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Alpha2 Alphanumeric Mixedcase Encoder

Encodes payloads as alphanumeric mixedcase text. This encoder uses SkyLined's Alpha2 encoding suite. A pure alpha encoder is impossible without having a register that points at or near the shellcode. In a default configuration the first few bytes at the beginning are an fnstenv getpc stub (the same as used in shikata_ga_nai) and thus are not alphanumeric. You can set BufferRegister for full alpha (see Encoder options for details).

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Module Name



  • pusscat <pusscat [at]>
  • skylined <skylined [at]>


  • platform


  • x86



Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':

msf > use encoder/x86/alpha_mixed msf encoder(alpha_mixed) > show options and set options... msf encoder(alpha_mixed) > run