Here is a great way to find out if there is a Trojan or hacker on your computer.
A computer virus called a Trojan can infect your computer. If a hacker enters, the machine will slow down.
Because Trojans, This is because hackers can connect from the Internet to any computer or server you want to access from the Internet.
To do this, you must use a port and a protocol.
The most commonly used is the Transmission Control Protocol (TCP) connection path.
Normal entry and exit numbers are between zero and 1023, but Trojan and other software are used between port 1024 and 49151. Windows will use the built-in Netstat Tools to detect this. If you are using the Internet for the first time, close all browsers and software. Windows Key + R
Click
The Run box will appear.
Type CMD and press Enter. You will be taken to the Command Prompt.
First of all, let's take a look at what's coming out of your computer. At the Command Prompt, type Netstat -a and press Enter. A long text will appear. Look at the picture.
You will see an outgoing IP from your machine as a connection. Even though all the software and browsers are closed on the computer, it is still out of TCP connection.
To view ports by number, type Netstat -an
To find out if a program on your computer is connecting to the Internet, type Netstat -bn at the command prompt.
In the figure below, the avp.exe program is using an external IP address 74.125.236.85 using port number 443 to exit the TCP connection.
So you can use Netstat to find out who and what programs are accessing the Internet.
Reproduced from U Akar Blog
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