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Boom Ransomware (.Boom)

  • Distribution Method : Unknown
 
  • MD5 : e40c6c092f093bd84544c46b75136212
 
  • Major Detection Name : Trojan/Win32.Xorist.R25524 (AhnLab V3), Trj/RansomXor.A (Panda)
 
  • Encrypted File Pattern : .Boom
 
  • Malicious File Creation Location :
     - C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\HOW TO DECRYPT FILES.txt
     - C:\Users\%UserName%\AppData\Local\Temp\<Random>.exe
     - C:\Users\%UserName%\AppData\Local\Tempsvchost.exe
     - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\BooM.exe
     - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HOW TO DECRYPT FILES.txt
 
  • Payment Instruction File : HOW TO DECRYPT FILES.txt
 
  • Major Characteristics :
     - Offline Encryption
     - Xorist / Xorist-Frozen Ransomware series
     - When executing .Boom file extension, displays message window.
     - Changes desktop background (C:\Users\%UserName%\AppData\Local\Temp\<Random>.bmp)

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