Ransomware Research

COBRA Ransomware

COBRA is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2024, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
COBRA
First Seen
June 1, 2024

How COBRA Ransomware Works

File Encryption Patterns

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

File extensions added after encryption:

..COBRA

Ransom Note and Payment Demands

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

fileread_it_cobra.txt

Ransom message:

notes/read_it_cobra.txt
screenshot

Ransom message:

notes/3gxgkzt76.jpg

Note locations:

Desktop

Technical Indicators

Associated Executable Files

The following executable files are associated with COBRA ransomware:

  • finle.exe
  • svchost.exe
  • temp_executable.exe

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About This Analysis

This COBRA 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 COBRA.

Last updated: July 30, 2025

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