Kevin Recently Discovered That Unknown Processes Are Running in the Background

question 38

Multiple Choice

Kevin recently discovered that unknown processes are running in the background on his company's web server. During a performance review, he also noticed that the CPU is working at 80% during downtimes. Kevin believes that software is running in the background and causing the CPU to run at such a high percentage. Kevin discovers that his server along with several other computers in the company have been used to perform a DDoS on another website.  
What type of attack occurred?

• A) Botnet
• B) Spyware
• C) Zero-day
• D) DDoS