Ransomware Research
Sifreli 2019 Ransomware
Sifreli 2019 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2019, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Sifreli 2019
- First Seen
- October 1, 2019
How Sifreli 2019 Ransomware Works
Targeted Files
NOSAMPLE
File Encryption Patterns
Sifreli 2019 modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..SIFRELI..SIFRELI_DOSYARansom Note and Payment Demands
After encrypting files, Sifreli 2019 displays ransom notes demanding payment for file recovery:
fidye-uyari.txtRansom message:
notes/fidye-uyari.txt
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About This Analysis
This Sifreli 2019 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 Sifreli 2019.
Last updated: July 30, 2025