Ransomware Research
CoNFicker Ransomware
CoNFicker is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on April 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- CoNFicker
- First Seen
- April 1, 2017
How CoNFicker Ransomware Works
Targeted Files
Destroys files
File Encryption Patterns
CoNFicker modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..confickerRansom Note and Payment Demands
After encrypting files, CoNFicker displays ransom notes demanding payment for file recovery:
Decrypt.txtRansom message:
notes/Decrypt.txt
Note locations:
DesktopRansom message:
notes/img.jpg
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with CoNFicker ransomware:
conficker ransomwarefineched.exewinrar setup 2017.exe
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About This Analysis
This CoNFicker 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 CoNFicker.
Last updated: July 30, 2025