NAS Data Compromiser Ransomware
NAS Data Compromiser is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2020, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: NAS_Data_Compromiser.
Quick facts
How NAS Data Compromiser ransomware works
File encryption patterns
NAS Data Compromiser modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, NAS Data Compromiser displays ransom notes demanding payment for file recovery:
notes/READ ME.txt
About this analysis
This NAS Data Compromiser 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 NAS Data Compromiser.
Last updated: December 30, 2025
Elastio detects NAS Data Compromiser inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify NAS Data Compromiser 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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