Ransomware Research

Allrighty Ransomware

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

Quick facts

Ransomware Family
Allrighty
First Seen
November 1, 2017
Known Aliases
  • SleepyFish
  • Nanocore

How Allrighty ransomware works

File modification behavior

How Allrighty alters file modification timestamps is not known.

File encryption patterns

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

Extensions added after encryption
  • .ncrypted
  • .encrypted

Ransom note and payment demands

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

fileransom_file.txt
notes/ransom_file.txt

Location: Desktop

fileRANSOM_NOTE.txt
notes/RANSOM_NOTE.txt

Location: Desktop

fileDECRYPT_FILES.html
notes/DECRYPT_FILES.html

Location: Desktop

fileREAD_ME_NANOCORE.txt
notes/READ_ME_NANOCORE.txt

Location: Desktop, ProgramData

screenshot
notes/wall.png

Location: Desktop

Technical indicators

Associated executable files

The following executable files are associated with Allrighty ransomware:

  • ransomware joke (4)
  • SleepyFish Ransomware.exe
  • analbahr.com_2.exe
  • m88lv.com_2.exe
  • u88.art_2.exe
  • mrhythmstudy.org_2.exe
  • socolive27.ac_2.exe
  • minework.io_2.exe
  • 88j.co.com_2.exe
  • u88.lifestyle.exe
  • tomhanks-online.com.exe
  • 4199.us.com.exe
  • powmia.ca_2.exe
  • docs.safesecurityfrour.com_2.exe
  • socolivepm.com_2.exe
  • ms783in.com.exe
  • www.bneg.io.exe
  • z63h.za.com.exe
  • xoilactvlinke.com_2.exe

About this analysis

This Allrighty 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 Allrighty.

Last updated: August 12, 2026

Detection coverage

Elastio detects Allrighty inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Allrighty 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.