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CryptoMix Ransomware (<Random Filename>.DLL)

  • Distribution Method : Remote access through Remote Desktop Protocol(RDP) or Terminal Services
 
  • MD5 : 3572986d1678e57f8dab72879eb3e20c
 
  • Major Detection Name : Trojan.Ransom.CryptoMix (ALYac), Ransom.Win32.CRYPTOMIX.THDAOAI (Trend Micro)
 
  • Encrypted File Pattern : <Random Filename>.DLL
 
  • Malicious File Creation Location :
     - C:\ProgramData\<Random>.DLL
     - C:\ProgramData\<Random>.exe
     - C:\Users\%UserName%\Desktop\_HELP_INSTRUCTION.TXT
 
  • Payment Instruction File : _HELP_INSTRUCTION.TXT
 
  • Major Characteristics :
     - Offline Encryption
     - CryptFile2 / CryptoShield / HydraCrypt / Mole / Revenge / Zeta Ransomware series

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