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title
Zsszyy
Registration date
2025-09-23
type
Ransomware
Treatment method
Diagnosis/treatment is possible with WhiteDefender.
change extension
.sewed
ransom note

What is Zsszyy (지쓰지) ransomware?
WhiteDefender, a research and development company focused on ransomware security, analyzed the malware, which is called Zsszyy ransomware.
Zsszyy (지쓰지) is designed to encrypt files and change their extensions, rendering them unusable. 

The Zsszyy ransomware not only encrypts files, but also appends the extension (.Zsszyy). For example, a file named "file.jpg" will be renamed to "file.jpg.zsszyy," and "2.xlsx" will be renamed to "2.xlsx.zsszyy." It also creates a ransom note (Zsszyy.txt) containing a ransom note containing its demands.


A ransom note is a note that contains instructions that you must follow.

 

Ransomware name Zsszyy ransomware
Changed extension filename.extension.{36-digit UUID].zsszyy
Ransom note (payment information file) README.TXT
characteristic After encrypting all file data, money is demanded.
MD5 ad793ac178ca43465c3c1e9fcc50bcbc
SHA-1 6baa1e2fbb4044396e18983dac12ddc0aff37481
SHA-256 4874c4487a75391b37d04e278512c42eb16d7c621421406b60aba55fbc27d0b9
Basic protection methods The most basic and effective way to protect yourself
is to use a reliable anti-ransomware program.
Keep your security software up to date.

 

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