Ransomware Research

InfraLocker Ransomware

InfraLocker is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2025, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
InfraLocker
First Seen
June 1, 2025

How InfraLocker ransomware works

File encryption patterns

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

Extensions added after encryption
.infra

Ransom note and payment demands

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

fileHow To Restore Your Files.txt
notes/How To Restore Your Files.txt
Location: RansomPayloadStartFolder

About this analysis

This InfraLocker 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 InfraLocker.

Last updated: December 30, 2025

Detection coverage

Elastio detects InfraLocker inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify InfraLocker 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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