Remove SunnyDay Virus (.SunnyDay Files Ransomware)

SunnyDay – Ransomware

The SunnyDay mean a ransomware-type infection. SunnyDay was elaborated particularly to encrypt all major file types. When the file is encrypted people are not able to use them. SunnyDay adds the “.SunnyDay” extension for each file encrypted by it. For example, the file “myphoto.jpg“, once encrypted by SunnyDay, will be renamed into “myphoto.jpg.SunnyDay“. As quickly as the encryption is finished, SunnyDay places a special text file into every folder containing the encrypted data.

The message given by SunnyDay text file requesting for the ransom is definitely the same as the statements given by other ransomware representatives. It literally mentions that the information is encrypted and that the only way to bring back it is to use a a special decryption key. Sadly, this is definitely true. The type of cryptography mechanism used by SunnyDay is still not properly examined. Still, it is absolutely particular that each victim may be given the specific decryption key, which is completely unique. It is difficult to bring back the files without the key available.

Another trick of SunnyDay is that the victims cannot get to the key. The key is kept on a particular server run by the frauds related to SunnyDay ransomware. To get the key and recover the important information people have to pay the ransom.

Nonetheless, irrespective of the asked for amount, people need to keep away from paying the ransom. 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 provide any positive outcome and people just lose their money for nothing.

We strongly encourage 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 SunnyDay ransomware and to recover the data data totally free. Thus, the just right decision is to recover the lost information from the available backup.

Virus Summary

Name SunnyDay Ransomware
File Extension .SunnyDay
Type Ransomware
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 SunnyDay extension to all the files modified by it.
Distribution Method Spam Emails, Email Attachments
Removal Tool   GridinSoft Anti-Malware

Remember that the world wide web is now overwhelmed with threats that look comparable to SunnyDay ransomware. Malicious programs of such kind are typically elaborated to encrypt essential data 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.

Thus, as long as the ransomware is still being developed or has some hidden bugs, manually recovering the information is just not feasible. The only way to avoid the loss of your essential files is to regularly create backups of your important information.

Keep in mind that even if you create such backups, they must be put into a special storage utility not connect to your main PC. 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 keep your backup files on your common system they may be encrypted along with other files, so it’s certainly not a good storage location.

How did ransomware infect my PC?

There are numerous ways used by online scams to distribute SunnyDay virus. Despite the fact that it is uncertain how precisely SunnyDay injects your PC, there are some leaks through which it may penetrate the system:

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

Typically SunnyDay virus might be presented as some legitimate software application, for instance, in the pop-ups instructing users to implement some crucial software application updates. This is the typical trick used by online frauds to persuade people into downloading and installing SunnyDay infection manually, by ways of their direct participation in the installation process.

Additionally, the criminals may refer to different e-mail spam methods to inject harmful codes into copmuter. So, they may refer to to sending unsolicited spam emails with tricky notices promoting users to download the attachments or click on certain download links, for example, the ones motivating users to open some photos, files, tax reports or invoices.

Needless to mention, opening such documents or clicking on such dangerous links may severely harm the system. Fictitious Adobe Flash Player update informs may result in SunnyDay virus injection. As for the cracked applications, these illegally downloaded programs may also consist of harmful codes causing SunnyDay secret installation. Lastly, injection of SunnyDay may happen by means of Trojans that covertly get injected into the system and install destructive tools without the user’s permission.

Is there any method to prevent the injection of SunnyDay ransom virus?

Despite the fact that there is no 100% guarantee to prevent your PC from getting infected, there are some pieces of recommendations we want to show with you. To start with, be very careful when you browse the web and specifically while downloading free programs. 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 contain other unwanted utilities in the bundle, so they may be harmful. Make sure that your current anti-virus and your entire operating system is always duly updated.

Obviously, downloading pirated software is unlawful and may result in vital damage to be produced your PC. Hence, stay away from downloading cracked software. You are likewise strongly encouraged to reconsider your existing security software and perhaps switch to another security solution that can render far better services of defending your Windows.

Screenshot of files with “.SunnyDay” extension added by the ransomware:

Use GridinSoft Anti-Malware to remove SunnyDay 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.

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.

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

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

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.

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.

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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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