rkhunter reports suspicious files

[Sfetus]

Hello. I am using 10.11.4 El Capitan Os X version and when I run rkhunter, I receive several files reported:

[17:51:29] /opt/local/bin/shasum [ Warning ]
[17:51:29] Warning: The command '/opt/local/bin/shasum' has been replaced by a script: /opt/local/bin/shasum: a /opt/local/bin/perl5.24 script text executable

[17:51:29] Warning: The command '/opt/local/bin/shasum-5.24' has been replaced by a script: /opt/local/bin/shasum-5.24: a /opt/local/bin/perl5.24 script text executable

Warning: The command '/usr/bin/fuser' has been replaced by a script: /usr/bin/fuser: a /usr/bin/perl -w script text executable

[17:53:59] Warning: Hidden file found: /usr/share/man/man5/.rhosts.5: troff or preprocessor input text
​

Does it look like a rootkit or these are the consequences for using a hackintosh where I used various tools to install video card / sound card drives?

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Regards