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GonnaCry Ransomware (.GoNNaCry)

  • Distribution Method : Unknown
  • MD5 : 4ce7c1e483beb642f43715a47b96e32b
  • Major Detection Name : Trojan.Encoder.33919 (Dr.Web), Ransom/W64.GoNNaCry.7018496 (TACHYON)
  • Encrypted File Pattern : .GoNNaCry
  • Malicious File Creation Location : C:\Users\%UserName%\WindowsSecurityUpdate.exe
  • Payment Instruction File : GoNNaCry.html
  • Major Characteristics :
     - Offline Encryption
     - Disable and Blocks Task Manager (DisableTaskMgr)
     - Disable system restore (vssadmin delete shadow /all /quiet, wmic shadowcopy delete, bcdedit /set {default} boostatuspolicy ignoreallfailures, bcdedit /set {default} recoveryenabled no, wbadmin delete catalog -q)