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Sodinokibi Ransomware (.<5~10-Digit Random Extension> / <Encryption Extension>-readme.txt / English & Korean Version)

  • Distribution Method : Automatic infection using exploit by visiting website
 
  • MD5 : 3274669199531a5ab225a1e110bf3a11
 
  • Major Detection Name : Trojan.Ransom.Sodinokibi (ALYac), a variant of Win32/Kryptik.GYDV (ESET)
 
  • Encrypted File Pattern : .<5~10-Digit Random Extension>
 
  • Malicious File Creation Location : C:\Users\%UserName%\AppData\Local\Temp\rad<Random>.tmp.exe
 
  • Payment Instruction File : <Encryption Extension>-readme.txt
 
  • Major Characteristics :
     - Offline Encryption
     - AnteFrigus / GandCrab Ransomware series
     - The English and Korean users targeted.
     - Disable system restore using Windows PowerShell function (G e t - W m i O b j e c t   W i n 3 2 _ S h a d o w c o p y   |   F o r E a c h - O b j e c t   { $ _ . D e l e t e ( ) ; })
     - Changes desktop background (C:\Users\%UserName%\AppData\Local\Temp\<Random>.bmp)

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