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Ransomware Research
BlackRuby-2 Ransomware
BlackRuby-2 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2018, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- BlackRuby-2
- First Seen
- March 1, 2018
How BlackRuby-2 Ransomware Works
File Encryption Patterns
BlackRuby-2 modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..BlackRuby2
..BlackRubyLight
Prefixes added to encrypted files:
Encrypted_
Ransom Note and Payment Demands
After encrypting files, BlackRuby-2 displays ransom notes demanding payment for file recovery:
HOW-TO-DECRYPT-FILES.txt
Ransom message:
notes/HOW-TO-DECRYPT-FILES.txt
Note locations:
EveryFolder
Technical Indicators
Associated Executable Files
The following executable files are associated with BlackRuby-2 ransomware:
Windows Defender.exe
blackruby lite
host64.exe
Elastio Can Help You
Don't let BlackRuby-2 ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This BlackRuby-2 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 BlackRuby-2.
Last updated: September 30, 2025
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