Ransomware Research

UIWIX Ransomware

UIWIX is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2017, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
UIWIX
First Seen
May 1, 2017

How UIWIX Ransomware Works

Targeted Files

Full extension -> ._[10_digit_victim_id].UIWIX https://www.bleepingcomputer.com/forums/t/646253/uiwix-ransomware-help-support-topic-uiwix-decode-filestxt/ Requires C&C in TOR

File Encryption Patterns

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

File extensions added after encryption:

..UIWIX

Ransom Note and Payment Demands

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

file_DECODE_FILES.txt

Ransom message:

notes/_DECODE_FILES.txt

Technical Indicators

Associated Executable Files

The following executable files are associated with UIWIX ransomware:

  • UIWIX.exe
  • Trojan.Ransom.UIWIX.exe
  • 410.json
  • UIWIX.bin
  • sample (36).bin%vir
  • 146581f0b3fbe00026ee3ebe68797b0e57f39d1d8aecc99fdc3290e9cfadc4fc.vir.DNvir
  • UIWIX.exe.bin
  • 146581f0b3fbe00026ee3ebe68797b0e57f39d1d8aecc99fdc3290e9cfadc4fc.146581f0b3fbe00026ee3ebe68797b0e57f39d1d8aecc99fdc3290e9cfadc4fc
  • UIWIX-01.DLL
  • aa
  • Z2vrcbvT2.tar.bz2

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About This Analysis

This UIWIX ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like UIWIX.

Last updated: July 30, 2025

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