Kick rkelly out to a gem, add rkelly-remixed.

rkelly-remixed is a faster fork of rkelly that is more frequently updated
nowadays. With the new gem, jsobfu obfuscates os.js about twice as fast on
my dev environment.

Author: joevennix

Gemfile

@@ -10,6 +10,8 @@ gem 'json'
 gem 'msgpack'
 # Needed by anemone crawler
 gem 'nokogiri'
+# Needed for javascript obfuscation
+gem 'rkelly-remix', '0.0.6'
 # Needed by anemone crawler
 gem 'robots'
 # Needed by db.rb and Msf::Exploit::Capture

Gemfile.lock

@@ -37,6 +37,7 @@ GEM
     pg (0.16.0)
     rake (10.1.0)
     redcarpet (3.0.0)
+    rkelly-remix (0.0.6)
     robots (0.10.1)
     rspec (2.14.1)
       rspec-core (~> 2.14.0)
@@ -76,6 +77,7 @@ DEPENDENCIES
   pg (>= 0.11)
   rake (>= 10.0.0)
   redcarpet
+  rkelly-remix (= 0.0.6)
   robots
   rspec (>= 2.12)
   shoulda-matchers

lib/rex/exploitation/jsobfu.rb

@@ -176,7 +176,7 @@ def obfuscate_r(ast)
             end
           }
           n << '"'
-          node.name = n
+          node.instance_variable_set(:@name, n)
         end
 
       # Variables