Many twitter handles that end in an 8 digit sequence that is not in a date format are fake accounts with computer generated handles. For example, if the account name is James Bundy and his twitter handle is @Jamesbu04926114 you may have a bot on your hands.

5. The account has a significant number of foreign accounts as followers even though the account is only sending out content related to a completely different country. The same pattern is usually found in the accounts that follow the suspected bots.

Our example from our last thread shows these accounts following and being followed by the account "emily" that was tweeting about Al Franken