What is Sunjun ransomware?
Sunjun is a virus that falls under the classification of ransomware. The name is self-explanatory: ransomware is a category of viruses that generate money via ransom. So, how does Sunjun do it?
The process can be divided into three steps. During the first step, the virus encrypts all files on the victim’s computer. Encrypted files are completely inaccessible, but can be decrypted. You may think of them as “password-locked”. The second step is to rename the files. This is mainly done to increase the visibility of the attack. In our case, the virus appends some information and .Sunjun file extension to each file’s name. The third and the last step is to create a ransom note, letting the victim know what the hacker wants. In Sunjun’s case, the note is a text file called “Read.txt”.
You can read the note on the image above, but, unfortunately, it offers little in terms of information. No ransom amount is mentioned; the victim is merely instructed to send certain information to a specific e-mail address.
Thankfully, there are ways to remove Sunjun ransomware and decrypt .Sunjun files without paying the hacker. Some of them are described in the guide below.