Iterative DNS Brute Forcing

#!/usr/bin/env ruby### Brute code stolen form: https://gist.github.com/petehamilton/4755855#@domain = 'microsoft.com'def result?(sub)  results = %x(dig +noall #{sub}.#{@domain} +answer)  if results != ""      puts "============================"      puts "FOUND: \t#{sub}"      puts "============================"      puts "#{results}"      puts "============================"  end  1 == 2enddef crack_yielding(chars)  crack_yield(chars){ |p|      return p if result?(p)  }enddef crack_yield(chars)  chars.each { |c| yield c }  crack_yield(chars) { |c|      chars.each do |x|          yield c + x      end  }endchars = ('a'..'z').to_a(0..9).each {|x| chars << x.to_s} crack_yielding(chars)

#!/usr/bin/env ruby### Brute code stolen form: https://gist.github.com/petehamilton/4755855#def result?(sub)  puts sub      1 == 2enddef crack_yielding(chars)  crack_yield(chars){ |p|      return p if result?(p)  }enddef crack_yield(chars)  chars.each { |c| yield c }  crack_yield(chars) { |c|      chars.each do |x|          yield c + x      end  }endchars = ('a'..'z').to_a(0..9).each {|x| chars << x.to_s} crack_yielding(chars)

abcdef...

ruby brutelist.rb | parallel -j100 dig +noall {}.microsoft.com +answer

c.microsoft.com. 2   IN  CNAME   c.microsoft.akadns.net.c.microsoft.akadns.net.   499 IN  A   65.55.58.184e.microsoft.com.  3599    IN  A   191.234.1.50g.microsoft.com.  2798    IN  CNAME   g.msn.com.g.msn.com.        99  IN  CNAME   g.msn.com.nsatc.net.g.msn.com.nsatc.net.  148 IN  A   131.253.34.154i.microsoft.com.  779 IN  CNAME   i.toggle.www.ms.akadns.net.i.toggle.www.ms.akadns.net. 44    IN  CNAME   i.g.www.ms.akadns.net.i.g.www.ms.akadns.net.    225 IN  CNAME   i.microsoft.com.edgesuite.net.i.microsoft.com.edgesuite.net. 116 IN CNAME   a1475.g.akamai.net.a1475.g.akamai.net.   16  IN  A   23.45.65.26a1475.g.akamai.net.   16  IN  A   23.45.65.33m.microsoft.com.  3599    IN  CNAME   origin.mobile.ms.akadns.net.origin.mobile.ms.akadns.net. 299 IN   A   65.55.186.235s.microsoft.com.  3599    IN  CNAME   reroute.microsoft.com.reroute.microsoft.com.    3599    IN  A   65.55.58.201reroute.microsoft.com.    3599    IN  A   64.4.11.37cs.microsoft.com. 81  IN  CNAME   wedcs.trafficmanager.net.wedcs.trafficmanager.net. 7   IN  CNAME   wedcseus.cloudapp.net.wedcseus.cloudapp.net.    8   IN  A   137.116.48.250...