Any code or set of instructions specifically designed to damage computer files and/or operation. It can be as simple as locking up a program to erasing the hard drive. While some virus authors create malicious code, the bulk of virus authors just create a virus to see if they can do it, get around a back-door, or exploit a security feature, without including malicious code. One of the reasons why Morris didn't have a harsher punishment for his creation of the Internet Worm was because he did not include malicious code.
Hardware, software, of firmware that is intentionally included in a system for an unauthorized purpose; e.g. a Trojan horse.
A piece of computer code that is programmed to infect a computer system.
Malicious code refers to programs that are written intentionally to carry out annoying or harmful actions. They often masquerade as useful programs or are embedded into useful programs, so that users are induced into activating them. Types of malicious code include Trojan horses and computer viruses.
a set of instructions that run on your computer and make your system do something that an attacker wants it to do
Malicious code includes all and any programs (including macros and scripts) which are deliberately coded in order to cause an unexpected (and usually, unwanted) event on a user's PC.
Any program or piece of code designed to damage a system or to interfere with the manner in which a system was intended to be used.
any code that is intentionally included in software or hardware for an unauthorized purpose
A computer program that is meant to hurt you and your computer. Viruses, worms, and Trojan horses are examples of malicious code.
Malicious code is a general term for programs that, when executed, would cause undesired results on a system. Users of the system usually are not aware of the program until they discover the damage. Malicious code includes Trojan horses, viruses, and worms. Trojan horses and viruses are usually hidden in legitimate programs or files that attackers have altered to do more than what is expected. Worms are self-replicating programs that spread with no human intervention after they are started. Viruses are also self-replicating programs, but usually require some action on the part of the user to spread inadvertently to other programs or systems. These sorts of programs can lead to serious data loss, downtime, denial of service, and other types of security incidents. (From http://www.us-cert.gov/reading_room/tocencyc.html#Malicious)
Hardware, software or firmware that is intentionally introduced to a system for an unauthorized or malicious purpose. A Trojan horse is an example of malicious code.
Malicious code is software designed to damage the user's data, steal information or compromise the ability to use the computer. It is often hidden as a trojan. Malicious code is also known as malware (shortened from mal icious soft ware).
Software that appears to perform a useful or desirable function but actually gains unauthorized access to systems resources, or tricks a user into causing other malicious code to execute.
Software capable of performing an unauthorized process on an information system.
any type of computer code intended to impair, destroy or delete a computer system, network, file or data.
A piece of code designed to damage a system or the data it contains, or to prevent the system from being used in its normal manner.
A term used to either mean a virus, hostile applet or code fragment downloaded from web server or sent directly from one system to another.
Software that fulfills the deliberately harmful intent of an attacker when run. For example, viruses, worms, and Trojan horses are malicious code.
Programmers (hackers) writing deceptive programs that crack computer security and allow them to enter the computer system.
Software or firmware that is intentionally included in a MIS for an unauthorized purpose. See also: Trapdoor, Trojan Horse, Virus, Worm.
Malicious Code refers to software that is intentionally introduced in a system for the purpose of causing loss or damage.