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module

Alpha2 Alphanumeric Uppercase Encoder

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Disclosed
N/A
Created
May 30, 2018

Description

Encodes payloads as alphanumeric uppercase 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).

Authors

pusscat [email protected]
skylined [email protected]

Platform

All

Architectures

x86

References

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_upper
    msf encoder(alpha_upper) > show actions
        ...actions...
    msf encoder(alpha_upper) > set ACTION < action-name >
    msf encoder(alpha_upper) > show options
        ...show and set options...
    msf encoder(alpha_upper) > run
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