transomware-decrypt.rb

require "securerandom"
require "time"

module Transomware	
	@time = Time.parse("2016-11-26 11:35:58 +0800").to_i * 0xff
	def Transomware.random
		r = Random.new(@time)
		r.seed		
		return r.rand(31337)
	end	
	def Transomware.encrypt(file)
		File.open(file, 'rb') do |f|
	  		File.open("#{SecureRandom.hex(3)}.txt", 'wb') do |o|
		    o.write(
		      f.read.bytes.collect do |byte|
		        byte & 255 ^ Transomware.random
		      end.pack("C*")
	    	)
	  		end
		end
		puts "="*50
		puts "HAHAHAHA, file #{file} kena Transomware!"					
	end
end