Ransomware Research
Kolobo Ransomware
Kolobo is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2014, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Kolobocheg.
Quick Facts
- Ransomware Family
- Kolobo
- First Seen
- March 1, 2014
- Known Aliases
- Kolobocheg
How Kolobo Ransomware Works
Targeted Files
NOSAMPLE
File Encryption Patterns
Kolobo modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..kolobocheg@aol.com_Ransom Note and Payment Demands
After encrypting files, Kolobo displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
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About This Analysis
This Kolobo 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 Kolobo.
Last updated: July 30, 2025