Question

Name and describe the five main categories of malicious software identified in Section 10.1 of the text.

Provide an example of each that differs from the example provided in the text.

Rank these categories from most dangerous to least dangerous, and provide a rationale for your ranking.

Answer 1

Here are the 5 most dangerous malicious software that are available in the internet and can bring huge damage to your infrastructure. On the basic of the damage they bring to the infrastructure, they are ranked in the below ways:

1. Ransomware: This is the most dangerous malware present in the internet as it will be injected into the infrastructure and the malicious software will keep on deleting the important data from the infrastructure and even difficult to detect. So, the attacker demands ransom in order to delete the data from the infrastructure.
2. Viruses: This is another type of malware that also bring severe damage to the infrastructure. The main speciality of these viruses is that they can multiply themselves easily and corrupt the files present in that infrastructure.
3. Trojan: This is another dangerous malicious software which can easily be transferred from one machine to another and this is very difficult to delete. Trojan will collect all the important information present in the infrastructure and send that data to the attacker.
4. SQL injection: This malware is mostly effective against a database. Here the attacker will inject this malicious code into your database and this malicious query will run in your database that can delete, modify or alter the important data present in your database and can easily bring your application down.
5. DDOS attack: This is the lowest ranked malware that is used by attacker to bring the infrastructure down. Here the attacker will flood the application with traffic and thus bring the application down. This is least dangerous.