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

Targeted Files

48c675aedf400f4bdc0ce4c52cc572f9a75a4848f938dc377adc6f2056b6ebf9 -> Contains check for Korean lang be6c26663bce5c57332fa2a24e96a9328280648aeefbfbdac4abe56d7d38312e -> Contains check for Korean lang

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:

file/^CLICK_HERE-[a-f]{4,6}\.txt$/

Ransom message:

notes/CLICK_HERE-eadfda.txt

Note locations:

EveryFolder
file/^[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: July 30, 2025