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Jigsaw Ransomware (.booknish)

  • Distribution Method : Unknown
 
  • MD5 : 668207feef7900539b03ab48817567a2
 
  • Major Detection Name : Trojan/Win32.Jigsaw.C2527023 (AhnLab V3), Generic.MSIL.Ransomware.Jigsaw.1E1D2393 (BitDefender)
 
  • Encrypted File Pattern : .booknish
 
  • Malicious File Creation Location :
     - C:\Users\%UserName%\AppData\Local\Drpbx
     - C:\Users\%UserName%\AppData\Local\Drpbx\drpbx.exe
     - C:\Users\%UserName%\AppData\Roaming\Frfx
     - C:\Users\%UserName%\AppData\Roaming\Frfx\firefox.exe
     - C:\Users\%UserName%\AppData\Roaming\System32Work
     - C:\Users\%UserName%\AppData\Roaming\System32Work\Address.txt
     - C:\Users\%UserName%\AppData\Roaming\System32Work\dr
     - C:\Users\%UserName%\AppData\Roaming\System32Work\EncryptedFileList.txt
 
  • Major Characteristics :
     - Offline Encryption
     - Ramsey Ransomware series
     - Automatically delete encrypted files every hour

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