Are they false ?

[newtusmaximus]

[Highlights from my rkhunter log  scan of just now


15:50:21] Info: Found file '/usr/sbin/adduser': it is whitelisted for the 'script replacement' check.

[15:50:28] Info: Found file '/usr/bin/ldd': it is whitelisted for the 'script replacement' check.

[15:50:34] Warning: The command '/usr/bin/lwp-request' has been replaced by a script: /usr/bin/lwp-request: a /usr/bin/perl -w script, ASCII text executable

[15:50:40] Info: Found file '/bin/egrep': it is whitelisted for the 'script replacement' check.
[15:50:40]  /bin/fgrep                                      [ OK ]
[15:50:41] Info: Found file '/bin/fgrep': it is whitelisted for the 'script replacement' check.

[15:50:44] Info: Found file '/bin/which': it is whitelisted for the 'script replacement' check.

[15:51:55] Info: Found the 'unhide-tcp' command: /usr/sbin/unhide-tcp

[15:51:58] Info: SCAN_MODE_DEV set to 'THOROUGH'
[15:52:01]  Checking /dev for suspicious file types        [ Warning ]
[15:52:01] Warning: Suspicious file types found in /dev:
[15:52:01]          /dev/shm/pulse-shm-331478974: data
[15:52:01]          /dev/shm/pulse-shm-3524711130: data
[15:52:01]          /dev/shm/pulse-shm-1543249499: data
[15:52:01]          /dev/shm/pulse-shm-1019003171: data
[15:52:01]          /dev/shm/pulse-shm-3173629532: data
[15:52:01]          /dev/shm/pulse-shm-3776217293: data
[15:52:01]          /dev/shm/pulse-shm-1763800836: data
[15:52:01]  Checking for hidden files and directories      [ Warning ]
[15:52:01] Warning: Hidden directory found: /etc/.java

[15:52:07] System checks summary
[15:52:07] =====================
[15:52:07]
[15:52:07] File properties checks...
[15:52:07] Files checked: 150
[15:52:07] Suspect files: 1
[15:52:07]
[15:52:07] Rootkit checks...
[15:52:07] Rootkits checked : 365
[15:52:07] Possible rootkits: 0
[15:52:07]
[15:52:07] Applications checks...
[15:52:07] All checks skipped
[15:52:07]
[15:52:07] The system checks took: 1 minute and 56 seconds
[15:52:07]
[15:52:07] Info: End date is Sat Nov 11 15:52:07 GMT 2017

No idea what the significance of the above is.  help please in laypersons terms .