Based on the information provided by the end user, we can infer and logically deduce that: C. The user installed Trojan horse malware.
A malware can be defined as any type of software program or file that is designed and developed to be intentionally harmful to the host computer, server, or network, especially for the purpose of wreaking havoc and destruction.
In Computer technology, a Rootkit is a type of Trojan which refers to a set of tools or software program that is designed and developed to gain access and control of an end user's computer system without revealing its presence.
In conclusion, we can infer and logically deduce that this user installed Trojan horse malware.
Read more on malware here: brainly.com/question/17209742
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Complete Question:
A user used an administrator account to download and install a software application. After the user launched the .exe extension installer file, the user experienced frequent crashes, slow computer performance, and strange services running when turning on the computer. What most likely happened to cause these issues?
A. The user installed adware.
B. The user installed rogueware malware.
C. The user installed Trojan horse malware.
D. The user installed crypto-malware.
