Ransomware Research
Sapphire-LAG Ransomware
Sapphire-LAG is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2020, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Sapphire, LAG.
Quick Facts
- Ransomware Family
- Sapphire-LAG
- First Seen
- May 1, 2020
- Known Aliases
- SapphireLAG
How Sapphire-LAG Ransomware Works
File Encryption Patterns
Sapphire-LAG modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..VIVELAGRansom Note and Payment Demands
After encrypting files, Sapphire-LAG displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
OnceOnCompletionTechnical Indicators
Associated Executable Files
The following executable files are associated with Sapphire-LAG ransomware:
GachaLife_Update.exe
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About This Analysis
This Sapphire-LAG 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 Sapphire-LAG.
Last updated: July 30, 2025