Ransomware Research
Dr. Fucker Ransomware
Dr. Fucker is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2016, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Dr. Fucker
- First Seen
- September 1, 2016
How Dr. Fucker Ransomware Works
Targeted Files
Encrypts only *.mdf, *.sql files
File Encryption Patterns
Dr. Fucker modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..iloveworldRansom Note and Payment Demands
After encrypting files, Dr. Fucker displays ransom notes demanding payment for file recovery:
/^PLEASE_READ_FOR_DECRYPT_FILES_[\d]\.html$/Ransom message:
notes/PLEASE_READ_FOR_DECRYPT_FILES_0.html
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with Dr. Fucker ransomware:
gotohelldr.exebarbinor2.exebarbinor2.exe.old
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About This Analysis
This Dr. Fucker 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 Dr. Fucker.
Last updated: July 30, 2025