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Check out our video library AppCheck defending against newest ransomware, automatic recovery and real-time backup.

  • Distribution Method : Automatic infection using exploit by visiting website
 
  • MD5 : 59ef984c16a5c1723d9958fbeb1b7450
 
  • Major Detection Name : Ransom:Win32/Sobnot.A (Microsoft), Ransom_MAGNIBER.A (Trend Micro)
 
  • Encrypted File Pattern : .ihsdj
 
  • Malicious File Creation Location :
         - C:\Users\%UserName%\AppData\Local\Temp\ihsdj.exe
         - C:\Users\%UserName%\AppData\Local\Temp\READ_ME_FOR_DECRYPT_<Random>_.txt
         - C:\Users\%UserName%\Desktop\<Random>.exe
         - C:\Windows\System32\Tasks\ihsdj
         - C:\Windows\System32\Tasks\<Random>
 
  • Payment Instruction File : READ_ME_FOR_DECRYPT_<Random>_.txt
 
  • Major Characteristics :
         - Offline Encryption
         - Run only on Korean operating system
         - Auto execute ransomware (pcalua.exe -a %Temp%\ihsdj.exe) and payment instrucition file (%Temp%\READ_ME_FOR_DECRYPT_<Random>_.txt) every 15 minutes by adding Task Scheduler entries

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