Ransomware Research
HDMR Ransomware
HDMR is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2019, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: HDMR, GO-SPORT.
Quick Facts
- Ransomware Family
- HDMR
- First Seen
- October 1, 2019
- Known Aliases
- HDMRGO-SPORT
How HDMR Ransomware Works
File Encryption Patterns
HDMR modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..hdmrRansom Note and Payment Demands
After encrypting files, HDMR displays ransom notes demanding payment for file recovery:
ReadMeAndContact.txtRansom message:
notes/ReadMeAndContact.txt
Note locations:
RootDiscsTechnical Indicators
Associated Executable Files
The following executable files are associated with HDMR ransomware:
dllhost.exe
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About This Analysis
This HDMR 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 HDMR.
Last updated: July 30, 2025