Ransomware Research
BuyUnlockCode Ransomware
BuyUnlockCode is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2016, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- BuyUnlockCode
- First Seen
- May 1, 2016
How BuyUnlockCode Ransomware Works
Targeted Files
NOSAMPLE Ransom note location -> %AppData%\SunDevPackUpdate\BUYUNLOCKCODE.txt
File Encryption Patterns
BuyUnlockCode modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
./\.encoded\.[A-Z]{2}[0-9]{7}\b/Ransom Note and Payment Demands
After encrypting files, BuyUnlockCode displays ransom notes demanding payment for file recovery:
BUYUNLOCKCODE.txtRansom message:
notes/BUYUNLOCKCODE.txt
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About This Analysis
This BuyUnlockCode 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 BuyUnlockCode.
Last updated: July 30, 2025