Home / Removal Guide / Ransomware / Gerosan Virus Removal Guide (+Decode .gerosan files) – Djvu Ransomware

Gerosan Virus Removal Guide (+Decode .gerosan files) – Djvu Ransomware

Gerosan – Ransomware

The Gerosan mean a ransomware-type infection. The virus comes from the Djvu ransomware family. Gerosan was elaborated particularly to encrypt all major file types. When the file is encrypted people are unable to use them. Gerosan adds the “.gerosan” extension for each file encrypted by it. For example, the file “myphoto.jpg“, as soon as encrypted by Gerosan, will be renamed into “myphoto.jpg.gerosan“. As quickly as the encryption is completed, Gerosan places a special text file into every folder containing the encrypted data.

The message given by Gerosan text file requesting for the ransom is definitely the same as the statements given by other ransomware virus representatives coming from the Djvu family. It actually discusses that the info is encrypted which the only way to bring back it is to use a a special decryption key. Unfortunately, this is absolutely true. The type of cryptography mechanism applied by Gerosan is still not correctly examined. Still, it is absolutely certain that each victim might be given the specific decryption key, which is completely distinct. It is impossible to restore the files without the key available.

Another technique of Gerosan is that the victims cannot gain access to the key. The key is saved on a specific server run by the frauds connected with Gerosan ransomware. To get the key and recover the important info people need to pay the ransom, which totals up to $980. To obtain the payment information users are advised to contact the frauds through e-mail or telegram. The alert also suggests that the users need to contact the Gerosan developers within 72 hours after the encryption occurred. The message says that doing so users will get a 50% discount, so the ransom quantity will fall to $490.

Nonetheless, irrespective of the requested quantity, people need to keep away from paying the ransom virus. Cyber frauds are not fair, so they tend to completely ignore what their victims feel about the problem, even when the payment reaches their pockets. This is why paying the ransom generally does not provide any positive result and people simply lose their money for absolutely nothing.

We strongly recommend 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 Gerosan ransomware and to recover the information data totally free. Therefore, the only right decision is to recover the lost information from the available backup.

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Virus Summary

NameGerosan Ransomware
File Extension.gerosan
TypeRansomware
FamilyDjvu
Short DescriptionThe 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.
SymptomsFile 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 gerosan extension to all the files modified by it.
Distribution MethodSpam Emails, Email Attachments
Similar InfectionsMuslat, Myskle, Boston
Removal Tool   GridinSoft Anti-Malware

Remember that the internet is now overwhelmed with threats that look comparable to Gerosan ransomware. It is similar Muslat and many other ransomware-type threats. Destructive programs of such kind are generally elaborated to encrypt important information and to state the demand before the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a comparable algorithm to produce the unique decryption key for files decryption.

Therefore, as long as the ransomware is still being developed or has some hidden bugs, by hand recovering the information is merely not feasible. The only way to prevent the loss of your important information is to frequently 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 USB Flash Drive or external disk drive for this purpose, or refer to the help of the cloud storage. If you store your backup files on your common system they may be encrypted in addition to other files, so it’s definitely not a good storage location.

How did ransomware infect my PC?

There are numerous methods used by online scams to distribute Gerosan virus. Even though it doubts how exactly Gerosan injects your system, there are some leaks through which it may penetrate the system:

  • integration with third-party software application, especially freeware;
  • spam e-mails from unidentified senders;
  • websites rendering free hosting services;
  • pirated peer-to-peer (P2P) downloads.

Often Gerosan virus might be presented as some genuine software application, for instance, in the pop-ups instructing users to carry out some crucial software application updates. This is the common technique used by online scams to persuade people into downloading and installing Gerosan infection manually, by means of their direct participation in the installation process.

In addition, the criminals might refer to various email spam strategies to inject harmful codes into 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 motivating users to open some receipts, files, tax reports or invoices.

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Needless to mention, opening such files or clicking on such dangerous links may badly damage the PC. Fictitious Adobe Flash Player update informs may result in Gerosan virus injection. When it comes to the cracked applications, these illegally downloaded programs may also consist of malicious codes causing Gerosan secret installation. Finally, injection of Gerosan may happen by methods of Trojans that covertly get injected into the system and set up destructive utilities without the user’s consent.

Is there any method to avoid the injection of Gerosan ransom virus?

Although there is no 100% guarantee to prevent your computer from getting infected, there are some pieces of suggestions we wish to show with you. To start with, be really mindful when you surf the web and particularly while downloading totally free apps. Stay 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 and your entire OS is always appropriately updated.

Obviously, downloading pirated software is illegal and may result in important damage to be produced your PC. For this reason, stay away from downloading cracked software. You are also strongly advised to reconsider your existing security software and perhaps switch to another security solution that can render much better services of protecting your Windows.

Screenshot of files with “.gerosan” extension added by the ransomware:
Gerosan Ransomware - encrypt files with .gerosan extension

Use GridinSoft Anti-Malware to remove Gerosan ransomware from your computer

1.Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

  GridinSoft Anti-Malware

2. Double-click on the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-ag.exe file to install GridinSoft Anti-Malware on your computer.
GridinSoft Anti-Malware
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 Setup

3. Press Install button for run GridinSoft Anti-Malware.

GridinSoft Anti-Malware Install

3.Once installed, GridinSoft Anti-Malware will automatically run.

GridinSoft Anti-Malware  Start

4. Wait for the GridinSoft Anti-Malware scan to complete.

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.
GridinSoft Anti-Malware Scan

5. Click on “Clean Now”.

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.
GridinSoft Anti-Malware Scan Result

[Total: 1    Average: 5/5]

About Daniel Zimmermann

Daniel Zimmermann has been writing on security and malware subjects for many years and has been working in the security industry for over 10 years. Daniel was educated at the Saarland University in Saarbrücken, Germany and currently lives in New York.

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3 comments

  1. hi zimmermann
    my pc infected by gerosan ransomware how to decrypt files and disinfect please help

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