rkhunter gives me a warning for "/usr/bin/lwp-request" - what should I do? [Debian 9]

So I just installed and ran *rkhunter* which shows me green OKs / Not founds for everything except for: **/usr/bin/lwp-request**, like so: /usr/bin/lwp-request [ Warning ] In the log it says: Warning: The command '/usr/bin/lwp-request' has been replaced by a script: /usr/bin/lwp-request: Perl script text executable I already ran rkhunter --propupd and sudo apt-get update && sudo apt-get upgrade which didn't help. I installed Debian 9.0 just a few days ago and am a newcomer to Linux. Any suggestions on what to do? ---- **Edit**: Furthermore *chkrootkit* gives me this: The following suspicious files and directories were found: /usr/lib/mono/xbuild-frameworks/.NETPortable /usr/lib/mono/xbuild-frameworks/.NETPortable/v5.0/SupportedFrameworks/.NET Framework 4.6.xml /usr/lib/mono/xbuild-frameworks/.NETFramework /usr/lib/python2.7/dist-packages/PyQt5/uic/widget-plugins/.noinit /usr/lib/python2.7/dist-packages/PyQt4/uic/widget-plugins/.noinit /usr/lib/mono/xbuild-frameworks/.NETPortable /usr/lib/mono/xbuild-frameworks/.NETFramework I guess that's a separate question? Or is this no issue at all? I don't know how to check if these files/directories are ok and needed. **Edit**: Note I once also got warnings for "Checking for passwd file changes" and "Checking for group file changes" even though I didn't change any such afaik. An earlier and later scan showed no warnings - these just showed once. Any ideas?