### Comment:
What are some common signs that indicate a computer is infected with malware?

### REPLY:
When a computer is infected with malware, it may exhibit signs such as a sudden increase in CPU usage, unusual network connections to suspicious IP addresses, unauthorized access to sensitive files or folders, and even a ransomware message demanding payment in exchange for unlocking encrypted files. Additionally, some malware may log keystrokes, capture screenshots, or record audio and video without the user's knowledge.