Ransomware Research
HappyCrypter Ransomware
HappyCrypter is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- HappyCrypter
- First Seen
- September 1, 2017
How HappyCrypter Ransomware Works
Ransom Note and Payment Demands
After encrypting files, HappyCrypter displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
OnceOnCompletionRansom message:
notes/Wallpaper.jpg
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with HappyCrypter ransomware:
HappyCrypter.exe
Elastio Can Help You
Don't let HappyCrypter ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This HappyCrypter 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 HappyCrypter.
Last updated: July 30, 2025