Ransomware Research
MEMZ Ransomware
MEMZ is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2021, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- MEMZ
- First Seen
- September 1, 2021
How MEMZ Ransomware Works
File Encryption Patterns
MEMZ modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..MEMZRansom Note and Payment Demands
After encrypting files, MEMZ displays ransom notes demanding payment for file recovery:
HOW TO DECRYPT FILES.txtRansom message:
notes/HOW TO DECRYPT FILES.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with MEMZ ransomware:
4h57c06iXU2QYUc.exe
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About This Analysis
This MEMZ 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 MEMZ.
Last updated: September 30, 2025
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