Ransomware Research

Ricin Ransomware

Ricin is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2026, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
Ricin
First Seen
May 1, 2026

How Ricin ransomware works

File modification behavior

Ricin updates file modification timestamps after encryption.

File encryption patterns

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

Extensions added after encryption
  • .rdplocked

Ransom note and payment demands

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

fileREADME.txt
notes/README.txt

Location: EveryFolder

screenshot
notes/ieqZXZ1yJ.jpg

Location: Desktop

Technical indicators

Associated executable files

The following executable files are associated with Ricin ransomware:

  • ricin.exe

About this analysis

This Ricin 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 Ricin.

Last updated: August 19, 2026

Detection coverage

Elastio detects Ricin inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Ricin 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.