Ransomware Research
Contacto Ransomware
Contacto is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2025, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Contacto
- First Seen
- January 1, 2025
How Contacto Ransomware Works
File Encryption Patterns
Contacto modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..ContactoRansom Note and Payment Demands
After encrypting files, Contacto displays ransom notes demanding payment for file recovery:
Contacto_Help.txtRansom message:
notes/Contacto_Help.txt
Note locations:
EveryFolderElastio Can Help You
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About This Analysis
This Contacto 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 Contacto.
Last updated: July 30, 2025