Ransomware Research
Sophos Ransomware
Sophos is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Sophos
- First Seen
- July 1, 2023
How Sophos Ransomware Works
File Encryption Patterns
Sophos modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..sophosRansom Note and Payment Demands
After encrypting files, Sophos displays ransom notes demanding payment for file recovery:
information.htaRansom message:
notes/information.hta
Note locations:
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About This Analysis
This Sophos 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 Sophos.
Last updated: July 30, 2025