Trouble identifying my virus or malware

Hello,
I cannot connect to any other web site except my bank web site...so I cannot connect to a web site to download a winsock fix. I obviously have connectivity but some bug/virus/malware is keeping me from internet access other then my 'Bank' web site.
I ran my malware/anti-malware scan and no malware was detected and when I try to run a full security scan and it freezes at 18%
suggestions please......I'm sending this message request via my Mac