Ransomware Research

KREMLIN Ransomware

KREMLIN is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2025, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
KREMLIN
First Seen
August 1, 2025

How KREMLIN Ransomware Works

Targeted Files

f1f40dc979772ec4d6aa92094cd745a5ca43dc923ac81f396d4dc65201c115ef -> zip

File Encryption Patterns

KREMLIN modifies encrypted files using specific patterns to mark them as encrypted:

File extensions added after encryption:

..KREMLIN

Ransom Note and Payment Demands

After encrypting files, KREMLIN displays ransom notes demanding payment for file recovery:

fileREADME.txt

Ransom message:

notes/README.txt

Note locations:

EveryFolder

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About This Analysis

This KREMLIN 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 KREMLIN.

Last updated: September 30, 2025

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