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FonixCrypter Ransomware (.EMAIL=[repter@tuta.io]ID=[<Random>].repter)

  • Distribution Method : Unknown
 
  • MD5 : 784d27170c1761184cef189fa4889cc6
 
  • Major Detection Name : Generic.Ransom.DMR.6C01C044 (BitDefender), Ransom.Repter (Malwarebytes)
 
  • Encrypted File Pattern : .EMAIL=[repter@tuta.io]ID=[<Random>].repter
 
  • Malicious File Creation Location :
     - C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\How To Decrypt Files.hta
     - C:\Users\%UserName%\AppData\Local\Temp\repter.exe
     - C:\Users\%UserName%\AppData\Local\Tempepter.exe
     - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\How To Decrypt Files.hta
     - C:\Users\%UserName%\AppData\Roaming\Cpub.key
     - C:\Users\%UserName%\AppData\Roaming\Pkey.key
     - C:\Users\%UserName%\AppData\Roaming\SystemID
 
  • Payment Instruction File : How To Decrypt Files.hta
 
  • Major Characteristics :
     - Offline Encryption
     - Disable and Blocks Task Manager (DisableTaskMgr)
     - Disable Windows Defender (DisableAntiSpyware)
     - Block processes execution (agntsvc.exe, msftesql.exe, oracle.exe, sqlservr.exe, vboxservice.exe, vmwareservice.exe etc.)
     - Disable system restore (vssadmin Delete Shadows /All /Quiet, wmic shadowcopy delete, bcdedit /set {default} boostatuspolicy ignoreallfailures, bcdedit /set {default} recoveryenabled no, wbadmin delete catalog -quiet)
     - Adds repter to scheduler to execute "%Temp%\repter.exe" at user login
     - Delete a safe mode boot registry value (reg delete HKEY_CURRENT_USER\System\CurrentControlSet\Control\SafeBoot /va /F, reg delete HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\SafeBoot /va /F)

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