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Xorist Ransomware (.XiNo)

  • Distribution Method : Remote access through Remote Desktop Protocol(RDP) or Terminal Services
 
  • MD5 : 721a4417029a094cf087a7278462ef49
 
  • Major Detection Name : Trojan/Win32.Xorist.R25524 (AhnLab V3), TR/Ransom.Xorist.EJ (Avira)
 
  • Encrypted File Pattern : .XiNo
 
  • Malicious File Creation Location :
     - C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\HOW TO DECRYPT FILES.txt
     - C:\Users\%UserName%\AppData\Local\Temp\NO8dU1L48Y93GVb.exe
     - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HOW TO DECRYPT FILES.txt
 
  • Payment Instruction File : HOW TO DECRYPT FILES.txt
 
  • Major Characteristics :
     - Offline Encryption
     - Boom / Xorist-Frozen Ransomware series
     - Change the encrypted file (.XiNo) icon (HKEY_CLASSES_ROOT\NQHDHZBCUWINRQM)
     - Changes desktop background (C:\Users\%UserName%\AppData\Local\Temp\<Random>.bmp)

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