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GarrantyDecrypt Ransomware (.bigbosshorse)

  • Distribution Method : Unknown
 
  • MD5 : ba745c2c79cd2e416c1615ba37dfb540
 
  • Major Detection Name : Gen:Heur.Ransom.Imps.1 (BitDefender), a variant of Win32/Filecoder.Paradise.A (ESET)
 
  • Encrypted File Pattern : .bigbosshorse
 
  • Malicious File Creation Location : C:\Users\%UserName%\AppData\Roaming\_uninstalling_.png
 
  • Payment Instruction File : #Decryption#.txt
 
  • Major Characteristics :
     - Offline Encryption
     - Outsider Ransomware series
     - Turns off Windows Firewall (netsh advfirewall set allprofiles state off)
     - Block processes execution (agntsvc.exe, dbsnmp.exe, msftesql.exe, oracle.exe, sqlagent.exe, synctime.exe etc.)
     - Disable system restore (vssadmin.exe delete shadows /all /quiet, bcdedit /set {current} bootstatuspolicy ignoreallfailures, bcdedit /set {current} recoveryenabled no)

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