Ransomware Research
USBR Ransomware
USBR is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2017, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: HiddenTear Offline.
Quick Facts
- Ransomware Family
- USBR
- First Seen
- August 1, 2017
- Known Aliases
- HiddenTear Offline
How USBR Ransomware Works
File Encryption Patterns
USBR modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..salepute..lockedRansom Note and Payment Demands
After encrypting files, USBR displays ransom notes demanding payment for file recovery:
READ_IT.txtRansom message:
notes/READ_IT.txt
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with USBR ransomware:
hidden-tear-offline.exeUSBR.exe
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About This Analysis
This USBR 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 USBR.
Last updated: July 30, 2025