Ransomware Research

Wessy Ransomware

Wessy is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2024, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
Wessy
First Seen
January 1, 2024

How Wessy ransomware works

File modification behavior

Wessy updates file modification timestamps after encryption.

File encryption patterns

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

Extensions added after encryption
  • .wessy

Ransom note and payment demands

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

fileREAD_ME.txt
notes/READ_ME.txt

Location: EveryFolder

screenshot
notes/9kf165wlp.jpg

Location: Desktop

Technical indicators

Associated executable files

The following executable files are associated with Wessy ransomware:

  • DonutLite1.2.1.exe
  • svchost.exe

About this analysis

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

Last updated: May 22, 2024

Detection coverage

Elastio detects Wessy inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Wessy across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a hunt against your recovery points to confirm.