Ransomware Research

0kilobypt Ransomware

0kilobypt is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2016, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
0kilobypt
First Seen
March 1, 2016

How 0kilobypt ransomware works

File modification behavior

How 0kilobypt alters file modification timestamps is not known.

File encryption patterns

0kilobypt modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
  • .CRYPT
  • .cr
  • .val
  • ./\.\w{8}$/
  • ./\.\w{5}$/

Ransom note and payment demands

After encrypting files, 0kilobypt displays ransom notes demanding payment for file recovery:

fileWHERE ARE YOUR FILES READ ME (ГДЕ ТВОИ ФАЙЛЫ, ПРОЧИТАЙ МЕНЯ).txt
notes/WHERE ARE YOUR FILES READ ME (ГДЕ ТВОИ ФАЙЛЫ, ПРОЧИТАЙ МЕНЯ).txt
file!!!ПОМОЖЕМ_С_ФАЙЛАМИ_(rekoh4th@secmail.pro).txt
file!!!ПРОЧИТАТЬ!!!.txt
notes/README.txt
fileВЕРНУТЬ ВАШИ ФАЙЛЫ.txt
notes/ВЕРНУТЬ ВАШИ ФАЙЛЫ.txt
fileRECOVERY.txt
notes/RECOVERY.txt
fileREADME.txt
notes/README.txt
fileRECOVERY.hta
notes/RECOVERY.hta.txt

About this analysis

This 0kilobypt 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 0kilobypt.

Last updated: June 8, 2023

Detection coverage

Elastio detects 0kilobypt inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify 0kilobypt across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a hunt against your recovery points to confirm.