Ransomware Research

KRider Ransomware

KRider is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2017, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
KRider
First Seen
March 1, 2017

How KRider Ransomware Works

File Encryption Patterns

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

File extensions added after encryption:

..kr3..adr

Ransom Note and Payment Demands

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

fileDECRYPT_ME.TXT

Ransom message:

notes/DECRYPT_ME.TXT

Note locations:

Desktop

Technical Indicators

Associated Executable Files

The following executable files are associated with KRider ransomware:

  • KRider.exe
  • KRider Ransomware.exe-
  • ransomware.exe
  • Ransomware.exe
  • acma.exe
  • WindowsApplication25.exe
  • XLran1 (2).exe
  • Ransomware
  • Ransomware.bin

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About This Analysis

This KRider 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 KRider.

Last updated: October 30, 2025

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