To make sure you are not threaten by the dangerous virus infection, you should get a professional way to check the virus infection on your computer, and remove all of them once detected. A professional antivirus program will be a good choice to scan and remove viruses. And there are plenty of free antivirus programs available on the internet such as Avira Free Antivirus which share good reputation, here is a quick instruction to teach you how to manage such virus issue.
I only subscribed about 2 days ago after coming back to WoW after 6 years. The game has changed so much since I left right around the Cata release. I decided to start fresh on a new server. I still had all my old links and logins to places like Curse, WowInterface, etc. Loaded up all the addons I had favorited years ago (of the maybe 1/3rd that were still maintained). Got to level 20 in a few hours of playing. Had to look a bunch of stuff up.
To make it easier to level professions to 800, most recipes will stay orange for 20 more points. This is a huge change! For example, the blacksmithing 780-800 part needed around 120 Demonsteel Bar and 60 Blood of Sargeras at minimum to craft 30 Waistguard. (you probably needed to craft 50 if you were unlucky). But now you will only need 20 Demonsteel Bar and 10 Blood of Sargeras to craft 5 of them.
REALM FORUMS Defias Brotherhood / Ravenholdt et al. Shattered Halls / Sunstrider et al. Twilight's Hammer / Agamaggan et al. Aerie Peak / Bronzebeard Aggra / Grim Batol Aggramar / Hellscream Al'Akir / Skullcrusher / Xavius Alonsus / Anachronos / Kul Tiras Arathor / Hellfire Argent Dawn Aszune / Shadowsong Auchindoun / Dunemaul / Jaedenar Azjol-Nerub / Quel'Thalas Azuremyst / Stormrage Blade's Edge / Eonar / Vek'nilash Bladefist / Frostwhisper / Zenedar Bloodfeather / Burning Steppes / Executus / Kor’gall / Shattered Hand Bloodhoof / Khadgar Bronze Dragonflight / Nordrassil Burning Blade / Drak’thul Burning Legion Chamber of Aspects Darkmoon Faire / Earthen Ring Darksorrow / Genjuros / Neptulon Darkspear / Saurfang / Terokkar Doomhammer / Turalyon Draenor Dragonblight / Ghostlands Dragonmaw / Haomarush / Spinebreaker / Stormreaver / Vashj Emerald Dream / Terenas Frostmane Kazzak Kilrogg / Nagrand / Runetotem Lightbringer / Mazrigos Magtheridon Moonglade / Steamwheedle Cartel / The Sha'tar Outland Ragnaros Ravencrest Silvermoon Stormscale Sylvanas Tarren Mill / Dentarg The Maelstrom / Deathwing / Karazhan / Lightning's Blade Thunderhorn / Wildhammer Twisting Nether