What does the script do?
my initial guess was born out by the text and car/sub names:
Drupal Mass Exploiter
my $exploit =
print "Cehck Password And User\n"
$brute = POST ...
... Looks like they are trying to catch Drupal systems that haven't updated the default password. Please edit your post to not contain a prettified version of the hacking script. And here's hoping that people vote reap rather than edit on the consideration