#Dns worm virus series

When residents of the said country attempt to access a government-blocked site, theyвЂ™re automatically redirected elsewhere (to an вЂњapprovedвЂќ site of course). Some countries also use their own modified DNS servers to limit the websites available in their borders. Some ISPs will run modified DNS servers that can modify your traffic to support their own business objectives. Unfortunately, this isnвЂ™t just done by criminals. In either case, youвЂ™re essentially being conscripted into aiding and abetting a fraud against ad networks. You could be conscripted in aiding and abetting fraud against ad networks. They can target the redirection to affect just the ads that get loaded on legitimate websites. Some online criminals will hijack your connection to send you to pages that are loaded with advertisements so they can charge the ad networks for the impressions. The same could happen for any website you have credentials for. You log in like normal, without noticing any red flags, only to share your account details with a thief. Except now that your DNS settings have been hijacked, you get sent to fake version of your bank. Phishing sites that can steal your passwordsД¬onsider this scenario: you type in your bankвЂ™s domain name and hit вЂњenter.вЂќ Your computer sends off the domain name. Why DNS Hijacking is dangerousД¬ompromised DNS settings leave you open to different kinds of dangers. If those settings have been compromised, then your computer could be asking directions from a server that has been set up to provide it with a different set of IP addresses than the ones you intended вЂ“ IP addresses that can, and often do, play host to phony websites. Your computer could be asking directions from a server set up to send you to phony phishing websites. Those settings tell it which servers to connect to to get the IP addresses it is looking for. How DNS Hijacking worksДЄ well functioning computer will have DNS settings that are usually allocated by your Internet Service Provider, or is setup to use one by Google or ICANN. Why? Because this is where the hijacking comes into play. Now, itвЂ™s crucial that your computer reach out to a legitimate DNS server. Once it has found the corresponding, numerical address, it sends this information back to your PC, and connects you to the website youвЂ™ve requested. This serverвЂ™s only job is to match URLs to IP addresses. So when you type in an address such as, for example, your computer gets in contact with a DNS server to collect the websiteвЂ™s IP address. This system matches the web addresses we are used to with the IP addresses of the servers that host the website. ItвЂ™s to make the web truly useable by humans вЂ“ not just machines вЂ“ that the Domain Name System (DNS) was invented. Obviously, it wouldnвЂ™t be practical to type in 123.24.23.1 (not a real IP address) every time we wanted to visit a website. This is the real address that the machines that connect to the internet use to reach out to each other.

#Dns worm virus series

Traditionally, this is represented by a series of numbers separated by decimal points.

ItвЂ™s easy to forget that everything we access online all lives on some form of computing hardware somewhere, whether it's your phone, your PC, your router, or the army of servers that help run giant sites like YouTube or Amazon.Д®very single one of those devices connected to the internet has what is called an Internet Protocol (IP) address. Familiar with the process of visiting web pages? ItвЂ™s a bit more complex than simply typing a domain name like in your browser.