Ransomware Research

SEND.ID.TO Ransomware

SEND.ID.TO is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on April 1, 2019, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
SEND.ID.TO
First Seen
April 1, 2019

How SEND.ID.TO ransomware works

File encryption patterns

SEND.ID.TO modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
.CRYPTED

Ransom note and payment demands

After encrypting files, SEND.ID.TO displays ransom notes demanding payment for file recovery:

fileHOW-TO-DECRYPT-FILES.txt
notes/HOW-TO-DECRYPT-FILES.txt
fileHOW TO DECRYPT FILES.txt

About this analysis

This SEND.ID.TO 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 SEND.ID.TO.

Last updated: December 30, 2025

Detection coverage

Elastio detects SEND.ID.TO inside your data and backups.

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

See How the Hunt Engine WorksRequest a Demo

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What is SEND.ID.TO Ransomware? | Elastio