JS:Redirector-BOB [Trj] - Infection Detected - Avast! Web shield has detected a

Avast Mac Security
1

JS:Redirector-BOB [Trj] - Infection Detected - Avast! Web shield has detected a treat.
Since this afternoon the following infection has been detected on my imac and every 30 mins or so I have a popup informing me of the following “JS:Redirector-BOB [Trj] - Infection Detected - Avast! Web shield has detected a treat.”
Does any one know if my computer is at risk?
What is the JS:Redirector-BOB [Trj]?
How do I remove the Trojan from my mac.

Help!

2

I am on Windows 8.1 and get this today when I visit mail.com.

Avast is blocking a threat ( perceived) , I checked the page with all the URL/Page checkers I know of, and all say the page is clean.

{Infection Blocked
URL: http://www.website-unavailable.com/?wc
Infection: JS:Redirector-BOB [Trj]

http://www.mail.com/int/ }

You have no infection, avast has blocked what it sees as a threat. Maybe avast is correct, but all the online checks suggest otherwise.

Also read here >> http://forum.avast.com/index.php?topic=144612.msg1048791;topicseen#msg1048791