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CrySis Ransomware (.id-<Random>.[satan2018@protonmail.com].java)

  • Distribution Method : Remote access through Remote Desktop Protocol(RDP) or Terminal Services
 
  • MD5 : 9d7a6121275b63c556c34243faf32426
 
  • Major Detection Name : a variant of Win32/Kryptik.GBHX (ESET), Ransom:Win32/Genasom (Microsoft)
 
  • Encrypted File Pattern : .id-<Random>.[satan2018@protonmail.com].java
 
  • Malicious File Creation Location :

 - C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\<Random>.exe
 - C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
 - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\<Random>.exe
 - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
 - C:\Users\%UserName%\AppData\Roaming\<Random>.exe
 - C:\Users\%UserName%\AppData\Roaming\Info.hta
 - C:\Windows\System32\<Random>.exe
 - C:\Windows\System32\Info.hta

 

  • Payment Instruction File : FILES ENCRYPTED.txt / Info.hta
​​​​​​​
  • Major Characteristics :
​​​​​​​ - Offline Encryption
​​​​​​​ - Dharma Ransomware series
​​​​​​​ - Block processes execution (mysqld.exe, mysqld-nt.exe, postgres.exe, sqlservr.exe etc.)
​​​​​​​ - Stop multi services (mssqlserver, sqlserveradhelper etc.)
​​​​​​​ - Disable system restore (vssadmin delete shadows /all /quiet)

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