The newbie could start writing his name on all his deliverables. Since he is the one doing all the writing, he should put his name first. If his manager reviews, edits, or polishes the employee's deliverable before sending it up the ladder, then it would be appropriate for the boss to add his name as a contributor *after* the author's name. The same rule applies to documents, slide decks, books, emails, and so on.
Anyone who deletes names in order to steal credit is a thief. And the only person worse than a thief is the one who failed to fire him.
If he can't stand working with thiefs in corporate america, he could always experiment with crooks, pirates, lawyers, and politicians on a more global scale.