Your Avast picked up a threat called JS:Iframe-DHY
[Trj]? Even though you try to do a full scan with your antivirus programs, JS:Iframe-DHY
[Trj] is found all the time? cannot know to remove JS:Iframe-DHY [Trj] from
your computer? Continue to read this page, you will get a good anwser.
Threat's profile about JS:Iframe-DHY [Trj]
Name of the threat: JS:Iframe-DHY [Trj]
Command or file name: 50-100
Threat type: Trojan
Affected OS: Win32 (Windows XP, Vista,
Seven, 8)