SUNJUN Ransomware 🔐 (.SUNJUN File) — Removal Guide

The Sunjun virus falls under the VoidCrypt ransomware family. Ransomware of this type encrypts all the data on your PC (photos, documents, excel sheets, music, videos, etc) and adds its specific extension to every file, creating the Read.txt text files in every folder containing encrypted files.

What is Sunjun virus?

☝️ A strictly accurate designation for the Sunjun would be “a VoidCrypt family ransomware-type malicious agent”.

The renaming will be executed according to the following pattern: [victim_ID](contact_email).Sunjun. In the process of encryption, a file entitled, for example, “report.docx” will be altered to “report.docx.[CW-AR9583604271]([email protected]).Sunjun”.

In each directory containing the encrypted files, a Read.txt text file will be found. It is a ransom money memo. It contains information about the ways of paying the ransom and some other information. The ransom note usually contains instructions on how to buy the decryption tool from the racketeers. You can get this tool after contacting [email protected] by email. That is it.

Sunjun abstract:

The Read.txt document coming in package with the Sunjun ransomware provides the following dispiriting information:

All your files have been encrypted. If you want to restore them, write us to the e-mail:[email protected]
inCase of no answer :[email protected]

Write this ID in the title of your message -

send RSAKEY file stored in C:/ProgramData  or other drives in email

Do not rename encrypted files.
Do not try to decrypt your data using third-party software and sites. It may cause permanent data loss.
The decryption of your files with the help of third parties may cause increased prices (they add their fee to our), or you can become a victim of a scam.

In the picture below, you can see what a folder with files encrypted by the Sunjun looks like. Each filename has the “.Sunjun” extension added to it.

How did my computer get infected with Sunjun ransomware?

There are many possible ways of ransomware injection.

Nowadays, there are three most popular methods for hackers to have the Sunjun virus acting in your digital environment. These are email spam, Trojan introduction and peer-to-peer networks.

If you open your inbox and see emails that look like familiar notifications from utility services companies, delivery agencies like FedEx, web-access providers, and whatnot, but whose “from” field is strange to you, beware of opening those letters. They are most likely to have a malware file attached to them. Thus it is even more dangerous to open any attachments that come with letters like these.

As for the peer-to-peer file transfer protocols like torrent trackers or eMule, the threat is that they are even more trust-based than the rest of the Internet. You can never guess what you download until you get it. Our suggestion is that you use trustworthy resources. Also, it is a good idea to scan the folder containing the downloaded items with the anti-malware utility as soon as the downloading is done.

How to remove the Sunjun virus?

It is crucial to note that besides encrypting your files, the Sunjun virus will most likely deploy the Azorult Spyware on your PC to get access to credentials to various accounts (including cryptocurrency wallets). The mentioned spyware³ can extract your credentials from your browser’s auto-filling data.

Often tamperers would decrypt few of your files so you know that they do have the decryption tool. Since Sunjun virus is a relatively new ransomware, anti-malware developers have not yet found a way to undo its work. Nevertheless, the decryption tools are constantly updated, so the solution may soon arrive.

Of course, if the evildoers do the job of encrypting victim’s essential files, the hopeless person will probably comply with their demands. However, paying to racketeers gives no guarantee that you’re getting your blocked information back. It is still risky. After receiving the ransom, the racketeers may send a wrong decryption key to the victim. There were reports of criminals simply vanishing after getting the money without even bothering to reply.

The best safety measure against ransomware is to have a system restore point or the copies of your critical files in the cloud disk or at least on an external storage. Obviously, that might be insufficient. The most important thing could be that file you were working on when it all happened. But at least it is something. It is also wise to scan your drives with the anti-malware utility after the system is rolled back.

There are other ransomware products, besides Sunjun, that work similarly. For instance, Mppn, Uyit, Maos, and some others. The two main differences between them and the Sunjun are the ransom amount and the encoding method. The rest is the same: documents become blocked, their extensions changed, ransom notes emerge in each folder containing encrypted files.

Some lucky victims were able to decrypt the arrested files with the aid of the free tools provided by anti-ransomware specialists. Sometimes the racketeers mistakenly send the decryption key to the victims in the ransom readme. Such an epic fail allows the injured part to restore the files. But of course, one should never expect such a chance. Make no mistake, ransomware is a criminals’ instrument to pull the money out of their victims.

How do I avert ransomware injection?

Sunjun ransomware doesn’t have a superpower, neither does any similar malware.

You can protect your PC from ransomware attack within several easy steps:

• Never open any emails from unknown senders with strange addresses, or with content that has nothing to do with something you are waiting for (how can you win in a lottery without participating in it?). If the email subject is more or less something you are waiting for, check all elements of the suspicious email with caution. A fake email will surely contain mistakes.
• Never use cracked or unknown software. Trojans are often spreaded as a part of cracked products, most likely under the guise of “patch” which prevents the license check. But potentially dangerous programs are very hard to tell from reliable ones, as trojans sometimes have the functionality you need. You can try searching for information on this software product on the anti-malware forums, but the best solution is not to use such software.

Reasons why I would recommend GridinSoft⁴

Download Removal Tool.

Run the setup file.

Press “Install” button.

Once installed, Anti-Malware will automatically run.

Wait for the Anti-Malware scan to complete.

Click on “Clean Now”.

FAQ

🤔 Can I somehow access “.Sunjun” files?

There’s no way to do it, unless the files “.Sunjun” files are decrypted.

🤔 The encrypted files are very important to me. How can I decrypt them quickly?

Hopefully, you have made a copy of those important files. Otherwise, you might try to employ System Restore. The only question is whether you have saved any Restore Points that would be helpful now. There are other ways to beat ransomware, but they take time.

🤔 What to do if the Sunjun virus has blocked my PC and I can’t get the activation key.

🤔 And what should I do now?

Some of the encrypted data can be located elsewhere.

• If you sent or received your critical files via email, you could still download them from your online mail server.
• You might have shared photographs or videos with your friends or family members. Simply ask them to give those images back to you.
• If you have initially got any of your files from the Internet, you can try doing it again.
• Your messengers, social networks pages, and cloud drives might have all those files as well.
• Maybe you still have the needed files on your old PC, a portable device, cellphone, external storage, etc.

HINT: You can employ file recovery programs⁶ to get your lost data back since ransomware encrypts the copies of your files, deleting the authentic ones. In the video below, you can learn how to recover your files with PhotoRec, but be advised: you can do it only after you kill the ransomware itself with an anti-malware program.

Also, you can contact the following official fraud and scam sites to report this attack:

• In the United States: On Guard Online;
• In Canada: Canadian Anti-Fraud Centre;
• In the United Kingdom: Action Fraud;
• In Australia: SCAMwatch;
• In New Zealand: Consumer Affairs Scams;
• In France: Agence nationale de la sécurité des systèmes d’information;
• In Germany: Bundesamt für Sicherheit in der Informationstechnik;
• In Ireland: An Garda Síochána;

To report the attack, you can contact local executive boards. For instance, if you live in USA, you can have a talk with FBI Local field office, IC3 or Secret Service.

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