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BTCWare Ransomware (.[decryptorx@cock.li]-id-<Random>.wyvern)

  • Distribution Method : Unknown
 
  • MD5 : e6a91b479e03c538e7111d9f8265a40b
 
  • Major Detection Name : Gen:Variant.Ransom.BTCWare.34 (BitDefender), Ransom.BTCware (Norton)
 
  • Encrypted File Pattern : .[decryptorx@cock.li]-id-<Random>.wyvern
 
  • Malicious File Creation Location : C:\Users\%UserName%\AppData\Roaming\HELP.hta
 
  • Payment Instruction File : !FILES ENCRYPTED.txt / HELP.hta
 
  • Major Characteristics :
         - Offline Encryption
         - Crptxxx / Gryphon / Master Ransomware series
         - Disable system restore (vssadmin.exe Delete Shadows /All /Quiet, bcdedit.exe /set {default} recoveryenabled No, bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures)
         - Automatically reboot Windows after file encryption is complete

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