Unlock92 Ransomware
Unlock92 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2016, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Unlock92 (v.1-2), Unlckr, Naampa.
Quick facts
How Unlock92 ransomware works
File encryption patterns
Unlock92 modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, Unlock92 displays ransom notes demanding payment for file recovery:
notes/--------ПРОЧТИ МЕНЯ--------.txt
notes/!_ИНСТРУКЦИЯ_!.txt
notes/!----README----!.jpg
notes/----как---вернуть---ваши---файлы----.jpg
notes/!!---HOW RESTORE YOUR FILES---!!.jpg
notes/!!!!!!!!Как восстановить файлы!!!!!!!.txt
notes/ЧТO ДEЛAТЬ ДЛЯ ВОССТАНОВЛЕНИЯ ФAЙЛOB.txt
notes/LVYR.jpg
Technical indicators
Associated executable files
The following executable files are associated with Unlock92 ransomware:
- типовой акт сверки сентябрь 2015.xlsx.scr
- BTTP.exe
- UNLOCK92
- карта партнера.doc.exe
- BCART.exe
- pdf.exe
- pdf.exe.bin
- KSATAT.exe
- заявка.xlsx.exe#
- LAMAR.exe
- LAMAR.e
- MKEMBE.exe
- MKEMBE2.ex
- aa
- 3_Id591.zip
- naampa.exe
- MMSPERT.EXE
- mmspert.exe
- notrad.exe
- rdptm4.x
- naampa.exe (mmspert.exe)
- onastt.exe
Recovery and decryption tools
Decryption tools may be available for Unlock92. Review the resources below:
About this analysis
This Unlock92 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 Unlock92.
Last updated: December 30, 2025
Elastio detects Unlock92 inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Unlock92 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.
Recent ransomware
Explore other threats in our database