HELLO v3!!!

app/finders/interesting_findings/multisite.rb

@@ -0,0 +1,29 @@
+module WPScan
+  module Finders
+    module InterestingFindings
+      # Multisite checker
+      class Multisite < CMSScanner::Finders::Finder
+        # @return [ InterestingFinding ]
+        def aggressive(_opts = {})
+          url      = target.url('wp-signup.php')
+          res      = Browser.get(url)
+          location = res.headers_hash['location']
+
+          return unless [200, 302].include?(res.code)
+          return if res.code == 302 && location =~ /wp-login\.php\?action=register/
+          return unless res.code == 200 || res.code == 302 && location =~ /wp-signup\.php/
+
+          target.multisite = true
+
+          WPScan::InterestingFinding.new(
+            url,
+            confidence: 100,
+            found_by: DIRECT_ACCESS,
+            to_s: 'This site seems to be a multisite',
+            references: { url: 'http://codex.wordpress.org/Glossary#Multisite' }
+          )
+        end
+      end
+    end
+  end
+end