Sun Virus (.sun Files) – How to Remove It From Your PC

Sun Virus (.sun Files) – How to Remove It From Your PC

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.sun Virus virus remove

The .sun virus is a ransomware that is currently set against target end users on a global scale. There is no information available about the hacking group behind it. It is believed to be a new iteration of the famous ransomware family. This is one of the reasons why we believe that the hackers are experienced.

Once the .sun virus has started it will execute its built-in sequence of dangerous commands. Depending on local conditions or the specific hacker instructions various actions will take place. The file encryption will begin after them — the encrypting component will use a built-in list of target file type extensions. In the end the victim files will be renamed with the .sun extension.

Threat Summary

NameSun virus
TypeRansomware, Cryptovirus
Short DescriptionThe ransomware encrypts files on your computer machine and demands a ransom to be paid to allegedly restore them.
SymptomsThe ransomware will blackmail the victims to pay them a decryption fee. Sensitive user data may be encrypted by the ransomware code.
Distribution MethodSpam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by Sun virus


Malware Removal Tool

User ExperienceJoin Our Forum to Discuss Sun virus.
Data Recovery ToolWindows 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.

.sun Virus – Spread and Impact

The .sun virus is a dangerous new ransomware release which doesn’t appear to originate from any of the famous malware families. However active campaigns have been detected carrying it which shows that the criminal group behind it is actively attempting to affect target users. Some of the most useful techniques include the sending out of email messages that are designed to imitate legitimate notifications coming from companies or services. They will include the virus carrier files directly or they can be linked in the contents. The other popular technique is the creation of hacker-controlled sites which are hosted on similar sounding domain names and even self-signed security certificates.

There are dangerous files which can be used to lead to the virus installation. Some of them can be dangerous documents which include malicious macros. When they are opened they will ask the victims to enable the scripts. If this is done the malware will be deployed by the document. The alternative is to spread dangerous application installers which are made by taking the legitimate setup bundles and adding in the necessary virus code. Alternatively the other option is the creation of a browser hijacker, a dangerous extension which can be made compatible with all modern web browsers. They are frequently posted on the relevant plugin stores and appear as posted by trusted and safe developers. The hackers can even use fake customer reviews in order to boost the reputation of the fake extensions.

All of the dangerous files can be uploaded to file-sharing networks (BitTorrent) or to social networks with fake or hacked profiles.

The .sun virus can exhibit typical malware modules when launched on the affected machines. Typical threats of this type will launch some of the most widely used ones. This includes the execution of a data retrieval component. In most cases it will extract two main types of data:

  • Personal Information — The module will acquire information that can expose the identity of the victims by looking out for strings related to their identity — a person’s name, address, phone number and stored credentials. The most common consequences are blackmail, financial abuse and identity theft.
  • Machine Metrics — This module can create a report of all installed hardware parts and use it to generate an unique ID for each infected machine.

The next components that can be run by the .sun virus deal mostly with system changes. This means that the threat can be installed as a persistent ransomware meaning that it will start automatically as soon as the computer is powered on. This will block access to the recovery boot options and make it impossible to follow most manual user recovery guides. In this case the victims will need to use a professional-grade anti-malware solution. To make recovery more difficult the .sun virus can also delete sensitive data including backups, restore points and operating system files.

The reconfiguration of the system can continue even further by going to the Windows Registry where the system can edit out existing values or create new ones which are specific for the virus files. The consequences of this act can be data loss, performance issues and unexpected errors.

In the end .sun virus will launch its respective file processing will be run. This will process the target user data with a strong cipher according to a built-in list of file types: archives, backups, documents, applications, multimedia files and etc. In the end the .sun extension and the victims will be blackmailed into paying the hackers a decryption fee.

.sun Virus – What Does It Do?

.sun Virus could spread its infection in various ways. A payload dropper which initiates the malicious script for this ransomware is being spread around the Internet. .sun Virus might also distribute its payload file on social media and file-sharing services. Freeware which is found on the Web can be presented as helpful also be hiding the malicious script for the cryptovirus. Read the tips for ransomware prevention from our forum.

.sun Virus is a cryptovirus that encrypts your files and shows a window with instructions on your computer screen. The extortionists want you to pay a ransom for the alleged restoration of your files. The main engine could make entries in the Windows Registry to achieve persistence, and interfere with processes in Windows.

The .sun Virus is a crypto virus programmed to encrypt user data. As soon as all modules have finished running in their prescribed order the lockscreen will launch an application frame which will prevent the users from interacting with their computers. It will display the ransomware note to the victims.

You should NOT under any circumstances pay any ransom sum. Your files may not get recovered, and nobody could give you a guarantee for that.

The .sun Virus cryptovirus could be set to erase all the Shadow Volume Copies from the Windows operating system with the help of the following command:

→vssadmin.exe delete shadows /all /Quiet

If your computer device was infected with this ransomware and your files are locked, read on through to find out how you could potentially restore your files back to normal.

Remove .sun Virus

If your computer system got infected with the .sun Files ransomware virus, you should have a bit of experience in removing malware. You should get rid of this ransomware as quickly as possible before it can have the chance to spread further and infect other computers. You should remove the ransomware and follow the step-by-step instructions guide provided below.


Martin Beltov

Martin graduated with a degree in Publishing from Sofia University. As a cyber security enthusiast he enjoys writing about the latest threats and mechanisms of intrusion.

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