Information Security · Unit 7
Malware and Cyber Threats
Exam-focused notes for Malware and Cyber Threats (Information Security, BIT303): what the TU syllabus asks and how it has actually been tested, with 6 solved past questions from this unit.
What this unit covers
- Malicious software definition and types
- Viruses, worms and Trojan horses
- Zombies, bots and rootkits
- Phishing attacks
- Countermeasures for malware
- Audit trail analysis
Malicious software definition and types
Define malicious software. Explain the different types of malicious softwares.[10]
Malicious software (Malware) is any software program that is intentionally designed to gain unauthorized access to a computer system, disrupt normal operations, steal sensitive information, or cause damage to hardware, software, or data without the knowledg...
Full solved answer →Describe any two types of malicious software. [5]
--- A computer virus is a malicious program that attaches itself to a legitimate host file or program and replicates when that file is executed. It requires human action (such as running an infected program) to spread. - It self-replicates by inserting copi...
Full solved answer →Zombies, bots and rootkits
Define zombies, rootkits and Trojans. [5]
Note: No specific reference notes were found for this topic. The following answer is based on standard cybersecurity concepts as taught in BSc CSIT curriculum. --- A zombie (also called a bot) is a compromised computer that has been infected by malware and ...
Full solved answer →Define zombies, bots and rootkits. [5]
Note: No specific reference notes were found for this topic. The following answer is based on standard computer security concepts as covered in BSc CSIT curriculum. --- A zombie is a compromised computer that has been taken over by a malicious attacker (oft...
Full solved answer →Countermeasures for malware
What do you mean by countermeasures for malwares? Discuss about audit trail analysis. [5]
Countermeasures for malwares refer to the set of techniques, tools, and practices used to prevent, detect, and respond to malicious software (malware) attacks on computer systems and networks. Category Description ------ Prevention Stopping malware from ent...
Full solved answer →Viruses, worms and Trojan horses
Differentiate between virus, worm and Trojan horse. [5]
Note: Standard computer security concepts are used here as no specific curriculum notes were provided. --- Feature Virus Worm Trojan Horse ------------ Definition A malicious program that attaches itself to a legitimate file/program and spreads when that fi...
Full solved answer →Make Unit 7 stick
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