- Distribution Method : Automatic infection using exploit by visiting website
- MD5 : 506f7fad086e8abcdc7c920ba1675f49
- Major Detection Name : a variant of Win32/Kryptik.FYIT (ESET), Ransom:Win32/Delcryset.A (Microsoft)
- Encrypted File Pattern : <Random>-<Random>.[JUCHE001@TUTANOTA.COM]
- Malicious File Creation Location :
- C:\Users\%UserName%\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\<Random>\index<Random>.htm
- C:\Users\%UserName%\AppData\Roaming\<Random>.vbs
- Payment Instruction File : #_#Where-is-my-files#_#!.rtf
- Major Characteristics :
- Offline Encryption
- Change the default values of the registry entry "HKEY_CLASSES_ROOT\mscfile\shell\open\command"
- Disable system restore (vssadmin.exe delete shadows /all /quiet) using Event Viewer (eventvwr.exe)
- Changes desktop background (C:\Users\%UserName%\AppData\Roaming\<Random>.jpg)
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