Dark 101 Ransomware
Dark 101 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2025, this ransomware has been actively targeting systems worldwide.
Quick facts
How Dark 101 ransomware works
File encryption patterns
Dark 101 modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, Dark 101 displays ransom notes demanding payment for file recovery:
notes/Dark101_read_it.txt
notes/read_it.txt
notes/umfji3dl7.jpg
Technical indicators
Associated executable files
The following executable files are associated with Dark 101 ransomware:
- adobe_photoshop2025.exe
About this analysis
This Dark 101 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 Dark 101.
Last updated: December 30, 2025
Elastio detects Dark 101 inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Dark 101 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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