Ransomware Research
OCEANS Ransomware
OCEANS is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2024, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- OCEANS
- First Seen
- May 1, 2024
How OCEANS Ransomware Works
File Encryption Patterns
OCEANS modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
./\.[a-z0-9]{4}$/
Ransom Note and Payment Demands
After encrypting files, OCEANS displays ransom notes demanding payment for file recovery:
OPEN_THIS.txt
Ransom message:
notes/OPEN_THIS.txt
Note locations:
EveryFolder
Ransom message:
notes/yu76i01ds.jpg
Note locations:
Desktop
Technical Indicators
Associated Executable Files
The following executable files are associated with OCEANS ransomware:
UPDATE~1.EXE
Update 1.28.exe
Elastio Can Help You
Don't let OCEANS ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This OCEANS 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 OCEANS.
Last updated: July 30, 2025