Which statement correctly separates a bot, a flooder and a backdoor?

Answer

The bot is the compromised machine, the flooder is a tool it runs, the backdoor is an access mechanism

Options - A. The bot is the compromised machine, the flooder is a tool it runs, the backdoor is an access mechanism - B. The bot is a tool, the flooder is the compromised machine, the backdoor is a payload class - C. All three are propagation mechanisms on the two-axis classification - D. The bot and the flooder are the same thing; the backdoor is what installs them Why - A. Correct — three different kinds of thing: a platform, a tool, and a way back in. Collapsing them is the single most common error on the terminology list. - B. Exactly reversed for the first two, and a backdoor is a specific mechanism within the stealthing payload class rather than the class itself. - C. None of them is a propagation mechanism. The three propagation mechanisms are infected content, vulnerability exploitation and social engineering. - D. A bot is the machine and a flooder is the traffic generator, so they are not the same thing. And a backdoor is a way in, not an installer.

Stallings & Brown, Computer Security 5e, ch6 §6.6–§6.9