What is Deface? How to prevent and overcome after being Deface

Deface Attack

 Deface is understood as one of the forms of attack on certain weaknesses of the website. Activity can come from potentially undetected issues. Through the knowledge shared by FPT Cloud below, you will have the opportunity to understand better what Deface is. Most important are the solutions to limit and fix the problem. Therefore, please follow to the end to minimize the risk of interruption during website operation.

What is Deface Attack?


Deface is defined by experts as attacks to change website content. This is done when the hacker discovers some weakness. The purpose behind it may be things you don't expect. E.g.:

  • Deface attack as a way to warn administrators that the website has a security vulnerability. The opponent wants to point out serious weaknesses that should be overcome early.
  • Deface interface attacks often come from malicious intent. Hackers want to prove themselves capable and show themselves as the ones in control.
  • When you discover the purpose of attacking Deface, you can see that the motive is rooted in hatred. The bad guy intentionally changes the content to insult the victim. In addition, it can also be information spreading false ideas about politics, religion, etc.

Whatever the purpose, attacks are still a no-no. It would help if you learned more specifically to plan prevention early.


Why does the website have Deface problem?


The risk of a website attack can come from many different reasons. However, the most common is still due to serious security weaknesses. That will be favorable for hackers to upload files to the server.


In addition, security restrictions also help bad guys gain access to the web admin page. Even if the level of safety is high, it is still difficult to avoid Deface. This situation is caused by other hosting coexisting on the hacked server.

Before seeking professional assistance, you should anticipate the following situations. Those are the situations that are close in reality and easy to get into:

  • Setting an admin password that is too weak is a mistake to avoid. Besides, you also need to pay attention to the character length, capitalization, special signs... The lack of an anti-brute force mechanism makes bad guys detect the admin password.
  • The attack can come from modules, plugins, extensions… in today's open source code.
  • Another often-forgotten situation is revealing the admin password…

It's important to understand the basics and avoid them. The technique is not difficult to implement but greatly reduces bad guys' chance of getting in.


How to detect an attack early


Normally, Deface will target the default. Some typical examples are index.php, index.html, home.html, default.html, trangchu.html… Therefore, the best way is to check these objects' operations regularly.


You need to centralize content management to know what pieces of information have changed early. However, some sophisticated tricks do not target data. At this point, you must heed warnings from website visitors or Hosting managers.

How to prevent Deface

How to proactively defend against attacks is extremely important. Usually, criminals will access contact forms, spam comments, insert malicious links, etc. Accessibility is even easier if the web has many entry points.

The tips below help keep your site protected. Difficult problems will be prevented early.


Plugin Control

A particularly vulnerable site often incorporates multiple Plugins or additional features. Research shows that WordPress sites with 6 to 10 Plugins are more susceptible to invasion than normal types. Add-ons expand the page surface, creating many loopholes. The way to limit Deface is to choose Plugins very carefully. Make sure the app provides solutions and practical value. If deactivated in the Dashboard, you must check and completely uninstall regularly. Outdated Plugins have many security limitations. The code is no longer updated, so it is easy for hackers to attack.


Limited access

Having many admins on the web will open the door for criminals to enter illegally. With sophisticated tricks, it is easy for bad actors to enter through the login page. Therefore, restricting access to the full content is essential. Weaknesses in human error, such as weak passwords, also somewhat mitigate the risk.


Scan the source code

You can check for malware on the web if you're technically savvy. In addition, you also need to be given access to the file manager. Either form provided by the domain name server or protocol can help. You perform a scan of the script and <iframe> attributes, the. Thereby making sure these elements are not infected with malicious content.


Install automatic page scraper

Even with full expertise, doing it manually takes too long. Therefore, you need an automated tool that supports fast Deface detection. Tools can monitor files and web databases. The system will promptly patch a vulnerability, automatically removing malware and spam signals when a vulnerability is found.


What to do after being attacked by Deface interface?


Once attacked, you need to ask yourself: "Why did the hacker upload the code containing the Deface page?". It is important to check the server's log information to find the answer.

You track down what the hacker did with how on the system. Once the core problem is discovered, could you find a way to patch it thoroughly?

The cost of recovering from an attack will certainly be much greater than the investment in prevention. In addition, early response planning helps reduce downtime, lost revenue, and reputation.

FPT Cloud believes that this is a real concern for any website administrator. Hope the article has helped you fully understand what Deface is and how to prevent it.

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