Ransomware Research
Alfa Ransomware
Alfa is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2016, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Alfa
- First Seen
- June 1, 2016
How Alfa Ransomware Works
Targeted Files
NOSAMPLE Full extension -> [10_random_chars].bin
File Encryption Patterns
Alfa modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..binRansom Note and Payment Demands
After encrypting files, Alfa displays ransom notes demanding payment for file recovery:
README HOW TO DECRYPT YOUR FILES.HTMLRansom message:
notes/README HOW TO DECRYPT YOUR FILES.HTML.txt
README HOW TO DECRYPT YOUR FILES.TXTRansom message:
notes/README HOW TO DECRYPT YOUR FILES.HTML.txt
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About This Analysis
This Alfa 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 Alfa.
Last updated: July 30, 2025