Every time I try to log in to Site builder tonight I get this virus message from AVG and it will not allow me to proceed

Every time I try to log in to Site builder tonight I get this virus message and block from AVG:JS/Downloader Agent _ Rank this week: No 102 Websites affected: 6 Users affected: 100,000 - 500,000 Affected Operating Systems: All Windows OS JS/Downloader Agent _ Summary JS/Downloader Agent _ is a malicious software that once it is executed has the capability of replicating itself and infect other files and programs. These type of malware, called Viruses,