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Ransomware Research
Tmf09 Ransomware
Tmf09 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on April 1, 2026, this ransomware has been actively targeting systems worldwide.
Quick facts
- Ransomware Family
- Tmf09
- First Seen
- April 1, 2026
How Tmf09 ransomware works
File modification behavior
Tmf09 updates file modification timestamps after encryption.
File encryption patterns
Tmf09 modifies encrypted files using specific patterns to mark them as encrypted:
Extensions added after encryption
- .locked
Ransom note and payment demands
After encrypting files, Tmf09 displays ransom notes demanding payment for file recovery:
Technical indicators
Associated executable files
The following executable files are associated with Tmf09 ransomware:
- tmf09.exe
- ransomware.exe
About this analysis
This Tmf09 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 Tmf09.
Detection coverage
Elastio detects Tmf09 inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Tmf09 across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a hunt against your recovery points to confirm.