Ransomware Research
Cyanus Ransomware
Cyanus is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2026, this ransomware has been actively targeting systems worldwide.
Quick facts
- Ransomware Family
- Cyanus
- First Seen
- January 1, 2026
How Cyanus ransomware works
File modification behavior
Cyanus updates file modification timestamps after encryption.
File encryption patterns
Cyanus modifies encrypted files using specific patterns to mark them as encrypted:
Extensions added after encryption
- .cornflower
- .bleuet
Technical indicators
Associated executable files
The following executable files are associated with Cyanus ransomware:
- cyanus.exe
About this analysis
This Cyanus ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like Cyanus.
Detection coverage
Elastio detects Cyanus inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Cyanus across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a hunt against your recovery points to confirm.