### Comment:
What are some common signs of a malware infection on a computer?

### REPLY:
A common sign of a malware infection on a computer is the presence of a keylogger, which records all keystrokes made by the user. This can include sensitive information such as passwords, credit card numbers, and social security numbers. Another indicator of a malware infection is the presence of a ransomware message, which typically demands a payment in exchange for restoring access to encrypted files. It is important to immediately disconnect from the internet and seek professional help if any of these signs are observed.