c100 – Carnivore

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c100 – Carnivore

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Read the file!

 

Solução

Baixe o arquivo .tar.gz e descompacte.

Trate se de um arquivo texto.

Vamos analisar o arquivo com o HexEditor:

c100

Logo vemos um texto formado por apenas 20 e 09.
Convertendo para binário o “20” em “0” e “09” em “1”

Obtemos o seguinte binário:

0 1 0 0 1 1 1 1 0 0 1 0 0 0 0 0 0 1 1 0 0 0 1 1 0 1 1 0 0 0 0 1 0 1 1 1 0 0 1 0 0 1 1 0 1 1 1 0 0 1 1 0 1 0 0 1 0 1 1 1 0 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 0 0 1 0 0 1 1 0 0 1 0 1 0 0 1 0 0 0 0 0 1 1 0 0 0 0 1 1 1 0 1 0 1 0 0 1 0 0 1 0 0 0 0 0 0 1 1 0 1 1 0 1 0 1 1 1 0 1 0 1 0 1 1 0 1 0 0 1 0 1 1 1 0 1 0 0 0 1 1 0 1 1 1 1 0 0 1 0 0 0 0 0 0 1 1 0 1 1 0 0 0 1 1 0 1 0 0 1 0 1 1 0 1 1 0 1 0 1 1 0 1 0 0 1 0 1 1 1 0 1 0 0 0 1 1 0 0 0 0 1 0 1 1 0 0 1 0 0 0 1 1 0 1 1 1 1 0 0 1 0 1 1 0 0 0 0 1 0 0 0 0 0 0 1 1 1 0 0 0 0 0 1 1 1 0 0 1 0 0 1 1 0 0 1 0 1 0 1 1 0 0 0 1 1 0 1 1 0 1 0 0 1 0 1 1 1 0 0 1 1 0 1 1 0 0 0 0 1 0 1 1 0 1 1 0 1 0 1 1 0 1 1 1 1 0 1 1 1 0 0 1 1 0 0 1 0 0 0 0 0 0 1 1 0 1 1 0 1 0 1 1 0 1 1 1 1 0 1 1 0 1 1 1 0 0 1 1 0 1 0 0 1 0 1 1 1 0 1 0 0 0 1 1 0 1 1 1 1 0 1 1 1 0 0 1 0 0 1 1 0 0 0 0 1 0 1 1 1 0 0 1 0 0 0 0 0 1 0 1 0 0 1 1 0 1 1 1 0 1 1 0 0 0 0 1 1 1 0 1 0 0 0 1 1 0 1 1 0 1 1 1 1 0 0 1 0 0 0 0 0 0 1 1 0 0 0 0 1 0 1 1 1 0 0 0 0 0 1 1 0 0 1 0 1 0 1 1 0 1 1 1 0 0 1 1 0 0 0 0 1 0 1 1 1 0 0 1 1 0 0 1 0 0 0 0 0 0 1 1 0 0 0 0 1 0 1 1 1 0 0 1 1 0 0 1 0 0 0 0 0 0 1 1 0 0 0 1 1 0 1 1 0 1 1 1 1 0 1 1 0 1 1 0 1 0 1 1 1 0 1 0 1 0 1 1 0 1 1 1 0 0 1 1 0 1 0 0 1 0 1 1 0 0 0 1 1 0 1 1 0 0 0 0 1 1 1 0 0 0 0 1 1 1 0 1 0 0 1 1 1 1 1 0 0 0 0 1 1 1 0 1 1 0 1 0 1 0 1 1 0 0 1 0 1 0 1 1 1 0 0 1 1 0 0 1 0 0 0 0 0 0 1 1 0 0 1 0 0 0 1 1 0 0 1 0 1 0 0 1 0 0 0 0 0 0 1 1 0 0 1 0 0 0 1 1 0 0 0 0 1 0 1 1 0 0 1 0 0 0 1 1 0 1 1 1 1 0 1 1 1 0 0 1 1 0 0 1 0 1 1 0 0 0 0 1 0 0 0 0 0 0 1 1 0 1 1 0 1 0 1 1 0 0 0 0 1 0 1 1 1 0 0 1 1 0 0 1 0 0 0 0 0 0 1 1 0 0 0 0 1 0 1 1 1 0 0 1 1 0 0 0 0 1 0 1 0 0 1 1 1 0 1 0 0 0 1 1 0 0 1 0 1 0 1 1 0 1 1 0 0 0 1 1 0 0 1 0 1 0 1 1 0 0 1 1 0 1 1 0 0 0 0 1 1 1 0 1 1 0 1 0 0 0 1 1 0 1 1 1 0 0 1 1 0 1 0 0 1 0 1 1 0 0 0 1 1 0 1 1 0 0 0 0 1 0 1 1 1 0 0 1 1 0 0 1 0 0 0 0 0 0 1 1 1 0 1 0 0 0 1 1 0 0 0 0 1 0 1 1 0 1 1 0 1 0 1 1 0 0 0 1 0 1 1 0 0 0 0 1 1 1 0 1 0 1 0 0 1 0 1 1 0 1 1 0 1 0 0 1 0 1 1 1 0 0 0 0 0 1 0 1 0 0 0 0 0 1 0 10

Convertendo o binário para ascii obtemos a flag.

Flag

O carnivore é muito limitado, precisamos monitorar não apenas as comunicações de dados, mas as telefônicas também.

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