Ransomware Research

A.E.S.R.T Ransomware

A.E.S.R.T is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on November 1, 2022, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
A.E.S.R.T
First Seen
November 1, 2022

How A.E.S.R.T Ransomware Works

File Encryption Patterns

A.E.S.R.T modifies encrypted files using specific patterns to mark them as encrypted:

File extensions added after encryption:

..AESRT

Ransom Note and Payment Demands

After encrypting files, A.E.S.R.T displays ransom notes demanding payment for file recovery:

screenshot

Ransom message:

notes/AESRTback.png

Note locations:

Desktop
message

Ransom message:

notes/note.txt

Note locations:

OnceOnCompletion

Technical Indicators

Associated Executable Files

The following executable files are associated with A.E.S.R.T ransomware:

  • 7864468.exe
  • A.E.S.R.T.exe
  • infected.exe
  • MW (354).exe

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About This Analysis

This A.E.S.R.T 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 A.E.S.R.T.

Last updated: October 30, 2025

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