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HILDACRYPT v1.1 Ransomware (.HCY!)

  • Distribution Method : Unknown
 
  • MD5 : 9bb6284c86adacd84beb0d2d21fce950
 
  • Major Detection Name : Ransom.HildaCrypt (Malwarebytes), Ransom-Hildacrypt.a (McAfee)
 
  • Encrypted File Pattern : .HCY!
 
  • Malicious File Creation Location :
     - C:\Users\%UserName%\AppData\Roaming\{<Random>-<Random>-<Random>-<Random>-<Random>}
     - C:\Users\%UserName%\AppData\Roaming\{<Random>-<Random>-<Random>-<Random>-<Random>}\JKfgkgj3hjgfhjka.bat
 
  • Payment Instruction File : HILDACRYPTReadMe.html
 
  • Major Characteristics :
     - Offline Encryption
     - Stop multi services (net stop SQLAgent$SYSTEM_BGC /y, net stop “Sophos Device Control Service” /y, net stop macmnsvc /y, net stop SQLAgent$ECWDB2 /y, net stop “Zoolz 2 Service” /y, net stop McTaskManager /y etc.)
     - Disable system restore (vssadmin resize shadowstorage /for=<Drive Letter>: /on=<Drive Letter>: /maxsize=401MB, vssadmin resize shadowstorage /for=<Drive Letter>: /on=<Drive Letter>: /maxsize=unbounded, bcdedit /set {default} recoveryenabled No, bcdedit /set {default} bootstatuspolicy ignoreallfailures, vssadmin Delete Shadows /all /quiet)

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