Shocked: 2/3 hacked websites hide the back door

Guide

Security experts at Sucuri, a cyber security firm, said they found 68% of the hacked sites had hidden backdoor backdoor scripts in their investigations. These backdoor scripts provide intruders with access to the secret channel again, and even if the system administrator changes the password or applies a security patch, the backdoor will remain as long as the entire system is not completely cleaned up.

From their published site by the Black report Q1 version can be seen, the total sampling of 11,485 sites 4,900 sites found the back door, in these compromised sites, the backdoor is the most serious problem, followed by malicious code (through the browser-side code to mount the horse attack), accounting for 60%. The third place is seo garbage (seo spam), about 32% of the site has the problem, SEO garbage will usually be secretly embedded in the page, the visitors can not see, and for the search engine crawler is visible .

SEO garbage can help malicious attackers to improve the search engine rankings of their sites, and for infected sites, will be punished by the search engine and ranking decline. These beneficial malicious attackers usually put SEO trash in the source code of the infected site, in the database, or through the. htaccess redirection implementation. In most cases, SEO spam is the content of pharmaceuticals, adult content, or online games.

Compared with last year, the back door script ratio decreased slightly, SEO garbage has a small increase, and malware infection compared with the previous year, the largest increase from 41% in 2014 to 2016 years of 60%! In contrast, the backdoor script from 59% in 2014 to 2015 of 73%, now fell back to 68%,seo garbage from 20% to 28%, to 2016 years to increase to 28%.

Shocked: 2/3 hacked websites hide the back door