Ransomware Research

Princess Locker-2 Ransomware

Princess Locker-2 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2018, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
Princess Locker-2
First Seen
March 1, 2018

How Princess Locker-2 ransomware works

File encryption patterns

Princess Locker-2 modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
./\.[A-Za-z0-9]{4,6}$/

Ransom note and payment demands

After encrypting files, Princess Locker-2 displays ransom notes demanding payment for file recovery:

file/^=_HOW_TO_FIX_[A-Za-z0-9]{4,6}\.txt$/
file/^=_THIS_TO_FIX_[A-Za-z0-9]{4,6}\.html$/
notes/=_THIS_TO_FIX_r7KHt.html
Location: EveryFolder
file/^=_THIS_TO_FIX_[A-Za-z0-9]{4,6}\.txt$/
notes/=_THIS_TO_FIX_r7KHt.txt
Location: EveryFolder
file/^=_THIS_TO_FIX_[A-Za-z0-9]{4,6}\.url$/
notes/=_THIS_TO_FIX_r7KHt.url
Location: EveryFolder

Technical indicators

Associated executable files

The following executable files are associated with Princess Locker-2 ransomware:

About this analysis

This Princess Locker-2 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 Princess Locker-2.

Last updated: December 30, 2025

Detection coverage

Elastio detects Princess Locker-2 inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Princess Locker-2 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

Recent ransomware

Explore other threats in our database

Wxlongda2025VeilCrypt2025TitanLabooboo2025SolidBit2022SnapHackLocker2024PySystemUpdate2025PySimCrypt2025Monkey2025Lol2025HWID2025
View all ransomware →