dns poisoning attack

hundreds of thousands of users are redirected to a trap site set up by hackers by embedding a server with a cache poisoning attack. The severity of this issue is related to the number of users who use domain name requests. In this case, hackers who do not have a variety of technologies can cause a lot of trouble, so that users can tell others their online banking account passwords and online game account p

This series will discuss the most commonly used form of man-in-the-middle attack, including ARP cache poisoning attacks (ARP caches poisoning), DNS spoofing (DNS Spoofing), HTTP session hijacking, and so on.　　IntroductionThe most common network

DNS cache poisoning attacks refer to attacks that trick the DNS server into believing the authenticity of forged DNS responses. This type of attack aims to redirect victims who depend on this DNS server to other addresses, for exa

The DNS Cache vulnerability is a security system that is vulnerable to the Internet in our applications. The root cause of poor security lies in design defects. By exploiting this vulnerability, users may not be able to open the webpage. The most important is phishing and financial fraud, which can cause huge losses to victims. DNS Cache vulnerabilities to learn about cache

I just saw an original dns poisoning attack on ios on skey. It's good. mark it; First, we recommend a software source for Cydia: ininjas.com/repo.You can find some basic network security tools, such as dsniff, set, msf, nmap...You can check the details of DNS poisoning and e

: query: demonalex.3322.org INAug 06 02:27:31. 529 queries: client 192.168.20.197 #13942: query: demonalex.3322.org INAug 06 02:27:32. 043 queries: client 192.168.20.197 #13943: query: demonalex.3322.org INAug 06 02:27:32. 554 queries: client 192.168.20.197 #13944: query: demonalex.3322.org INAug 06 02:27:33. 034 queries: client 192.168.20.197 #13945: query: demonalex.3322.org INAug 06 02:27:33. 511 queries: client 192.168.20.197 #13946: query: demonalex.3322.org INAug 06 02:27:33. 972 queries:

record, it will switch to the cache area of the server to check whether the data exists. When the cache area cannot be found, it will ask the nearest name server for help in searching for the IP address of the name, the query results of the same action are also displayed on the other server. When the query results are found, the server that originally requested the query will be returned. After receiving the query results from the other DNS server, f

In the previous article (man-in-the-middle attack ARP poisoning), we discussed dangerous hacker attacks and practical ARP poisoning principles. In this article, I will first discuss how to detect and prevent ARP poisoning (or ARP spoofing) attacks, and then I will review other man-in-the-middle attacks-

I have understood this attack for a long time and do not understand what it means to "rebind. After A little understanding, I found that the attack principle is literal. Refresh the DNS A record and bind it to another address. In the following section, I reference the note of a fairy "To mount a DNS rebinding

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

send a self-constructed DNS response packet to the target. After the other party receives the DNS response packet, it is found that all the IDs and port numbers are correct, that is, the domain names and corresponding IP addresses in the returned data packet are saved in the DNS Cache table, and when the real DNS resp

server. Another clever approach is to use DNS. There are many network vendors that have their own DNS servers, and allow anyone to query, and even some are not their customers. and general DNS uses UDP,UDP is a connectionless transport layer protocol. With the above two conditions as the basis, it is very easy for those attackers to launch a denial-of-service

Event Causes and analysis This incident is a linkage event, mainly divided into two parts: 1, the Dnspod site's DNS server by more than 10Gbps traffic DDoS attack the suspect because it is the competition between the network game between the business, causing a server operators launched thousands of zombie hosts to Dnspod launched a DDoS flood attack, Causes the

Name Service provider 114DNS found a "monitoring data anomaly." Then, the security team successfully traced to launch this DNS hijacking attack "culprit", and the first time the attack to the Tp-link and other domestic mainstream router manufacturers. 114DNS and Tencent computer stewards say a new round of DNS phishi

This article will introduce several main DNS attack methods. I hope this technology will help you. Use DNS servers for DDOS attacks The normal recursive query process on the DNS server may be exploited as a DDOS attack. Assume that the attacker knows the IP address of the at

Like smurf Currently, many DNS servers support EDNS. EDNS is an extended DNS mechanism, which is introduced in RFC 2671. Some options allow the DNS to reply to more than 512 bytes and still use UDP, if the requestor points that it can handle such a large DNS query. Attackers have used this method to produce a large am

IP 92. XX. xx.148.20.50> XX. XX.53: 23600 + [1au] ANY? Isc.org. (36) 07:39:53. 291822 IP 158. XX. XX.238.13616> XX. XX.53: 56854 + [1au] ANY? Isc.org. (36) 07:39:53. 291850 IP 158. XX. XX.238.13616> XX. XX.53: 56854 + [1au] ANY? Isc.org. (36) 07:39:53. 291860 IP 158. XX. XX.238.13616> XX. XX.53: 56854 + [1au] ANY? Isc.org. (36) 07:39:53. 291869 IP 158. XX. XX.238.13616> XX. XX.53: 56854 + [1au] ANY? Isc.org. (36) 07:39:53. 291877 IP 92. XX. XX.148.56278> XX. XX.53: 23600 + [1au] ANY? Isc.org. (

Recently in doing OpenWrt platform, DNS use is DNSMASQ, but through the board to the Internet, the PC's DNS is set to board the time, found that Baidu, etc., but the company mailbox can not open. The domain name of the company mailboxxx-xx-notes.xxx.com.cn form, so the DNSMASQ log opened to see the next. Finally found the problem.How to open DNSMASQ log1. Find/etc/dnsmasq.confIn the OpenWrt system, dnsmasq.

-refresh times$uri = $_server['Request_uri']; $checkip=MD5 ($IP); $checkuri=MD5 ($uri); $yesno=true; $ipdate=@file ($file);foreach($ipdate as$k =$v) {$iptem= substr ($v,0, +); $uritem= substr ($v, +, +); $timetem= substr ($v, -,Ten); $numtem= substr ($v, About); if($time-$timetem $allowTime) { if($iptem! = $checkip) $str. =$v; Else{$yesno=false; if($uritem! = $checkuri) $str. = $iptem. $checkuri. $time."1";ElseIf ($numtem 1) .""; Else { if(!file_exists ($fileforb

After a series of recent retaliatory attacks caused by the closure of the file sharing website Megaupload, Anonymous's Denial-of-Service "Cannon" has greatly reduced the number of shells fired later. Although Anonymous members intend to break the INTERPOL website in February 28 (mainly through the online version of the "low-track Ionic Gun" Denial-of-Service tool ), moreover, some vulnerable websites (including most recently websites affiliated with Panda Security) have been destroyed, and the