Ransomware Research
ShivaGood Ransomware
ShivaGood is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2018, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Mimicry.
Quick Facts
- Ransomware Family
- ShivaGood
- First Seen
- August 1, 2018
- Known Aliases
- Mimicry
How ShivaGood Ransomware Works
File Encryption Patterns
ShivaGood modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..goodRansom Note and Payment Demands
After encrypting files, ShivaGood displays ransom notes demanding payment for file recovery:
HOW_TO_RECOVER_FILES.txtRansom message:
notes/HOW_TO_RECOVER_FILES.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with ShivaGood ransomware:
frost.exefrost.binout
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About This Analysis
This ShivaGood 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 ShivaGood.
Last updated: July 30, 2025