Malware
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What is a worm?
A piece of malicious software that can self-replicate between computers, either within a network (such as the Internet) or by a user downloading and running and malicious files. Unlike viruses, worms are complete programs - they do not require a host program to cause damage.
What is a virus?
A virus is a small program of self-replicating software that is attached to other program or files Viruses require a host file in which to reside
What is a trojan?
A type of malware that is disguised as a legitimate benign file that users can be tricked into opening They can delete and modify data and allow more malware in once they are opened
How can you prevent malware?
Improving code quality Monitoring Protection
Describe Monitoring measures that can be used to reduce the threat posed by viruses. Give 2 points.
-Firewall could block packets from sources; -Proxy server could receive/check downloaded files;
Describe Protection measures that can be used to reduce the threat posed by viruses.
-Anti-virus; -Enable automatic update of applications;
Describe Code quality measures that can be used to reduce the threat posed by viruses.
-Ensure code does not allow buffer overflow; -Test software for security vulnerabilities;