Rootkits, are malicious programs which can create problems for your VPS or dedicated servers if they got the way to get themselves into your server. Usually rootkits are more prone to linux OS but can also affect Windows based dedicated servers.
As a webmaster you should try to implement latest security patches for your server and should update server security as frequently as possible so that you can keep your server away from such rootkits application which may create huge problems for your server and may affect it performance.
Usually all rootkits applications enters your machine/server through any security hole which is present in your website, your database or any other third party applications installed on your server which cannot be detected by any type of anti-virus softwares, applications.
Such rootkit applications are not detected by most of the security applications as they have their place in kernel of affected linux server, thus they remain undetected as they are run as ‘root’ or as administrator and remains undetected.
If you want to keep such malicious programs away from your server you need to concentrate more on your server security and should have latest anti-virus application and rootkit hunting software running smoothly on your server.
Hackers usually use rootkits to install certain malicious programs using which they can run their own program/ malicious programs using your dedicated/VPS servers resources which may create problems for you and will end up your server security issues.
Rootkits can be very dangerous and if your server has been infected by rootkit then you cannot remove it as they embedded within your kernel or root of your operating system of your dedicated server. Only solution for your rootkit infected server is reinstalling the operating system of your VPS or dedicated server.
Thus, here comes the phrase “ Prevention is better then cure “
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