### Comment:
What are some common indicators that a system may be infected with malware?

### REPLY:
One clear indicator of a malware infection is the presence of ransom notes or messages demanding a ransom payment to regain access to encrypted files. Another sign is the sudden appearance of explicit or inappropriate content on the screen, indicating the presence of adware or spyware. In some cases, malware can also disable antivirus software or prevent system updates, making it difficult to detect and remove. Additionally, if your computer starts sending out a large number of spam emails or if your online accounts are compromised, it could be a sign of malware infection.