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Cerber Ransomware (_R_E_A_D___T_H_I_S___<Random>_.hta / .txt)

  • Distribution Method : Automatic infection using exploit by visiting website
  • MD5 : 9dd52ccbd52ef67e490fd85320f4a043
  • Major Detection Name : Trojan/Win32.Cerber.R200901 (AhnLab V3), Trojan-Ransom.Win32.Zerber.ecrd (Kaspersky)
  • Encrypted File Pattern : <Random Filename>.<4 Digits Random Extension>
  • Malicious File Creation Location : C:\Users\%UserName%\AppData\Local\Temp\<Random>.exe
  • Payment Instruction File : _R_E_A_D___T_H_I_S___<Random>_.hta / _R_E_A_D___T_H_I_S___<Random>_.txt
  • Major Characteristics :
         - Offline Encryption
         - Target files encrypted starting from offset 0x700
         - Encryption targets user created folder in C drive root, My Documents, Desktop, additional partitions, USB Drives
         - Generates payment instrucition files in 13 languages including Korean and English
         - Changes desktop background(C:\Users\%UserName%\AppData\Local\Temp\tmp<Random>.bmp)