Ransomware Research

Abyss Ransomware

Abyss is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2023, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
Abyss
First Seen
May 1, 2023

How Abyss Ransomware Works

Targeted Files

https://www.bleepingcomputer.com/news/security/linux-version-of-abyss-locker-ransomware-targets-vmware-esxi-servers/#google_vignette MD5 (non-public sample) -> 28E7CF3D80CFDC9FFB650BAAAC74DAA8

File Encryption Patterns

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

File extensions added after encryption:

..Abyss

Ransom Note and Payment Demands

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

fileWhatHappened.txt

Ransom message:

notes/WhatHappened.txt

Note locations:

EveryFolder
screenshot

Ransom message:

notes/readme.bmp

Note locations:

Desktop

Technical Indicators

Associated Executable Files

The following executable files are associated with Abyss ransomware:

  • Salary Details Analyser.exe
  • UM Q VAZEI HOJE.exe

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About This Analysis

This Abyss 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 Abyss.

Last updated: July 30, 2025

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