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Matrix Ransomware ([EncodeMan@qq.com].<Random>-<Random>.EMAN)

  • Distribution Method : Unknown
 
  • MD5 : a93bd199d34d21cc9102600c6ce782cf
 
  • Major Detection Name : a variant of Win32/Filecoder.LockedFile.I (ESET), Ransom.Matrix (Malwarebytes)
 
  • Encrypted File Pattern : [EncodeMan@qq.com].<Random>-<Random>.EMAN
 
  • Malicious File Creation Location :
     - C:\Users\%UserName%\AppData\Roaming\<Random>.bat
     - C:\Users\%UserName%\AppData\Roaming\<Random>.vbs
     - C:\Windows\System32\Tasks\DSHCA
 
  • Payment Instruction File : #README_EMAN#.rtf
 
  • Major Characteristics :
     - Offline Encryption
     - Disable system restore (vssadmin Delete Shadows /All /Quiet, wmic SHADOWCOPY DELETE, bcdedit /set {default} recoveryenabled No, bcdedit /set {default} bootstatuspolicy ignoreallfailures)
     - Changes desktop background (C:\Users\%UserName%\AppData\Roaming\<Random>.bmp)

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