Malware scanner & .htaccess file

Hello!
Sorry if this topis has aleady been addressed on the forum but I can't find it.
My malware scanner reported suspicious pattern in my .htaccess file. However the code within the file looks normal.
If I'm not mistaken it happened after applying security to HTTP Headers:
- X-Frame Options set to DENY
- MIME attacks - set to YES
- Strict Transport Security - set to YES
- X-Xss Security - set to YES
Malware description: Pattern Referer - .HTACCESS RewriteCond, Found 1 occurence(s), Details: 10

Scanning the file with Metadefender Cloud (both hashes and files) reports no problem.
Can I safely put it in excception list or I should check something else?

Thank you!
Simon

Thank You, Jose!
Simon