Ransomware Research

Se7en Ransomware

Se7en is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2025, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
Se7en
First Seen
May 1, 2025

How Se7en ransomware works

File encryption patterns

Se7en modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
.se7en

Ransom note and payment demands

After encrypting files, Se7en displays ransom notes demanding payment for file recovery:

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

About this analysis

This Se7en 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 Se7en.

Last updated: December 30, 2025

Detection coverage

Elastio detects Se7en inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Se7en 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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