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$=${$}[$]; $($); Actually some time ago I found some piece of alien PHP code (a backdoor) in my server, and I couldn't understand it! I did't know the $($); sy
by fdomingues 9y ago
$=${$}[$]; $($);
Actually some time ago I found some piece of alien PHP code (a backdoor) in my server, and I couldn't understand it! I did't know the $($); syntax.
After searching for that and not finding anything I discovery that exist one special Unicode character that is invisible.
Full code here:
https://imgur.com/a/Cggdx https://imgur.com/a/Cggdx