Ransomware Research

Spora Ransomware

Spora is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2017, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
Spora
First Seen
January 1, 2017

Ransom note and payment demands

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

file/^README_\w{8}\.hta$/
notes/README_sTlLoTpq.hta
Location: EveryFolder
file/^HELP_[A-Za-z0-9]{8}\.html$/
Location: EveryFolder
file/^[A-Z0-9]{5}-[A-Z0-9]{5}-[A-Z0-9]{5}-[A-Z0-9]{5}-[A-Z0-9]{5}\.HTML$/
notes/USC31-0AFRT-XHTZT-AATXE-GTAZY.HTML
Location: EveryFolder
file/^[A-Z0-9]{5}-[A-Z0-9]{5}-[A-Z0-9]{5}-[A-Z0-9]{5}\.HTML$/
notes/USAF2-7DZTZ-TZTXF-THZTZ.HTML
Location: EveryFolder

Technical indicators

Associated executable files

The following executable files are associated with Spora ransomware:

About this analysis

This Spora 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 Spora.

Last updated: December 30, 2025

Detection coverage

Elastio detects Spora inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Spora 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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