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
How UnblockUPC ransomware works
File encryption patterns
UnblockUPC modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, UnblockUPC displays ransom notes demanding payment for file recovery:
notes/Files encrypted.txt
notes/note.txt
About this analysis
This UnblockUPC ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like UnblockUPC.
Last updated: December 30, 2025
Elastio detects UnblockUPC inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify UnblockUPC across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a scan against your recovery points to confirm.
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