How do I know if a dialer or spy program is running in my computer?

The best way of finding out is to use a good, up-to-date program that detects malware and to carry out a full scan of your computer.

In order to detect dialers, you can also check if the phone number used to connect to the Internet is the one provided by your ISP (Internet Service Provider).

In order to check for spy programs, on the Internet there are lists of all applications that are known to include spyware. Check if any of your applications appear in these lists.