viruses

I wonder what a virus looks like. Maybe this....... Or This...... I got hacked on Facebook and it happened to my work computer. At the end of the day, I check my email, facebook, and other goings on and when I went to facebook, Diane Zamora sent me a you tube video which, when I opened it....ZZZZAP.....I was infected faster than you can say whoooosh. It was very messy. I'm through with You Tube and with Facebook, at least until I fully recover. I feel like I was mugged in the dark. Someone snuck in quickly and invaded my hard drive. Creepy.