rewrite and filesmatch

Hello.

I've got a question about rewrite and filesmatch working together in
one .htaccess file.

I'm rewriting all the request to '/cgi-bin.*' to main '/'

but various hack scans search for the .pl and .cgi files also in other
directories so I denied all files enging with .pl and .cgi using
<filesmatch> as follows:

<FilesMatch "\.pl|\.cgi$">
Order Deny,Allow
Deny From all
</FilesMatch>

when my server has a request http://server.com/cgi-bin/dir1/dir2/ it
will
be redirected by rewrite

but when the request is:
http://server.com/cgi-bin/dir1/dir2/my_script.pl
<FilesMatch> is being called...(coz of .pl)

and one more question....

about rewrite and queries...

on my Slack I've got request
/_vti_bin/owssvr.dll?UL=1&ACT=4&BUILD=4219&STRMVER=4&CAPREQ= 0

and i redirect them to main page using:
RewriteRule ^_vti_bin.* / [R]

but after redirect i have address of:
http://server.com/?UL=1&ACT=4&BUILD=...VER=4&CAPREQ=0

can i skip somehow the query?

thanks in advance
greetings R