Ransomware Research
Prometey Ransomware
Prometey is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2019, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Prometey
- First Seen
- December 1, 2019
How Prometey Ransomware Works
File Encryption Patterns
Prometey modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
./\.[a-z]{6,8}$/./\.[a-f]{4,6}$/Ransom Note and Payment Demands
After encrypting files, Prometey displays ransom notes demanding payment for file recovery:
/^CLICK_HERE-[a-f]{4,6}\.txt$/Ransom message:
notes/CLICK_HERE-eadfda.txt
Note locations:
EveryFolder/^[a-z]{6,8}-help\.txt$/Ransom message:
notes/ontmbqf-help.txt
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About This Analysis
This Prometey 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 Prometey.
Last updated: September 30, 2025
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