#!/usr/bin/perl

use 5.008;
use strict;
use warnings;

use locale ':not_characters';

my @words = (
        'ルイビトン!', 
        'ルイビトン', 
        'V1$gRa!',
        'Viagra',
        'интернет!',
        'товары',
);

while (my $line = <DATA>) {
        for my $spamword (sort @words) {
                print ($line =~ /\b\Q$spamword\E\b/i ? "Spam: $spamword -> $line" : '');
        }
}

__END__

__DATA__
CAT & CATZE
 ルイビトン
 ルイビトン!
  8I_Iy ViAGra!
         Test.Toast                      
                 интернет!
Perl's son is not Tim Towdy!