Ransomware Research

BooM Ransomware

BooM is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2018, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Epsilon, Revenge, BooM NextGen.

Quick Facts

Ransomware Family
BooM
First Seen
December 1, 2018
Known Aliases
EpsilonRevengeBooM NextGen

How BooM Ransomware Works

Targeted Files

Full extension of encrypted files -> [neftet@tutanota.com].boom Skips 32+ first bytes of encrypted files

File Encryption Patterns

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

File extensions added after encryption:

..Boom..REVENGE

Ransom Note and Payment Demands

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

fileHOW TO DECRYPT FILES.txt

Ransom message:

notes/HOW TO DECRYPT FILES.txt

Note locations:

EveryFolder
fileReadToRestore.txt

Ransom message:

notes/ReadToRestore.txt

Note locations:

Desktop
message

Ransom message:

notes/ReadToRestore.txt

Note locations:

OnceOnCompletion

Technical Indicators

Associated Executable Files

The following executable files are associated with BooM ransomware:

  • file_to_save.exe
  • file_to_send
  • Boom ransomware.exe
  • BooM Ransomeware.exe
  • BooM.exe
  • boom.exe
  • Tempsvchost.exe
  • BooM2.exe
  • Ransomeware.exe

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About This Analysis

This BooM 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 BooM.

Last updated: July 30, 2025

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