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Matrix Ransomware ([KOK8@protonmail.com ].<Random>-<Random>.KOK8)

  • Distribution Method : Remote access through Remote Desktop Protocol(RDP) or Terminal Services
 
  • MD5 : b959e035604856ec73b008dae787ebb0
 
  • Encrypted File Pattern : [KOK8@protonmail.com ].<Random>-<Random>.KOK8
 
  • Malicious File Creation Location :
     - C:\Users\%UserName%\AppData\Roaming\<Random>.bat
     - C:\Users\%UserName%\AppData\Roaming\<Random>.bmp
     - C:\Users\%UserName%\AppData\Roaming\<Random>.vbs
 
  • Payment Instrucition File : #KOK8_README#.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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