> On Mon, 2018-02-05 at 10:05 +0000, Stefan Wolber wrote:
> > Sorry to molest you but I want my system to be malware free. I
> > searched for this topic about 2 hours in the internet but couldn´t find an
> answer.
> > I have a linux server at server4you (administration by Plesk) with
> > debian wheezy (7) and rkhunter 1.4.4.
> > I am little bit confused why rkhunter is skipping the checks for kernel
> > symbols like “Checking for kernel symbol 'heroin'             [ Skipped ]”.
> > rkhunter does that numerous times.
> >
> This is because rkhunter cannot find either the /proc/ksyms or
> /proc/kallsyms file. 

That is right, both files are missing. 
My server is a virtual server. The reason for disabeling the os_specific test 
(please see below) is that there is no content in /proc/modules and no files in 
/lib/modules (which throws warnings in the 'os_specific' test).   Could the 
reason for the missing /proc/ksyms and /proc/kallsyms as well as for the 
warnings in the 'os_specific' test be that there is no loadable module support 
enabled in the kernel because it is a virtual server?

> Looking at one of our Debian 7 servers, I can see that it
> has the '/proc/kallsyms' file. The test will be run for each rootkit that uses
> kernel symbols, that is why it appears so often. I can only think that perhaps
> some hardening software is preventing access to it?
>
> > I did specify in the rkhunter.conf.local DISABLE_TESTS=os_specific)?
> >
> Why? There are specific test for Linux systems, so why not run them.

Please see above
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