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CryLocker Ransomware (.cry)

  • Distribution Method : Unknown
 
  • MD5 : 429d758d5e4423dfcde9a0f820806c7c
 
  • Major Detection Name : Ransom:Win32/Milicry.A (Microsoft), Ransom.Cry (Norton)
 
  • Encrypted File Pattern : .cry
 
  • Malicious File Creation Location :
     - C:\Users\%UserName%\AppData\Local\Temp\<Random>.exe
     - C:\Users\%UserName%\AppData\Local\Temp\<8-Digit Random>.html
     - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\<8-Digit Random>.lnk
     - C:\Windows\System32\Tasks\<8-Digit Random>
 
  • Payment Instruction File : !Recovery_<6-Digit Random>.html / !Recovery_<6-Digit Random>.txt / <8-Digit Random>.html
 
  • Payment Instruction File :
     - Offline Encryption
     - Sage Ransomware series
     - Disable system restore (vssadmin.exe delete shadows /all /quiet)
     - Adds <8-Digit Random> to scheduler to execute "%Temp%\<Random>.exe" at user login

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