Ransomware Research
Johnnie Ransomware
Johnnie is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2017, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Random6.
Quick Facts
- Ransomware Family
- Johnnie
- First Seen
- June 1, 2017
- Known Aliases
- Random6
How Johnnie Ransomware Works
Targeted Files
Encodes filenames to base64 -> Biblio.mdb -> QmlibGlvLm1kYg==.yxhgcd
File Encryption Patterns
Johnnie modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
./\.[a-z]{6}$/Ransom Note and Payment Demands
After encrypting files, Johnnie displays ransom notes demanding payment for file recovery:
/^RESTORE-\.[a-z]{6}-FILES\.txt$/Ransom message:
notes/RESTORE-.yxhgcd-FILES.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with Johnnie ransomware:
sdFf34453.exedfdf333.exerandom.exeRANDOM.EXE
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About This Analysis
This Johnnie 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 Johnnie.
Last updated: July 30, 2025