Ransomware Research
CryPy Ransomware
CryPy 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
- CryPy
- First Seen
- September 1, 2016
How CryPy Ransomware Works
Targeted Files
Written in Python 2.7(Py2Exe) Full filenames -> CRY<random characters>.cry
File Encryption Patterns
CryPy modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..cryRansom Note and Payment Demands
After encrypting files, CryPy displays ransom notes demanding payment for file recovery:
README_FOR_DECRYPT.txtRansom message:
notes/README_FOR_DECRYPT.txt
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with CryPy ransomware:
crypy.exeCRY.exee-Statement%20BRI%20Mei%202017.pdf.exee-Statement BRI Mei 2017.pdf.exeaaadPUN.xlsm
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About This Analysis
This CryPy 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 CryPy.
Last updated: July 30, 2025