Ransomware Research
Encryptss77 Ransomware
Encryptss77 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2016, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: SFX Monster.
Quick Facts
- Ransomware Family
- Encryptss77
- First Seen
- August 1, 2016
- Known Aliases
- SFX Monster
How Encryptss77 Ransomware Works
Targeted Files
NOSAMPLE
File Encryption Patterns
Encryptss77 modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..exeRansom Note and Payment Demands
After encrypting files, Encryptss77 displays ransom notes demanding payment for file recovery:
КАК РАСШИФРОВАТЬ ФАЙЛЫ.txtRansom message:
notes/КАК РАСШИФРОВАТЬ ФАЙЛЫ.txt
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About This Analysis
This Encryptss77 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 Encryptss77.
Last updated: July 30, 2025