Khonsari Ransomware
Khonsari is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2021, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Log4Shell Ransomware.
Quick facts
How Khonsari ransomware works
File encryption patterns
Khonsari modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, Khonsari displays ransom notes demanding payment for file recovery:
notes/HOW TO GET YOUR FILES BACK.TXT
Technical indicators
Associated executable files
The following executable files are associated with Khonsari ransomware:
- FecitAntiques.exe
- khonsari.exe
- binary
- groenhuyzen.exe
About this analysis
This Khonsari 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 Khonsari.
Last updated: December 30, 2025
Elastio detects Khonsari inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Khonsari 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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