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Hermes v2.1 Ransomware (<Original Filename>.<Original Extension> / DECRYPT__INFORMATION.html)

  • Distribution Method : Unknown
 
  • MD5 : f031107bae6fb687aa73a2d6b72216c7
 
  • Major Detection Name : Trojan/Win32.Hermesran.C2575716 (AhnLab V3), Trojan.Ransom.Hermes (ALYac)
 
  • Encrypted File Pattern : <Original Filename>.<Original Extension>
 
  • Malicious File Creation Location :
     - C:\Users\Public\PUBLIC
     - C:\Users\Public\UNIQUE__ID_DO_NOT__REMOVE
     - C:\Users\Public\window.bat
     - C:\users\%UserName%\Desktop\DECRYPT__INFORMATION.html
 
  • Payment Instruction File : DECRYPT__INFORMATION.html
 
  • Major Characteristics :
     - Offline Encryption
     - Disable system restore (vssadmin Delete Shadows /all /quiet, vssadmin resize shadowstorage /for=<Drive Letter>: /on=<Drive Letter>: /maxsize=401MB, vssadmin resize shadowstorage /for=<Drive Letter>: /on=<Drive Letter>: /maxsize=unbounded)
     - Delete backup files (*.bac, *.bak, *.bkf, *.dsk, *.set, *.VHD, *.wbcat, *.win, Backup*.*, backup*.*)

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