B2DR Ransomware
B2DR is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2018, this ransomware has been actively targeting systems worldwide.
Quick facts
How B2DR ransomware works
File encryption patterns
B2DR modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, B2DR displays ransom notes demanding payment for file recovery:
notes/readme.txt
notes/Readme.txt
notes/ScrewYou.txt
About this analysis
This B2DR 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 B2DR.
Last updated: December 30, 2025
Elastio detects B2DR inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify B2DR 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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