Ransomware Research
Kuiper Ransomware
Kuiper is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Kuiper
- First Seen
- August 1, 2023
How Kuiper Ransomware Works
Targeted Files
Very long encryption process
File Encryption Patterns
Kuiper modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..kuiperRansom Note and Payment Demands
After encrypting files, Kuiper displays ransom notes demanding payment for file recovery:
README_TO_DECRYPT.txtRansom message:
notes/README_TO_DECRYPT.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with Kuiper ransomware:
dns.malzdns.exe
Elastio Can Help You
Don't let Kuiper ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This Kuiper ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like Kuiper.
Last updated: July 30, 2025