chkrootkit - Fedora 9

[Michael Schwendt]

On Thu, 15 May 2008 13:53:25 -0500, Chris wrote:

> Greetings,
> 
> after installing from a F9 DVD, I'm online however, after install
> chkrootkit I get this:
> 
> Checking `asp'... not infected
> Checking `bindshell'... not infected
> Checking `lkm'... find: WARNING: Hard link count is wrong for /proc/1:
> this may be a bug in your filesystem driver.  Automatically turning on
> find's -noleaf option.  Earlier results may have failed to include
> directories that should have been searched. You have     2 process
> hidden for readdir command You have     2 process hidden for ps command
> chkproc: Warning: Possible LKM Trojan installed
> 
> Anyone getting this? or is this a situation where chkrootkit just needs
> to catch up to F9

The warning is reproducible with a simple

  find /proc >/dev/null

so it's something where the /proc virtual file-system causes
problems.


The hidden processes can be examined with

  /usr/lib/chkrootkit-0.48/chkproc -v

and here it looks like they are threads and chkrootkit doesn't
know that.