Ransomware Research
Cyber Ransomware
Cyber is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Cyber
- First Seen
- March 1, 2023
How Cyber Ransomware Works
Targeted Files
Looks like test sample (test@test.com in the ransom note) Marker ? 01 02 03 04 05 06 07 08
File Encryption Patterns
Cyber modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..CyberRansom Note and Payment Demands
After encrypting files, Cyber displays ransom notes demanding payment for file recovery:
read_it.txtRansom message:
notes/read_it.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with Cyber ransomware:
Taskmng.exeCrack.exetaskmng.exe
Elastio Can Help You
Don't let Cyber ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This Cyber 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 Cyber.
Last updated: July 30, 2025