Ransomware Research

Gibberish Ransomware

Gibberish is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2020, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Gibberish, Anenerbex, Velar, UPPER.

Quick Facts

Ransomware Family
Gibberish
First Seen
February 1, 2020
Known Aliases
GibberishAnenerbexVelarUPPER

How Gibberish Ransomware Works

Targeted Files

Encrypts first 0x19000 bytes

File Encryption Patterns

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

File extensions added after encryption:

..uk6ge..anenerbex..Velar..UPPER..~~~~..esexz

Ransom Note and Payment Demands

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

fileinfo.txt

Ransom message:

notes/info.txt

Note locations:

EveryFolder
fileanenerbex-info.txt

Ransom message:

notes/anenerbex-info.txt
filereadme.txt

Ransom message:

notes/readme.txt

Note locations:

EveryFolder
fileinfoUPPER.txt

Ransom message:

notes/infoUPPER.txt

Note locations:

EveryFolder
fileRead_ME.txt

Ransom message:

notes/Read_ME.txt

Note locations:

EveryFolder
fileRead~ME.txt

Ransom message:

notes/Read~ME.txt

Note locations:

EveryFolder
fileREADME.txt

Ransom message:

notes/README.txt

Technical Indicators

Associated Executable Files

The following executable files are associated with Gibberish ransomware:

  • A1.exe
  • 1,2.exe

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About This Analysis

This Gibberish 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 Gibberish.

Last updated: July 30, 2025

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