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Chapter 15
A piece of code that sits dormant for a period of time until some event invokes its payload is known as a__________ | Logic bomb |
A ____________________ is a software or hardware device used to observe trafficas it passes through a network on shared broadcast media. | Sniffer |
An attack that takes advantage of bugs or weaknesses in software is called_______ | Software Exploitation |
____________________ is a type of attack in which data is made to look like it hascome from a different source. | Spoofing |
____________ is the term used to describe attackers attempt to discover unprotected modem connections to computer systems and networks. | Wardialing |
An attack in which the attacker is attempting to deny authorized users accesseither to specific information or to the computer system or network itself is knownas a ____________________ attack. | Denial‐of‐Service |
A_________ is a piece of code that attempts to propagate through penetration of network and computer systems | Worm |
Attacks designed to take control of an already existing session between aclient and a server are called ____________________ or ____________________. | TCP/IP hijacking, session hijacking |
__________ is a term commonly used refer to programs that attackers install AFTER gaining unauthorized access to system to ensure that they can continue to have unrestricted access to that system. | Backdoor |
A ____________________ is a piece of malicious code that replicates by attachingitself to another piece of executable code. | Virus |
A SYN flood is an example of what type of attack? | Denial-of-Service |
An attack in which attackers place themselves in the middle of two otherhosts that are communicating in order to view and/or modify the traffic is known as… | A man‐in‐the‐middle attack |
Which attack takes advantage of a trusted relationship that exists between two systems? | Sniffing |
In what type of attack does an attacker resend the series of commands andcodes used in a financial transaction in order to cause the transaction to beconducted multiple times? | This is the description of a replay attack. |
The trick in both spoofing and TCP/IP hijackings is in trying to_________ | Maintain the correct sequence numbers for the response packets |
The most ominous aspect of the Slammer worm was the fact that… | It spread so quickly, affecting 90 percent of vulnerable systems in less than10 minutes |
The ability of an attacker to crack passwords is directly related to the method the user employee to create the passwords in the first place as well as_____________ | The dictionary and rules used by the cracking program. |
A piece of malicious code that must attach itself to another file in order toreplicate is known as… | A Virus |
A piece of code that attempts to propagate through penetration of network and computer systems is known as_________ | A worm |
An attack in which the attackers attempt to lie and misrepresent themselvesin order to gain access to information that can be useful in an attack is known as what? | Social engineering |
A virus that attempts to avoid detection by periodically modifying portions of itself would be what type of virus? | A polymorphic virus |
The best way to minimize possible avenues of attack for your system is to… | Limit the information that can be obtained on your organization and the services that are run by your Internet‐Visible systems. |
A wardialing attack is an attempt to exploit what technology? | Modems and public switched telephone networks (PSTN's) |
How can you protect against worms of the type that Robert Morris unleashed on the Internet? | Follow the same procedures as you would to secure your system from a human attacker. |
Malicious code that is set to execute its payload on a specific date or at a specific time is known as__________ | A time bomb |