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Jigsaw Ransomware (.choda)

  • Distribution Method : Unknown
 
  • MD5 : 5adc79efb58efe544aba80a79a3661a9
 
  • Major Detection Name : a variant of MSIL/Filecoder.Jigsaw.D (ESET), Ransom.Jigsaw.Generic (Malwarebytes)
 
  • Encrypted File Pattern : .choda
 
  • Malicious File Creation Location :
     - C:\Users\%UserName%\AppData\Local\OfficeUpdate\svchost.exe
     - C:\Users\%UserName%\AppData\Roaming\GoogleChromeUpdate\msconfig.exe
 
  • Major Characteristics :
     - Offline Encryption
     - Ramsey Ransomware series
     - Developed by a Korean
     - Create a fake ".NET Framework Initialization Error" message

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