B FOR 204 Lecture Notes - Lecture 2: Botnet, Black Market
2 Jun 2018
School
Department
Course
Professor
BFOR 204 – Spring 2018
Lectures 2
Threats and Malicious Software
Threats
• They harm the confidentiality, integrity and availability of computer asset
Kinds of Threats
Threats and Vulnerabilities
• A threat to a computing system is a set of circumstances that could cause harm.
• A vulnerability is a weakness (in the computing system’s procedures, design, or
implementation) that could be exploited to cause harm.
• A vulnerability is exploited to perpetuate an attack. Attacks can be launched by
humans or systems.
• Malwares are malicious software that exploits the vulnerabilities of a system.
Downloading a malware into a computing system is a threat.
Malware
• Malware can be classified into two broad categories:
o Based first on how it spreads or propagates to reach the desired targets
Threat
Threats with
Natural Causes
Threats with
Human Causes
Benign Intent
Malicious Intent
Random
Directed
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