Ransomware Research

BOBER Ransomware

BOBER is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2025, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
BOBER
First Seen
August 1, 2025

How BOBER Ransomware Works

File Encryption Patterns

BOBER modifies encrypted files using specific patterns to mark them as encrypted:

File extensions added after encryption:

..qkfhr

Ransom Note and Payment Demands

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

fileR3ADM3.txt

Ransom message:

notes/R3ADM3.txt

Note locations:

EveryFolder

Technical Indicators

Associated Executable Files

The following executable files are associated with BOBER ransomware:

  • v8fokzjc.exe
  • f1ky4c.exe
  • xtbd7.exe
  • neqwc.exe
  • xocq0r4z.exe
  • pmk5nl.exe
  • 0ew80txuq.exe
  • gybstp.exe
  • q5lg65.exe
  • 3pak3o2.exe
  • 5uub6lr.exe
  • s2qq5q.exe
  • 98ybcu5j.exe
  • nxeirk.exe
  • ixxkyswxn.exe
  • 11bs8kc.exe
  • minr97.exe
  • dk36ba575.exe
  • iqqpzj.exe
  • qxsx1t7t.exe
  • b2tcd1.exe
  • ci3ef.exe
  • e.exe

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About This Analysis

This BOBER ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like BOBER.

Last updated: September 30, 2025

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