The message given by CVOSI text file asking for the ransom is absolutely the like the statements given by other ransomware virus representatives belonging to the CONTI type. It actually points out that the info is encrypted and that the only way to restore it is to use a a special decryption key. Sadly, this is absolutely true. The sort of cryptography mechanism applied by CVOSI is still not properly examined. Still, it is absolutely particular that each victim might be given the specific decryption key, which is absolutely unique. It is impossible to bring back the files without the key available.
Another technique of CVOSI is that the victims cannot get to the key. The key is kept on a specific server run by the frauds related to CVOSI ransomware. To get the key and recover the important information people need to pay the ransom.
CVOSI encrypted your documents, but that might not be the only damage done to you. The ransomware might still be hidingon your computer. To identify whether this holds true, we suggest downloading GridinSoft Anti-Malware.
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Nevertheless, regardless of the asked for amount, people should keep away from paying the ransom virus. Cyber frauds are not fair, so they tend to entirely ignore what their victims feel about the issue, even when the payment reaches their pockets. This is why paying the ransom usually does not give any positive outcome and people simply lose their money for absolutely nothing.
We highly advise that you do not contact these crooks and absolutely do not transfer money into their accounts. It is said to admit that there are no utilities able to crack CVOSI ransomware and to recover the information data totally free. Therefore, the just best decision is to recover the lost data from the available backup.
Name | CVOSI Ransomware |
File Extension | .CVOSI |
Type | Ransomware |
Family | CONTI |
Short Description | The ransomware encrypts all the data stored on your system and requires a ransom to be paid on your part supposedly to recover your important files. |
Symptoms | File encryption by the ransomware is performed by means of the AES and RSA encryption algorithms. Once the encryption is completed, the ransomware adds its special CVOSI extension to all the files modified by it. |
Distribution Method | Spam Emails, Email Attachments |
Removal Tool | GridinSoft Anti-Malware |
Bear in mind that the world wide web is now overwhelmed with threats that look comparable to CVOSI ransomware. Malicious programs of such kind are normally elaborated to encrypt crucial information and to state the need before the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a comparable algorithm to create the distinct decryption key for information decryption.
Therefore, as long as the ransomware is still being developed or has some hidden bugs, manually recovering the information is merely not feasible. The only way to avoid the loss of your important information is to regularly create backups of your important information.
Bear in mind that even if you create such backups, they need to be placed into a special storage utility not connect to your main computer. You may use the Memory Stick or external disk drive for this purpose, or refer to the help of the cloud storage. If you keep your backup files on your common system they may be encrypted together with other files, so it’s absolutely not a good storage place.
There are several methods used by online frauds to distribute CVOSI ransom virus. Although it doubts how precisely CVOSI injects your computer, there are some leaks through which it may infiltrate the system:
Typically CVOSI ransomware may be presented as some legitimate software application, for instance, in the pop-ups instructing users to execute some crucial software application updates. This is the common trick used by online scams to persuade people into downloading and installing CVOSI infection manually, by ways of their direct participation in the installation process.
Furthermore, the criminals might describe various email spam methods to inject malicious codes into Windows PC. So, they may describe to sending unsolicited spam emails with tricky notifications promoting users to download the attachments or click on certain download links, for example, the ones encouraging users to open some receipts, files, tax reports or invoices.
Needless to mention, opening such documents or clicking on such dangerous links may seriously damage the PC. Fictitious Adobe Flash Player upgrade informs may result in CVOSI ransom injection. When it comes to the cracked applications, these illegally downloaded programs may also include destructive codes causing CVOSI secret installation. Lastly, injection of CVOSI may take place by means of Trojans that covertly get injected into the system and set up malicious tools without the user’s consent.
Although there is no 100% guarantee to avoid your system from getting infected, there are some pieces of suggestions we wish to share with with you. Firstly, be very careful when you surf the web and particularly while downloading complimentary programs. Keep away from opening suspicious email attachments, especially when the sender of the email is not familiar to you.
Bear in mind that some freeware installers may consist of other unwanted utilities in the package, so they may be destructive. Make sure that your current antivirus software and your entire operating system is always appropriately updated.
Obviously, downloading pirated software is prohibited and may lead to important damage to be made for your system. For this reason, stay away from downloading cracked software. You are likewise strongly advised to reconsider your existing security software and possibly change to another security solution that can render better services of defending your PC.
Screenshot of files with “.CVOSI” extension added by the ransomware:
You can download GridinSoft Anti-Malware by clicking the button below:
When setup file has finished downloading, double-click on the setup-antimalware-ag.exe file to install GridinSoft Anti-Malware on your computer.
An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.
GridinSoft Anti-Malware will automatically start scanning your computer for Win Speedup 2018 and other malicious programs. This process can take a 20-30 minutes, so we suggest you periodically check on the status of the scan process.
When the scan has completed, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.
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