Ransomware Research

CryptoBit Ransomware

CryptoBit is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on April 1, 2016, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
CryptoBit
First Seen
April 1, 2016

Ransom note and payment demands

After encrypting files, CryptoBit displays ransom notes demanding payment for file recovery:

fileOKSOWHATHAPPENDTOYOURFILES.TXT
notes/OKSOWHATHAPPENDTOYOURFILES.TXT
Location: EveryFolder
filehelloreadmenow23.TXT
notes/helloreadmenow23.TXT
filehelloreadmenow24.TXT
notes/helloreadmenow23.TXT

Technical indicators

Associated executable files

The following executable files are associated with CryptoBit ransomware:

About this analysis

This CryptoBit 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 CryptoBit.

Last updated: December 30, 2025

Detection coverage

Elastio detects CryptoBit inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify CryptoBit 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.

See How the Hunt Engine WorksRequest a Demo

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