Ransomware Research
Optimus Ransomware
Optimus is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2025, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Optimus
- First Seen
- March 1, 2025
How Optimus Ransomware Works
File Encryption Patterns
Optimus modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
./\.[0-9a-z]{4}$/Ransom Note and Payment Demands
After encrypting files, Optimus displays ransom notes demanding payment for file recovery:
OPTIMUS_readme.txtRansom message:
notes/OPTIMUS_readme.txt
Note locations:
EveryFolderRansom message:
notes/muya1m5ts.png
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with Optimus ransomware:
Optimus.exeServerice.Host.local.exe
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About This Analysis
This Optimus 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 Optimus.
Last updated: July 30, 2025