Ransomware Research
WinCrypto Ransomware
WinCrypto is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2021, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- WinCrypto
- First Seen
- December 1, 2021
How WinCrypto Ransomware Works
Targeted Files
sample will not work, it sends info to http://a60b5756ac93690dd70336804179ce42.ml which is "dead" Sample is heavily obfuscated but drops clean payload
File Encryption Patterns
WinCrypto modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..wincryptoRansom Note and Payment Demands
After encrypting files, WinCrypto displays ransom notes demanding payment for file recovery:
README WINCRYPTO.txtRansom message:
notes/README WINCRYPTO.txt
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with WinCrypto ransomware:
RuntimeBroker.exeWinCrypto Ransomware.exeruntimebroker.exe
Elastio Can Help You
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About This Analysis
This WinCrypto 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 WinCrypto.
Last updated: July 30, 2025