Ransomware Research
FiveHands Ransomware
FiveHands is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2021, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: FiveHandsCrypt, HelloKitty-FiveHands.
Quick Facts
- Ransomware Family
- FiveHands
- First Seen
- January 1, 2021
- Known Aliases
- FiveHandsCryptHelloKitty-FiveHands
How FiveHands Ransomware Works
Targeted Files
Encrypts some parts (blocks) of the files
File Encryption Patterns
FiveHands modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..cryptRansom Note and Payment Demands
After encrypting files, FiveHands displays ransom notes demanding payment for file recovery:
DECRYPT_NOTE.txtRansom message:
notes/DECRYPT_NOTE.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with FiveHands ransomware:
ionline.exevirus277155.exe
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About This Analysis
This FiveHands 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 FiveHands.
Last updated: July 30, 2025