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
Targeted Files
44d49a8967ca32a2438f90f6877000675c580d35e151e53e32379f50943a470b -> check for exename (should be host64.exe) Encrypted_%random string%.BlackRuby2 Encrypted_xxxxx.BlackRubyLight Regex ^Encrypted_[A-Za-z0-9]{32,48}\.BlackRuby2$
File Encryption Patterns
BlackRuby-2 modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..BlackRuby2..BlackRubyLightPrefixes 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.txtRansom message:
notes/HOW-TO-DECRYPT-FILES.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with BlackRuby-2 ransomware:
Windows Defender.exeblackruby litehost64.exe
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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: July 30, 2025