smurf attack

Experiment Introduction Experiment Series: Security Tools use Subjects: Undergraduate/specialist Information security major Related courses and majors: Linux Foundation, cyber security Experimental Category: Practical Experimental class Pre-knowledgeArmitage Basic Introduction Armitage is a Java-written Metasploit graphical interface attack software that can be used in conjunction with Metasploit known exploit to automate att

With the development of network technology in recent years, CDN has not only been used to accelerate the website, but also can protect the website from being attacked. The successful establishment of the dynamic acceleration mechanism and the intelligent sinking mechanism in the relevant node of CDN can help the web traffic distribution to each node, intelligent flow Distribution mechanism, if the CDN has been attacked by DDoS. The entire system of CDN can disperse the traffic that is attacked,

It has always been timestamp to prevent replay attacks, but this does not guarantee that each request is one-time. Today I saw an article introduced by nonce (number used once) to ensure an effective, feel the combination of both, you can achieve a very good effect. Replay attack is one of the most common ways for hackers in computer world, so the so-called replay attack is to send a packet that the host ha

This article is translated from the Microsoft blog published in the relevant articles, the original English version of the original author of copyright, hereby declare. Original: http://blogs.technet.com/swi/archive/2008/05/29/sql-injection-attack.aspx Recent trends Since the second half of last year, many sites have been compromised, and they have been injected with malicious HTML These Web applications have something in common: Programs that use classic ASP code Programs that use

Recently, some sites were found to be vulnerable to UBB Cross-site scripting attacks. Cross-site scripting attacks are rarely a significant impact on the server, but for a site, this vulnerability is too unworthy! Small, play point what dongdong come out, then change the homepage; Heavy theft of the user's cookies, even more will be g off the viewer's hard drive. A site is turned into a malicious website, who dares to come? If the station's webmaster more "blind" some, not a mess? 　　 A small p

In the previous "Java programming" build a simple JDBC connection-drivers, Connection, Statement and PreparedStatement we described how to use the JDBC driver to establish a simple connection, and realize the use of statement and PreparedStatement database query, this blog will continue the previous blog through SQL injection attack comparison statement and PreparedStatement. Of course, there are many other differences between the two, in the subseque

What is a SQL injection attack? The so-called SQL injection attack is an attacker inserting a SQL command into a Web form's input domain or a page request query string, tricking the server into executing a malicious SQL command. In some forms, user-entered content is used directly to construct (or influence) dynamic SQL commands, or as input parameters to stored procedures, which are particularly susceptibl

Extract attack fingerprints from NT web server logs (QQ: 550669) the addition of technology will never pass the black site .)When you browse a famous foreign hacker website, you will find that the steps have become the focus of debate by detecting system fingerprints to find hacker intrusion methods. Of course, I am no exception, I like this method, because it allows you to easily find the fingerprints of intruders and better learn hacker int

First round of attack:Time: around fifteen o'clock P.M.Suddenly found that the company's web server could not be accessed, attempt remote login, unable to connect, call the idc to restart the server. Immediately after the startup, log on to the system and check that the attack continues, and all 230 apache processes are in the working state. Because the server is old and the memory is only 512 MB, the system starts to use swap and the system is paused

Recently, Web SQL Injection attacks, JS scripts, and HTML scripts appear to be more intense. Many websites are plagued by such attacks. They are not immediately repaired as they do with host vulnerabilities. WEB attacks make us very inconvenient to prevent or repair them. HOOO ...... The greatest pain for a webmaster is this. How can we ensure that our passwords are strong but can always be obtained by attackers? But how can we achieve real security? First, do not associate your password with yo

A few weeks ago, someone found a new zero-time-difference Adobe Acrobat/Reader vulnerability on the Internet and immediately began to exploit it. From a technical point of view, this attack is most striking because it uses the Return-Oriented Exploitation (ROP) vulnerability) tips to avoid Windows Data Execution Prevention (DEP) security mechanism. In addition, it uses two-stage attack program code (shellco

Recently, hashtable collision attacks (HashtablecollisionsasDOSattack) have been raised, and various languages have been involved. This article combines the PHP kernel source code to discuss the principles and implementation of such attacks. Recently, Hashtable collision attacks (Hashtable collisions as DOS attack) have been mentioned, and many languages have been involved. This article combines the PHP kernel source code to discuss the principles and