Serpent Danish Ransomware
Serpent Danish is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2017, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Serpent 2017.
Quick facts
How Serpent Danish ransomware works
File encryption patterns
Serpent Danish modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, Serpent Danish displays ransom notes demanding payment for file recovery:
notes/HOW_TO_DECRYPT_YOUR_FILES_Hg5.txt
Technical indicators
Associated executable files
The following executable files are associated with Serpent Danish ransomware:
- software.exe
- iutyfghjkoiuytf.exe
- software.bin
- Sperment ransomware.bin
- Sperment Ransomware.exe
- Sperment ransomware.exe
- puttyx86.exe
- 286d.exe
- 1286d.exe
- ser.exe
About this analysis
This Serpent Danish 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 Serpent Danish.
Last updated: December 30, 2025
Elastio detects Serpent Danish inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Serpent Danish across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a scan against your recovery points to confirm.
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