Sfile Ransomware
Sfile is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on April 1, 2020, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Sfile2, Sfile3, Escal, Sfile NextGen.
Quick facts
How Sfile ransomware works
File encryption patterns
Sfile modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, Sfile displays ransom notes demanding payment for file recovery:
notes/!!_FILES_ENCRYPTED_.txt
notes/how restore hurt documents.inf
notes/readme_to BRN.inf
notes/how_decipher hurt data.inf
notes/message_to fmiint.log
Technical indicators
Associated executable files
The following executable files are associated with Sfile ransomware:
- ransomware.bin
- TrojanWin32Occamy.CD3.exe
- ransomware.exe
- пункты назначения
- грузы.xlsx.exe
- webroot_updater.exe
- ransomwareq5.exe
- rsa_enc_FreeBSD_x64
- hg.exe
- SystemScheduleHost.exe
About this analysis
This Sfile 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 Sfile.
Last updated: December 30, 2025
Elastio detects Sfile inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Sfile 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.
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