CoCalc provides the best real-time collaborative environment for Jupyter Notebooks, LaTeX documents, and SageMath, scalable from individual users to large groups and classes!

1
# -*- coding: binary -*-
2

3
require 'rex/exploitation/jsobfu'
4

5
module Msf
6
  module Exploit::JSObfu
7

8
    def initialize(info={})
9
      super
10
      register_advanced_options([
11
        OptInt.new('JsObfuscate', [false, "Number of times to obfuscate JavaScript", 0]),
12
        OptString.new('JsIdentifiers', [false, "Identifiers to preserve for JsObfu"])
13
      ], Exploit::JSObfu)
14
    end
15

16
    #
17
    # Returns an JSObfu object. A wrapper of ::Rex::Exploitation::JSObfu.new(js).obfuscate
18
    #
19
    # @param js [String] JavaScript code
20
    # @param opts [Hash] obfuscation options
21
    #    * :iterations [FixNum] Number of times to obfuscate
22
    #    * :preserved_identifiers [Array] An array of identifiers to preserve during obfuscation
23
    # @return [::Rex::Exploitation::JSObfu]
24
    #
25
    def js_obfuscate(js, opts={})
26
      iterations = (opts[:iterations] || datastore['JsObfuscate']).to_i
27
      identifiers = opts[:preserved_identifiers].blank? ? (datastore['JsIdentifiers'] || '').split(',') : opts[:preserved_identifiers]
28
      obfu = ::Rex::Exploitation::JSObfu.new(js)
29
      obfu_opts = {}
30
      obfu_opts.merge!(iterations: iterations)
31
      obfu_opts.merge!(preserved_identifiers: identifiers)
32

33
      obfu.obfuscate(obfu_opts)
34
      obfu
35
    end
36

37
  end
38
end
39

40