Q: how to know if my McBook Pro got Trojan or any other virouses?

Check the links below for options to remove the Adware.

The Easy, safe, effective method:

http://www.adwaremedic.com/index.php

If you are comfortable doing manual file removals use the somewhat more difficult method:

http://support.apple.com/en-us/HT203987

Also read the articles below to be more prepared for the next time there is an issue on your computer.

https://discussions.apple.com/docs/DOC-7471

https://discussions.apple.com/docs/DOC-8071

Why are you trying to reset your router? Did you do some tests and determine that the problem is only happening when connected to that router? Did you already try to search for and remove adware?