Your computer will be port scanned several times a day so you have to expect some activity from the firewall. If it's one trojan every time however it's possible that you have a virus in which case you'll need anti-virus software to get rid of it.
This thread is now locked and can not be replied to.
Apple Event as it happened | Apple October Event live blog: Apple unveils new MacBook Pro at…
1995-2015: How technology has changed the world in 20 years
Graeme Messer's exhibition aims to challenge fears and insecurities
New MacBook Pro release date, price and specs | New MacBook Pro 2016 announced: Now with Touch Bar…
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.