Decryption black & drainage II: Baidu spider hijacking, common black hat seo techniques

A lot of people in charge of the site, all you want your site has a lot of traffic, after all, with the flow, in order to increase sales, so a lot of people through some unconventional means, short term, get a lot of traffic, some of whom are also attractive. Here warn you: If you do not have a very professional technical aspects of the site, or give up the idea of it, the so-called industry specializing in surgery. But do not lose heart, today I tried to share those common black hat techniques and solutions.
Common black hat techniques: Spider hijacking

When you Baidu search keywords into the search results page, click on certain sites, found jump to a number of disparate sites, but normally enter the URL into the site is normal. This is the so-called spider hijacked.
Spider hijacking principle: Scanning has been collected by *** related software (such as webshell) good and there are loopholes considerable traffic to your site, get permission, implanted *** program in the server or add hijack the code within the page code, then according to Web site visitors to nature, gives a different page or request, such as a normal user would return to the original page, when found to be walking spider and they will be given a page has been tampered with.
Spider hijack what use is it, I have summarized, roughly the following aspects

1, hijacking traffic
when users enter the URL directly in the browser, the page showed normal, but if the
open this Web page search results page will jump directly to other website.
2, snapshots hijacking
when a user opens in a browser or search results page opens, return to the page are the original page, we generally find that not any different, except for viewing snapshots can be found tricky for snapshots has been modified. Generally not attentive owners simply can not find an analog test or grab a Baidu webmaster platform Webmaster Tools crawl, then return to the previous page source code and source code the discrepancy.
3, hijacking traffic areas judged
according to the relevant information to determine the owners in their respective districts, addition to this area, the search results page click to jump, so owners in the region search or, to view snapshots or, almost do not see anything strange but the rest of the search traffic have been transferred away.
So how do you prevent spider hijacked it?
1, do security work server, ftp password change on a regular basis.
2, if the website traffic decreased significantly, looking professional and technical personnel to detect.
Spider was how to solve the hijacking
Again, industry specializing in surgery, do not use your hobbies, take the challenge to her profession. The only thing you can do is to find professionals to solve the problem.