Ransomware Research
UnblockUPC Ransomware
UnblockUPC is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2016, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- UnblockUPC
- First Seen
- September 1, 2016
How UnblockUPC Ransomware Works
File Encryption Patterns
UnblockUPC modifies encrypted files using specific patterns to mark them as encrypted:
Prefixes added to encrypted files:
encRansom Note and Payment Demands
After encrypting files, UnblockUPC displays ransom notes demanding payment for file recovery:
Files encrypted.txtRansom message:
notes/Files encrypted.txt
Note locations:
EveryFolderRansom message:
notes/note.txt
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About This Analysis
This UnblockUPC 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 UnblockUPC.
Last updated: September 30, 2025
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