This article has been created in order to help you by explaining what is the .crypo verson of RotorCrypt ransomware virus and how to decrypt files, encrypted with !decrfile@tutanota.com.crypo file extension for free.
A new version of the notorious RotorCrypt ransomware infection has been detected out in the wild. The ransomware virus aims to infect your computer and then encrypt the files in it, making them no longer able to be opened. The end goal of the virus is to set the .crypo file extension along with the e-mail decrfile@tutanota.com e-mail for contact. This has been done with the purpose to get the victims to contact the cyber-crooks on their e-mail and get them to pay a hefty ransom fee in BitCoins in order to get the encrypted files decrypted and working once again. Luckily however, there is a decryption available for the .crypo family of ransomware viruses and you can recover your files for free, if you read this article carefully and follow the instructions within it.
Threat Summary
| Name | .crypo Files Virus |
| Type | Ransomware, Cryptovirus |
| Short Description | A variant of the RotorCrypt ransomware virus family. Aims to encrypt the files on the infected computers and then ask victims to pay ransom to get them back. |
| Symptoms | Files are encrypted with an added !decrfile@tutanota.com.crypo file extension. |
| Distribution Method | Spam Emails, Email Attachments, Executable files |
| Detection Tool |
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User Experience | Join Our Forum to Discuss .crypo Files Virus. |
How Does RotorCrypt .crypo Infect
The infection process of this virus is rather simplistic. The cyber-criminals have managed to likely get their hands on a list of e-mails which are used by real people and these e-mail addresses are being spammed with malicious e-mail spam messages. Such e-mail spam messages often carry an e-mail file extension in them, from the likes of fake documents (invoices, receipts, etc.). Some e-mails may even contain web links that may lead the victim to a malicious JavaScript execution which leads to the infection.
In some occasions, malicious Microsoft Office documents are used with malicious macros embedded within them. Such e-mails often get the user to click on “Enable Content” or similar “Enable Editing” buttons on the document, which cause the infection and the following chain of activities to be triggered:
In addition to those, there may be more passive methods for infection via this ransomware virus. Such are often believed to be fake setups of programs, game patches, cracks, key generators or software license activators which may be uploaded on malicious websites all over the world.
.crypo Files Virus – Analysis and Background
The main payload of this ransomware infection has been reported(https://www.virustotal.com/#/file/4213288a599af1981743832866461d735f2b25d80869a9da5f75ad1357449cda/) by malware researchers to be named with a random name and have the following parameters:
→ SHA-256: 4213288a599af1981743832866461d735f2b25d80869a9da5f75ad1357449cda
Name: SJGZYXKH.EXE
Size: 77.5 KB
Detected as the latest version of RotorCrypt ransomware, this malware has had quite some activity over time. When it infects a targeted computer, the .crypo virus begins a scan in order to establish whether or not the malware has been ran beforehand on the victim’s computer. If so, the virus may shut down.
Another check the virus performs is the OS version and if it is supported, it runs an obfuscated payload, which may consist of more than one files, that may be dropped in the following Windows folders:
- %AppData%
- %Local%
- %LocalLow%
- %Temp%
- %Common%
The main payload files htat have been detected so far in association with this ransomware virus have been reported by researchers to be located in various places on infected computers with different names, often random ones with uppercase and lowercase letters. Here are some of the malicious files, reported with associations to different variants of this ransomware virus:
→ %TEMP%\
C:\Users\User_name\AppData\local\
C:\Users\User_name\Desktop\
C:\GWWABPFL_Unpack.EXE
%LOCALAPPDATA%\Microsoft Help\DNALWmjW.exe
%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup\jHlxJqfV.lnk
In addition to dropping the malicious files, this ransomware infection also aims to delete the shadow volume copies on the computers that have been infected by it. This is done by .crypo having to assume administrator privileges on the victim’s PC and run a script that execute shte vssadmin and bcedit commands in Windows Command Prompt in the background of the victim’s computer:
→ vssadmin.exe delete shadows /all /Quiet
bcdedit.exe /set {current} bootstatuspolicy ignoreallfailures
bcdedit.exe /set {current} recoveryenabled no
RotorCrypt has had quite the variants over the past few years and is actually an updated variant of GomaSom ransomware. If we had to align them chronologically, here are all of the previous updated variants of the virus which were detected since the June 2015:
Variants from 2015:
.-.DIRECTORAT1C8@GMAIL.COM.roto>
.-.directorat1c@gmail.com.roto
.-.CRYPTSb@GMAIL.COM.roto>
!-==kronstar21@gmail.com=–.crypt>
!==helpsend369@gmail.com==.crypt>
!__crypthelp12@gmail.com_.crypt
!___prosschiff@gmail.com_.crypt>
!____moskali1993@mail.ru___.crypt>
!______sufnex331@gmail.com______.crypt
!______bigromintol971@gmail.com______.crypt
!_______GASWAGEN123@GMAIL.COM____.crypt
!_________pkigxdaq@bk.ru_______.crypt
!______________DESKRYPTEDN81@GMAIL.COM.crypt
!____GLOK9200@GMAIL.COM____.tar
!____cocoslim98@gmail.com____.tarVariants from 2016
!____GLOK9200@GMAIL.COM____.tar
!____cocoslim98@gmail.com____.tar
!_____GEKSOGEN911@GMAIL.COM____.c300
!_____DILINGER7900@GMAIL.COM_____.GRANIT
Variants from 2017
!____hamil8642@gmail.com___.GRANIT
tokico767@gmail.com.adamant
edgar4000@protonmail.com____.granit
!______DILIGATMAIL7@tutanota.com______.OTR
________DILIGATMAIL@tutanota.com________.pgp
!______PIFAGORMAIL@tutanota.com______.SPG
_______PIFAGORMAIL@tutanota.com_____.rar
!_____INKASATOR@TUTAMAIL.COM____.ANTIDOT
!-=solve a problem=-=grandums@gmail.com=-.PRIVAT66
!==solve a problem==stritinge@gmail.com===.SENRUS17
!_____FIDEL4000@TUTAMAIL.COM______.biz
!____________DESKRYPT@TUTAMAIL.COM________.rar
!____________ENIGMAPRO@TUTAMAIL.COM_______.PGP
!___________ANCABLCITADEL@TUTAMAIL.COM__________.PGPVariants from 2018
!==SOLUTION OF THE PROBLEM==blacknord@tutanota.com==.Black_OFFserve!
!decrfile@tutanota.com.crypo
.crypo Files Virus Encryption Process
The encryption of this ransomware has not changed much since the first version appeared before. RotorCrypt still uses the RSA encryption algorithm in order to encode files on the infected computers. This cipher, known as Rivest-Shamir-Adleman generates a private and public keys which are unique and the files have bytes of them encrypted with the cipher, not the whole file. The files that are encrypted by this version of the ransomware may be of the following file types:
→ .1cd, .avi, .bak, .bmp, .cf, .cfu, .csv, .db, .dbf, .djvu, .doc, .docx, .dt, .elf, .epf, .erf, .exe, .flv, .geo, .gif, .grs, .jpeg, .jpg, .lgf, .lgp, .log, .mb, .mdb, .mdf, .mxl, .net, .odt, .pdf, .png, .pps, .ppt, .pptm, .pptx, .psd, .px, .rar, .raw, .st, .sql, .tif, .txt, .vob, .vrp, .xls, .xlsb, .xlsx, .xml, .zip
After the encryption has complete, the files assume the following appearance:
Remove RotorCrypt Ransomware and Decrypt .crypo Files
In order to provide you with the most efficient way to remove this malware and decrypt your files, we have decided to separate the removal instructions in two phases, phase 1 being the removal and 2 being the decryption instructions. In case you have already gotten rid of this malware you can go right ahead by jumping to the decryption instructions for your files.
In order to fully erase RotorCrypt from your computer system, we have prepared manual and removal instructions which you can follow below. In the even that you are experiencing difficulties in manual removal, experts often advise to perform the removal automatically, preferably by downloading an advanced anti-malware software, which will make sure this malware is fully gone from your system and it remains protected against future infections as well.
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 .crypo Files Virus with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall .crypo Files Virus 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 .crypo Files Virus 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 .crypo Files Virus 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 .crypo Files Virus
Step 5: Try to Restore Files Encrypted by .crypo Files Virus.
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 .crypo Files Virus 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.
.crypo Files Virus-FAQ
What is .crypo Files Virus Ransomware?
.crypo Files Virus 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 .crypo Files Virus 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 .crypo Files Virus Infect?
Via several ways..crypo Files Virus 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 .crypo Files Virus 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 ..crypo Files Virus files?
You can't without a decryptor. At this point, the ..crypo Files Virus 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 ..crypo Files Virus files successfully, then do not despair, because this virus is still new.
Can I Restore "..crypo Files Virus" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore ..crypo Files Virus 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 .crypo Files Virus 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 .crypo Files Virus ransomware and then remove it without causing any additional harm to your important ..crypo Files Virus 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 .crypo Files Virus 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 .crypo Files Virus Research
The content we publish on SensorsTechForum.com, this .crypo Files Virus 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 .crypo Files Virus 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.
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