Ransomware Research
TheDMR Ransomware
TheDMR is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2019, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: DMR64, Clown, NotFound, Clown+, Valley, ALVIN.
Quick Facts
- Ransomware Family
- TheDMR
- First Seen
- December 1, 2019
- Known Aliases
- DMR64ClownNotFoundClown+ValleyALVIN
How TheDMR Ransomware Works
File Encryption Patterns
TheDMR modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..DMR64..notfound..clown+..clown..Valley..ALVINRansom Note and Payment Demands
After encrypting files, TheDMR displays ransom notes demanding payment for file recovery:
!!! READ THIS !!!.htaRansom message:
notes/!!! READ THIS !!!.hta
Note locations:
EveryFolderHOW TO RECOVER ENCRYPTED FILES.txtRansom message:
notes/HOW TO RECOVER ENCRYPTED FILES.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with TheDMR ransomware:
TheDMR.binWindows Explorer.exeNotFound.exeSynaptics.exeHeeeh98.exeHeeeh98.exe (Synaptics.exe)
Elastio Can Help You
Don't let TheDMR ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This TheDMR 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 TheDMR.
Last updated: October 30, 2025
Recent Ransomware
Explore other threats in our database