Netstat can help you see active network connections and listening ports. It does not prove that a hacker is present by itself, but it can guide a careful security review.
Useful checks
Run netstat from an administrator terminal, compare listening ports against expected services, map process IDs to known applications, and investigate repeated foreign connections you cannot explain.
What to do with suspicious results
Do not delete random files. Disconnect from sensitive accounts, update Windows, run a reputable security scan, review startup apps, and preserve screenshots if the device is tied to fraud or business evidence.
FAQ
Does netstat detect malware?
No. It shows network connections. Use it with endpoint security tools and log review.
What is a listening port?
A listening port means a local service is waiting for connections.
When should I get help?
Get help when suspicious activity involves business systems, money, customer data, or repeated compromise.