Google search engine

Google search engine detection mechanisms abuses Black Hat search engine optimization (also known as black hat SEO) is a hacking techniques used to improve rankings. For implementers, and maximum power of black hat SEO is a considerable income, such as product placement in a page "black chain", it can be redirected to a specific domain name revenue flow. Sophos global threat research director Dmitry Samosseiko wrote: "As far as we know, Google's algorithm can detect black hat in a certain extent SECO, but hacker implants when providing content to a document, this method cannot detect very strictly. Looks compared to HTML pages, Google seems to be more trusted PDF documents. In addition, compared to commercial Web pages, it is more trusted. edu or. gov Web sites. ” New method of relying on PDF PDF document attackers use forged to achieve its purpose. Compared to common HTML Web pages, Google seems to believe more in PDF, the belief that is contained in the PDF file link, and the using keyword. An attacker is using this method to manipulate Google's algorithm, with a PDF document get higher search rankings. However, the PDF document click redirect the user to a different site, the site could be used for malicious purposes (such as: malware, phishing attacks, and so on). "When you start reading the PDF when an at first glance appears to be a legitimate document will become complete. Similarly, you can clearly see that placed hyperlinks throughout a document. When when you follow these links will reveal the entire chain to Googlebot. We suspect that this technology can be used for a variety of purposes, including the distribution of malicious software. However, so far, we only see it in a marketing campaign was used to promote so-called ' binary trade agent services. ” --------------------------------》 Sslsec's Blog