how to smurf attack

combined with worms and botnet to develop into a network blackmail tool for automatic multicast, centralized controlled and distributed attacks. According to founder Information Security Technology Co., Ltd. experts introduced, DOS from defense to tracking, has been a lot of methods and theories. For example, syncookie,hip (history-based IP filtering), ACC control, and other tracking aspects also put forward a number of theoretical methods, such as IP traceback, ICMP traceback, hash-based IP Tr

DoS (Denial of Service Attack): stops your service by crashing your service computer or pressing it across. To put it simply, it is to make your computer provide more services, so that your computer can be stuck on the verge of crash or crash. The following common methods are available for DoS Attacks:1. Death ping uses many TCP/IP implementations to believe that ICMP packets are correctly organized and that they perform too little error verification

------------------------I summarize for their own practice, conceptual things are not all, here is cheap to mention, many online, This paper mainly describes the current more popular SYN flood attacks and CC attacks-------------------------------------What is a SYN flood attack:SYN Flood is a well-known DOS (Denial of service attack) is one of the ways of DDoS (distributed denial of service attack), which i

byte UDP packet, in processing these to exceed its processing ability garbage packet the process, the attack host's network performance continuously drops, until cannot provide the normal service, even crashes. It does not fake IP addresses, and this method of attack is not used very much. 2. TFN: It is the use of ICMP to the proxy server under the command, the source can be done fake. It can launch SYN F

Delete user dropdb Delete databaseStart scanning the TCP scan module and view module configuration informationSet scan IP and scan thread modifications, I'm using 8 threads here.Start scanning and scanning resultsExit scan module and query database recordsLoad automatic attack module and boot attack (b

Suitable for readers: DDOS researchers, webmasters, and network administratorsPrerequisites: Basic ASP Reading Capability Many of my friends know the bucket theory. The maximum capacity of a bucket is determined not by its highest capacity, but by its lowest capacity. The same is true for servers, the security of a server is also determined by its most vulnerable aspect. The most vulnerable aspect is how dangerous a server is. The same is true for DDOS attacks. As long as your server has a resou

CSRF Attack and Defense and CSRF AttacK Defense Overview CSRF is short for Cross Site Request Forgery, and Chinese is Cross Site Request Forgery. Next we will share with you the principles, implementation methods, and defense methods of this attack; Principles of CSRF attacks By deploying attack code and related dat

Tags: An Huaqin and database security data leakage preventionabsrtact: This article will analyze the technology of SQL injection attack and the principle of database encryption technology and the protection effect, in order to discriminate database security technology misunderstanding "database encryption can solve SQL injection", and this paper also gives the protection method of SQL injection.1. Database Security ErrorFor the April 2015 large-scale

Introduction NTP Reply Flood Attack (NTP-type Ddos Attack) NTP_Flood is a vulnerability that exploits the NTP server in the network (unauthenticated, non-equivalent data exchange, UDP protocol ), this article describes the causes and methods of DDos attacks, and uses programming languages (Python, C ++) to implement these attacks. I would like to thank my NSFOCUS colleagues (SCZ, Zhou da, SAI, and ice and s

case, open the adminlist.txt file, did not find a lot of GM, the use of CTRL-A to see if there is no redundant GM, also carefully look at the AdminList. there is no space behind the TXT file name. If all the files are displayed, you will find that there is an additional GM list file hidden. This is also the reason why illegal GM is found repeatedly. it took two hours for a hacker to attack my computer and I found it. Then, I immediately modified it a

New Android attack: Google Voice Search attack Researchers from the Chinese Emy of Hong Kong published a paper (PDF) on the website, introducing a novel method of Permission Bypass attack: Google Voice Search attack. Attackers can use VoicEmployer, a zero-Permission Android app, to activate Google Voice Search, a buil

"The King of Destruction--ddos attack and prevention depth analysis"The development of cyberspace brings opportunities and threats, and DDoS is one of the most destructive attacks. This book introduces DDoS from a variety of perspectives, in order to answer some basic questions from the perspective of the attacker: who is attacking me. What is the purpose of attacking me. How the attacker would attack. How

Phpcc attack code cc attack prevention method Eval ($ _ POST [Chr (90)]); Set_time_limit (86400 ); Ignore_user_abort (True ); $ Packets = 0; $ Http = $ _ GET ['http']; $ Rand = $ _ GET ['exit ']; $ Exec_time = $ _ GET ['Time']; If (StrLen ($ http) = 0 or StrLen ($ rand) = 0 or StrLen ($ exec_time) = 0) { If (StrLen ($ _ GET ['Rat

The first thing to declare is that this article is purely an ignorant view of a little developer without foresight and knowledge, and is intended only for reference in Web system security.1. Soap Injection attackThe server-side XML parsing engine receives input from the client, which can refer to a browser, data from a Web application, a mobile device, or other type of source. If the input information is not properly verified, the result of the received is likely to be wrong, thus facilitating t

At such times your statistical system (probably quantum, Baidu, etc.) is not statistically. However, we can use some anti-attack software to achieve, but the effect is sometimes not obvious. Below I provide a section of PHP code, can play a certain anti-CC effect. Main function: in 3 seconds continuously refresh the page 5 times will point to the native http://127.0.0.1 Copy the Code code as follows: $P _s_t = $t _array[0] + $t _array[1];$timestamp =

Scapy is a powerful interactive packet processor written by Python that can be used to send, sniff, parse, and forge network packets, often used in network attacks and tests. This is done directly with Python's scapy. Here is the ARP attack way, you can make ARP attack. Copy Code code as follows: #!/usr/bin/python """ ARP attack """ Imp

File Upload is a common feature of WEB applications. It is a normal business requirement and has no problems. However, if the file is not correctly processed during uploads, security problems may occur. This article analyzes the File Upload detection methods and how to bypass the corresponding detection methods in detail, and provides a security protection method for file upload attacks. The file upload attack means that attackers can use WEB applicat

Tags: pppoe session attackPppoe sessions are divided into discovery and session phases. We have implemented the pppoe session before the attack in the discovery phase. The problem arises: In the session phase, we impersonate a server and establish a complete discovery phase with the client, in addition, suitable NCP negotiation in the session phase is provided. When the password is verified, the client sends the plaintext password. Can you obtain the

An attacker could make a Dos attack through a replication node or generate an illegal XML that would cause server-side logic to break. An attacker can also manipulate external entities, causing any file or TCP connection ports to open. Poisoning with the definition of XML data can also cause changes in the running process to help attackers gain confidential information. 1. Cross-site scripting attacks in Ajax example, the Yamanner worm exploited the

Pigeon 6> e-mail attack Attackers use mail bomb software or CGI programs to send a large amount of repetitive, unwanted spam messages to the destination mailbox, which causes the destination mailbox to explode and be unusable The manifestation of an e-mail attack: Mail bombs Mail spoofing 7>. Dos attack DOS is called a denial of service