Ransomware Research
Shiel Ransomware
Shiel is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2024, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Shiel
- First Seen
- January 1, 2024
How Shiel Ransomware Works
Targeted Files
Full extension -> .id-C63F241F.[00223@45312].shiel
File Encryption Patterns
Shiel modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..shielRansom Note and Payment Demands
After encrypting files, Shiel displays ransom notes demanding payment for file recovery:
README!.txtRansom message:
notes/README!.txt
Note locations:
RootDiscsDesktopInfo.htaRansom message:
notes/Info.hta
Note locations:
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About This Analysis
This Shiel 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 Shiel.
Last updated: July 30, 2025