файлов.
Попытки самостоятельной расшифровки могут привести к безвозвратной порче данных!
В письме укажите также ваш ID – {UNIQUE ID}”
Translation:
ATTENTION! Your files are encrypted with the algorithm RSA-2048!
Send to flsunlocker@yahoo.com one of the encrypted files.
Any attempts to decipher the files yourself can lead to permanent destruction of the files.
In the letter include your unique ID = {UNIQUE ID} Source: id-ransomware.blogspot.bg
Remove zCrypt Ransomware and Restore the Files
Experts strongly recommend removing this ransomware instead of paying the ransom money to the cyber-criminals. One way to do it efficiently is by following the step-by-step instructions outlined below. One preferable way to remove it is to use an advanced anti-malware tool which will assist you with completely deleting zCrypt associated files and registry entries from your computer. Such tool will also assist with protecting you from future threats.
To revert at least some of your files back to normal, we advise trying the alternative methods we provided in step “3. Restore files encrypted by zCrypt” 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.
Follow Me:
- Step 1
- Step 2
- Step 3
- Step 4
- Step 5
Step 1: Scan for zCrypt with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall zCrypt 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:
Follow the instructions above and you will successfully delete most unwanted and malicious programs.
Step 3: Clean any registries, created by zCrypt 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 zCrypt there. This can happen by following the steps underneath:
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.
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 zCrypt
Step 5: Try to Restore Files Encrypted by zCrypt.
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 zCrypt 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.
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.
zCrypt-FAQ
What is zCrypt Ransomware?
zCrypt 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 zCrypt 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 zCrypt Infect?
Via several ways.zCrypt 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 zCrypt 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 .zCrypt files?
You can't without a decryptor. At this point, the .zCrypt 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 .zCrypt files successfully, then do not despair, because this virus is still new.
Can I Restore ".zCrypt" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .zCrypt 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 zCrypt 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 zCrypt ransomware and then remove it without causing any additional harm to your important .zCrypt 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 zCrypt 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 zCrypt Research
The content we publish on SensorsTechForum.com, this zCrypt 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.
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 zCrypt 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.
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.