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GhostDNS: The New Malware in Town An Insight into GhostDNS Malware
The malware is an amalgamation of complicated attack scripts, capable of hijacking router settings and swapping them with a substitute DNS service. From here, the codes take traffic to cloned yet malicious landing pages having all major online services and collects login details along with some vital credentials of users.
DNSChanger SystemThe DNSChanger module is the major part of GhostDNS. The hacker exploits three DNSChanger sub-modules to launch an attack against routers on both intranet and internet networks. This module can be divided into three different formats i.e. into Python & JavaScript, Shell Code, and PHP programming languages.
Among three languages, the most common is PyPhp (Python/PHP) version that has been installed on more than 100 servers, including to Google Cloud. It consists of Web API that regulates program, along with a scanner and an attack module that encompasses 69 attack scripts for 47 firmware and devices.
How Does It Work?Now, coming to GhostDNS attack procedure, which is launched on four levels. First, the Web Admin System of this malware glance over the internet for vulnerable accounts and devices. Next, this step is followed by creation of fake landing page via DNSChanger and meanwhile, RougeDNS redirects users to phishing websites.
According to the experts of Netlab, hackers use remote access exploits to deliver the payload and it has the ability to launch more than 100 attack scripts to at least 80 routers at the same time. The intensity of GhostDNS attack depends on the number of vulnerable routers that can be fetched. Here, vulnerable routers are referred to DNS of routers that can be easily hacked.
Once the hacker has all credentials about your router, it creates a trap for users. Next time, when the user visits the bank online, it lands to a fake yet copied page of the bank and they end up losing all information and cash. But how can we avoid this situation?
Prevention Is Better Than CureThis malware has the ability to completely disable online system, thanks to its various attack vectors and automatic adoption of the attack process. Therefore, it is recommended to upgrade your broadband connectivity and secure your router system by setting complicated passwords. Do not save your password online and do not set similar passwords for every account.
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