It seems as if malware evolves just as fast as biological diseases anymore. Earlier this year, it was made public that batches of flu vaccine were probably ineffective against this year's upper respiratory plague that I've complained about more than enough lately (my apologies to house Laurelinde, though - Lyssa and I will bring over something tasty soon for you). Around the same time, a new strain of rootkit called Mebroot hit the Net that infects the Master Boot Record of boxen it's installed into. It compromises the machine below the level of the operating system because executable code referenced by …