Ransomware Research

DCRTR Ransomware

DCRTR is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2018, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
DCRTR
First Seen
February 1, 2018

How DCRTR Ransomware Works

Targeted Files

Full extension -> [decryptor@cock.li].dcrtr

File Encryption Patterns

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

File extensions added after encryption:

..dcrtr..cryptes..java..crypt..parrot..coka

Ransom Note and Payment Demands

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

fileReadMe_Decryptor.txt

Ransom message:

notes/ReadMe_Decryptor.txt

Note locations:

EveryFolder
fileHOW TO DECRYPT ALL MY FILES.txt

Ransom message:

notes/HOW TO DECRYPT ALL MY FILES.txt

Note locations:

EveryFolder
fileHOW TO DECRYPT FILES.txt

Ransom message:

notes/HOW TO DECRYPT FILES.txt

Note locations:

EveryFolder
fileinfo.hta

Ransom message:

notes/info.hta

Note locations:

EveryFolder

Technical Indicators

Associated Executable Files

The following executable files are associated with DCRTR ransomware:

  • msshost.exe
  • reboot.exe
  • Reglstry.exe
  • Marvel.exe
  • gf.exe
  • Dcrtc.bin.gz
  • marvel.exe
  • MARVEL.EXE

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About This Analysis

This DCRTR 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 DCRTR.

Last updated: July 30, 2025

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