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CryptoJoker Ransomware (.fully.cryptojoker / .partially.cryptojoker)

  • Distribution Method : Unknown
  • MD5 : 1917d834fc947979ccc849ae74b60ce9
  • Major Detection Name : Trojan.Ransom.CryptoJoker (ALYac), a variant of MSIL/Filecoder.CryptoJoker.C (ESET)
  • Encrypted File Pattern : .fully.cryptojoker / .partially.cryptojoker
  • Payment Instruction File : CryptoJoker Recovery Information.txt
  • Major Characteristics :
     - Offline Encryption
     - CryptoNar / ExecutionerPlus / JokerHourse Ransomware series
     - Encrypts ".md, .txt" files and renames file with extension ".fully.cryptojoker", while all other extension files are encrypted with extension ".partially.cryptojoker", where partial 1,024 bytes of files are encrypted.