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Xorist Ransomware (.mafee)

  • Distribution Method : Unknown
 
  • MD5 : 1a2bcbcf04aeb44e406cc0b12e095fb4
 
  • Major Detection Name : Gen:Variant.Ransom.Xorist.82 (BitDefender), Trojan.Win32.S.Xorist.7022592 (ViRobot)
 
  • Encrypted File Pattern : .mafee
 
  • Malicious File Creation Location :
     - C:\Users\%UserName%\AppData\Local\Temp\CFBB2DvU1gCe02D.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
     - The Spanish users are targeted.
     - File encryption using "C:\WINDOWS\SysWOW64\attrib.exe"
     - Change the encrypted file (.mafee) icon (HKEY_CLASSES_ROOT\EVUCIMVTJWNMBZA).

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