| Remote administration types are an
example of one kind of {{U}}(71) {{/U}}malicious software, the Trojan
horse, or more simply Trojan. The purpose of these programs isn't replication,
{{U}}(72) {{/U}}to penetrate and control. That masquerade as one thing
when in fact they are something else, usually something destructive. There are a
number of kinds of Trojans, including spybots, {{U}}(73) {{/U}} report
on the Web sites a computer user visits, and keybots or keyloggers, which record
and report the user's keystrokes in order to discover passwords and other
confidential information. RATS attempt to give a remote intruder administrative control of an infected computer. They work as {{U}}(74) {{/U}}pairs. The server resides on the infected machine, while the client resides elsewhere, across the network, where it's available to a remote intruder. Using standard TCP/IP or UDP protocols, the client sends instructions to the server. The server does {{U}}(75) {{/U}} it's told to do on the infected computer. |