Creating a check method

modules/exploits/multi/http/churchcrm_install_unauth_rce.rb

@@ -71,15 +71,18 @@ class MetasploitModule < Msf::Exploit::Remote
   end
 
   # Check if the target is up by accessing the setup page
-  def check_if_up
+  def check
     print_status('Checking if the target is reachable...')
+
     res = send_request_cgi({
       'method' => 'GET',
       'uri' => normalize_uri(target_uri.path, 'setup')
     })
     unless res && (res.code == 301 || res.code == 200)
       fail_with(Failure::Unreachable, 'Target is not reachable')
+      return Exploit::CheckCode::Unknown('Target setup page is inaccessible')
     end
+    return Exploit::CheckCode::Appears
     print_good('Target is reachable.')
   end
 
@@ -171,7 +174,6 @@ class MetasploitModule < Msf::Exploit::Remote
   end
 
   def exploit
-    check_if_up
     alter_config
 
     case target.name