Ransomware Research

RagnarLocker Ransomware

RagnarLocker is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2020, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: RagnarLocker 2.0, RagnarLocker Doxware, RagnarLocker NextGen.

Quick facts

Ransomware Family
RagnarLocker
First Seen
February 1, 2020
Known Aliases
  • RagnarLocker 2.0
  • RagnarLocker Doxware
  • RagnarLocker NextGen

How RagnarLocker ransomware works

File modification behavior

RagnarLocker updates file modification timestamps after encryption.

File encryption patterns

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

Extensions added after encryption
  • ./\.ragnar_[A-F0-9]{8}$/
  • ./\.__r4gN4r__[A-F0-9]{8}$/

Ransom note and payment demands

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

file/^RGNR_[A-F0-9]{8}\.txt$/
notes/RGNR_B9355F59.txt

Location: EveryFolder

file/^!!!_READ_ME_[A-F0-9]{8}_!!!\.txt$/
notes/!!!_READ_ME_623A4A83_!!!.txt

Location: EveryFolder

Technical indicators

Associated executable files

The following executable files are associated with RagnarLocker ransomware:

  • uu94ctvp4f6TPpgoPS.exe
  • o0j5mWgpcow7k2uQj05egTmZsPm.exe
  • delq99j61FkgZTWpMioun7.exe
  • VSERV.EXE
  • Ezb6GQGXGXYUaFY.exe
  • Ragnar.exe
  • true.bin
  • 9yeblsbyyEUb7wRn1.exe
  • FRSQK5LCWFef60L.exe
  • VSD.EXE
  • 001200000005379C_winscp.exe_sample.exe
  • Sofreg.exe
  • CWT_company_ragnar_locker.exe
  • ragnar.exe
  • ragnarlocker.exe
  • sasas.bin.exe

About this analysis

This RagnarLocker ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like RagnarLocker.

Last updated: August 12, 2026

Detection coverage

Elastio detects RagnarLocker inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify RagnarLocker across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a hunt against your recovery points to confirm.