Ransomware Research
JohnyCryptor Ransomware
JohnyCryptor is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2016, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- JohnyCryptor
- First Seen
- January 1, 2016
How JohnyCryptor Ransomware Works
Targeted Files
Full extension -> .id-[ID_victim]-johnycryptor@aol.com.xtbl .id-7004904578921790-johnycryptor@aol
File Encryption Patterns
JohnyCryptor modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
.johnycryptor@aol.com.xtbl.johnycryptor@aolRansom Note and Payment Demands
After encrypting files, JohnyCryptor displays ransom notes demanding payment for file recovery:
How to decrypt your files.txtRansom message:
notes/How to decrypt your files.txt
Ransom message:
notes/note.txt
Ransom message:
notes/52N6FD42-3SKE-818D-9865-3YAH5897396Y.png
Note locations:
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About This Analysis
This JohnyCryptor 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 JohnyCryptor.
Last updated: July 30, 2025