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GlobeImposter Ransomware (.lockfiles / how_to_back_files.html)

  • Distribution Method : Remote access through Remote Desktop Protocol(RDP) or Terminal Services
 
  • MD5 : b0e530a4e90f1b2088304eff93541e06
 
  • Major Detection Name : Generic.Ransom.GlobeImposter.991C1D63 (BitDefender), Globelmposter!B0E530A4E90F (McAfee)
 
  • Encrypted File Pattern : .lockfiles
 
  • Malicious File Creation Location :
     - C:\Users\%UserName%\AppData\Local\Temp\tmp<Random>.tmp.bat
     - C:\Users\%UserName%\AppData\Local\<Random>.exe
 
  • Payment Instruction File : how_to_back_files.html
 
  • Major Characteristics :
     - Offline Encryption
     - Fake Globe / PSCrypt Ransomware series
     - Disable system restore (vssadmin.exe Delete Shadows /All /Quiet)
     - Initializing the Terminal Server Client Registry (reg delete "HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Default" /va /f, reg delete "HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Servers" /f, reg add "HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Servers")
     - Deletes event log

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