web shield blocked virus?

Opened facebook this morning, went into my farmville. Started harvesting crops when a pop up warned me. I took a picture of the pop up and this is what it said:

Trojan Horse Blocked
avast! Web Shiled has blocked a harmful webpage or file.

Object: http://…/29927-2.html?
Infection: HTMH:lframe-AMG [Trj]
Process: C:\Users\Kathy\AppData.…\chrome.exe

this is not the only one to appear…I have been getting these this morning, afternoon…my husband cleared out cache completely, did a scan on laptop. But it still appears. I usually use Chrome because Mozilla runs too slow. Is there a way to clear this out? will I have to delete my facebook account and start over? any help is gratefully appreciated. Thanks

not first user reporting the same detection

Reporting to the analyst

Hi kathy. Welcome to Avast! Forums

Similar topic: http://forum.avast.com/index.php?topic=126613.msg950234#msg950234

Is it still alerting ? Report to Avast! as a false/positve: http://www.avast.com/en-us/contacts

Hmmm… It seems that the link is disabled :o Avast! must be working on it. Meanwhile update your Avast! engine and virus definitons.

Hello

Detection was fixed in VPS 130607-1.