Ransomware Research
ZuCaNo Ransomware
ZuCaNo is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2021, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- ZuCaNo
- First Seen
- June 1, 2021
How ZuCaNo Ransomware Works
File Encryption Patterns
ZuCaNo modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..ZuCaNoRansom Note and Payment Demands
After encrypting files, ZuCaNo displays ransom notes demanding payment for file recovery:
HOW TO DECRYPT FILES.txtRansom message:
notes/HOW TO DECRYPT FILES.txt
Note locations:
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About This Analysis
This ZuCaNo 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 ZuCaNo.
Last updated: October 30, 2025
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