Ransomware Research

Paradise Ransomware

Paradise is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2017, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Paradise unencrypted, Paradise decrypted, Paradise .NET, Paradise 2020.

Quick facts

Ransomware Family
Paradise
First Seen
September 1, 2017
Known Aliases
  • Paradise unencrypted
  • Paradise decrypted
  • Paradise .NET
  • Paradise 2020

How Paradise ransomware works

File modification behavior

Paradise updates file modification timestamps after encryption.

File encryption patterns

Paradise modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
  • .ransom
  • .NewCore
  • .{admin@prt-decrypt.xyz}.xyz
  • .logger
  • .sev
  • .paradise
  • .sell
  • .prt
  • .b29
  • .VACv2
  • .CORP
  • .STUB
  • .p3rf0rm4
  • .securityP
  • .Recognizer
  • .exploit
  • .sambo
  • .junior
  • .safe
  • .kiss
  • .2k19sys
  • .bitcore
  • .b1
  • .rdp
  • .payload
  • .ebal
  • .njkwe
  • .777
  • .FC
  • .iskaluz
  • .honkai
  • ._decryptor_{Pyigxu}.tor
  • .immortal
  • .2k19cry
  • .r00t
  • .mak
  • ._Kim Chin Im_{YyKVuO}.Im

Ransom note and payment demands

After encrypting files, Paradise displays ransom notes demanding payment for file recovery:

file#DECRYPT MY FILES#.txt
notes/#DECRYPT MY FILES#.txt

Location: EveryFolder

file#DECRYPT MY FILES#.html
notes/#DECRYPT MY FILES#.html

Location: EveryFolder

fileKEY BACKUP.txt
filePARADISE_README_paradise@all-ransomware.info.txt
notes/PARADISE_README_paradise@all-ransomware.info.txt

Location: EveryFolder

file/^#DECRYPT MY FILES# [a-zA-Z0-9]{8}\.html$/
notes/#DECRYPT MY FILES# vN6YLGIr.html
file$%%! NOTE ABOUT FILES -=!-.html
fileInstructions with your files.txt
notes/Instructions with your files.txt

Location: EveryFolder

file%= RETURN FILES =&.html
notes/%= RETURN FILES =&.html

Location: EveryFolder

file=_BACK_FILES_~.html
file%$ BACK FILES !#.html
file---%$$$OPEN_ME_UP$$$---.txt
notes/---%$$$OPEN_ME_UP$$$---.txt
file-=###_INFO_you_FILE_###=-.txt
notes/-=###_INFO_you_FILE_###=-.txt

Location: EveryFolder

file$%%! NOTE ABOUT FILES -=!-.html
notes/$%%! NOTE ABOUT FILES -=!-.html

Location: EveryFolder

file---==%$$$OPEN_ME_UP$$$==---.txt
notes/---==%$$$OPEN_ME_UP$$$==---.txt

Location: EveryFolder

file/^[a-zA-Z0-9]{20,30}\.hta$/
notes/A3QloxkZlkV7avmKdHILo5qUEQez.hta

Location: StartUp

file$&#~! README =$-!=.html
file%%_WHERE_MY_FILES_=#.html
notes/%%_WHERE_MY_FILES_=#.html

Location: EveryFolder

file—==%$$$OPEN_ME_UP$$$==—.txt

Location: EveryFolder

filenooode.txt
notes/nooode.txt

Technical indicators

Associated executable files

The following executable files are associated with Paradise ransomware:

  • DP_Main.exe
  • DP_Main.exe1
  • dp_main.exe
  • myfile.exe
  • badfail.exe
  • paradise.exe
  • 726q.exe
  • 8gfg.exe
  • Paradise Ransomware.exe
  • Paradise.exe
  • Bg1B.exe
  • v9_40_.exe
  • TT.exe
  • v4_40_.exe
  • 1.EXE.QUARANTINE
  • CLJTNAEPAXCDIWCQBJFGRWM6K.EXE
  • Homeworkhelp
  • Trojan.Ransom.Paradise.exe
  • 4643.exe
  • CV.exe
  • vxjqig.exe
  • uvulko.exe
  • key.exe
  • 4RH207OE.exe
  • blofrWNV.exe

About this analysis

This Paradise 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 Paradise.

Last updated: April 2, 2025

Detection coverage

Elastio detects Paradise inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Paradise 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.