Identifying the Cause: Troubleshooting High CPU Usage and Network Traffic
Question
A user's computer is running slow even when only one program is open.
A technician discovers the CPU is running at 100%, and there is a significant amount of outgoing network traffic.
Which of the following is MOST likely causing the high resource usage?
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D.B.
The high CPU usage and outgoing network traffic indicate that the computer is likely infected with malware or has been compromised.
Option A, a keylogger, is a type of malware that records keystrokes on a computer, but it usually does not cause high CPU usage or outgoing network traffic.
Option B, a botnet, is a network of compromised computers that are used to carry out various tasks such as sending spam emails or launching DDoS attacks. A botnet infection can cause high CPU usage and outgoing network traffic as the compromised computer is being used to carry out malicious activities.
Option C, a DDoS attack, is a type of attack where multiple systems are used to flood a target system with traffic, causing it to become overwhelmed and unable to function. A DDoS attack typically involves incoming network traffic rather than outgoing, so it is unlikely to be the cause of the symptoms described in the question.
Option D, a software firewall blocking traffic, would not cause high CPU usage or outgoing network traffic. It may limit incoming or outgoing traffic, but it would not cause the computer to become slow.
Therefore, the most likely answer is option B, the computer is part of a botnet. It is important to note that this is a serious security issue that requires immediate attention from a qualified technician to remove the malware and secure the system.
