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Learn Ethical Hacking from Scratch

You're reading from   Learn Ethical Hacking from Scratch Your stepping stone to penetration testing

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Product type Paperback
Published in Jul 2018
Publisher Packt
ISBN-13 9781788622059
Length 564 pages
Edition 1st Edition
Languages
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Author (1):
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Zaid Sabih Zaid Sabih
Author Profile Icon Zaid Sabih
Zaid Sabih
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Table of Contents (24) Chapters Close

Preface 1. Introduction FREE CHAPTER 2. Setting Up a Lab 3. Linux Basics 4. Network Penetration Testing 5. Pre-Connection Attacks 6. Network Penetration Testing - Gaining Access 7. Post-Connection Attacks 8. Man-in-the-Middle Attacks 9. Network Penetration Testing, Detection, and Security 10. Gaining Access to Computer Devices 11. Scanning Vulnerabilities Using Tools 12. Client-Side Attacks 13. Client-Side Attacks - Social Engineering 14. Attack and Detect Trojans with BeEF 15. Attacks Outside the Local Network 16. Post Exploitation 17. Website Penetration Testing 18. Website Pentesting - Information Gathering 19. File Upload, Code Execution, and File Inclusion Vulnerabilities 20. SQL Injection Vulnerabilities 21. Cross-Site Scripting Vulnerabilities 22. Discovering Vulnerabilities Automatically Using OWASP ZAP 23. Other Books You May Enjoy

Maintaining access by using simple methods

In all of the examples that we've seen so far, we would lose our connection to the target computer as soon as the target user restarted the computer, because we used a normal backdoor, and once the computer restarted, that backdoor would be terminated, the process would be terminated, and we would lose our connection. In this section, we will discuss the methods that will allow us to maintain our access to the target computer, so that we can come back at any time and regain full control over the computer. There are a number of ways of doing this. The first one is by using Veil-Evasion; we can use an HTTP service or a TCP service instead of the HTTP backdoor that we created.

Let's look at an example. If we use Veil-Evasion and run the list command, we will see that at the numbers 6 and 8, we have service backdoors, as shown in...

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