The fastest and most effective iFrame Solution

Source: Internet
Author: User
Tags sql injection attack

When a website becomes a target of attacks that hackers love and a springboard for spreading malicious programs, the risks and losses suffered by enterprises will expand, and the website users will also be affected.
At present, Google has begun to add a reminder string in the search results to mark the Hacked websites, which is more likely to cause the loss of users for enterprises.

How to survive in this wave of "network attack/harm", the most important thing is to face up to the seriousness of the problem and improve security awareness in the website development and maintenance phase. In addition, you can import automation tools to improve security. If the security budget is limited, at least find the bottom line of security protection that can be loaded by the enterprise to ensure the security of the enterprise's websites and users.

Governance: monitors webpage changes and responds immediately
Hackers have many ways to attack websites. However, in order to modify webpages for malicious programs, the website must be modified to achieve the goal, therefore, web page monitoring is a way for IT personnel to respond to hacker attacks.

When a hacker modifies a webpage, the size of the file and the last modification time of the webpage will be affected. Therefore, IT personnel can write their own programs, check whether the size or date of the last file modification on the website is consistent with that on the online file. Once there is any discrepancy, an exception occurs, in this case, you can further check whether the file has an unknown iframe or JavaScript syntax pointing to an external website to determine whether the file has been attacked by hackers. In the event of an attack, you must first save the evidence and restore the website to the status before the invasion.

There are products on the market that provide automated solutions for website monitoring and recovery actions. Such products can usually implement real-time monitoring and reporting mechanisms. When a website is tampered, immediately restores the original page to block attack methods that implant program code on the web page, and the intrusion records are retained. Web page monitoring and restoration products can also protect files on file servers. If hackers attempt to delete or change files, the system will recover the files in real time.

The prices of such products are usually from tens of thousands to tens of thousands of yuan. The products of zi'an are relatively low, which is more affordable for small enterprises, but what it can do is to keep the webpage from being tampered with and changed. At first glance, it successfully defended against the current wave of cyberattacks. However, it is only a cure.

Although hackers cannot tamper with the webpage content, after all, they have entered the room and obtained the permission to modify the webpage. This means that hackers can also take data away or do not use the method of modifying the webpage program code, bypass the SQL Injection attack method to take away the content in the database.

Therefore, no matter whether an enterprise writes programs or uses automated products to monitor and restore webpages, it must understand that its restriction lies in providing negative solutions and only protecting webpages, however, if the vulnerabilities attacked by hackers are not found and repaired, the attacks will still occur.
Parse iFrame Attack Methods
Hackers can download malicious programs to their computers without warning, for example, stealing accounts, passwords, or inserting zombie programs.
Using iframe in HTML syntax is a very common method. Iframe is designed to enable the designer to embed a page box in a webpage, which can load another page. In this way, a more elastic web page function can be designed.
However, when iframe is put into the hands of hackers, there is a different way of playing. When the iframe attribute is set to "0", the called page is executed, but not displayed on the webpage. This kind of method is like putting on a shadow for a Web page. When a user browses a hacked website, the user executes the syntax on the invisible page without knowing it.
Because the iframe method is too popular and has obvious recognition features, there is a variant method that uses JavaScript syntax to rewrite the call method and then mix it into the original JavaScript on the webpage, increase the difficulty of mining.
Generally, if a browser sets an appropriate security level, a malicious program will receive a warning message during download or execution. However, if a hacker exploits a security vulnerability, you will have the opportunity to install malicious programs without any inquiry.
Compared with self-built websites, hackers are easy to detect. Hackers will select large traffic or well-known websites as the source of the spread, with a high success rate. Hackers may try to intrude into various channels, such as defects in Web applications or unupdated vulnerabilities. Google's powerful search capabilities allow hackers to obtain more websites that are not properly configured. Through some keywords, they can often find out system information or possible vulnerabilities, this allows hackers to gain the permission to modify webpages.
Therefore, when a company discovers that a website is implanted with a malicious program, it is already the last stage of hacker attack. It is only the most obvious indication on the surface. In fact, there must be a vulnerability in the system or website application, allows hackers to easily modify webpages.

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.