Disable all browser plug-ins.
Turn off Java Script and all ActiveX controls.
Since it works in both of your browsers I doubt this will fix it. Sounds as though it is a DLL set to be injected into every process at start-up.
If you are using Windows®:
http://memoryhacking.com/download.php#1: This can see processes running on your computer even if they hide themselves and do not appear in Task Manager. Your first task should be to look through the File/Open Process/
All list to see if any processes look strange or if there are any <unknown> processes. You will see 3 <unknown>’s followed by a single process name (while every other process simply has 4 process names). These are processes trying to hide themselves. If MHS is started before the hidden process it is always guaranteed to be in the
All list.
#2: While browsing the list of processes, check window names. Look for AutoIt v3 specifically. It may be msnmsgr.exe or any other normal process name, but actually it is an AutoIt v3 virus that has come out lately in various forms. You may not have this, but using this as an example you should examine the titles of all the windows carefully to be sure they are what they should be.
#3: If you can not find a suspicious process, double-click your browser in the list of processes to open it with MHS. Once MHS is attached to your browser, press Ctrl-D to open the Disassembler. In the Helper window (which is floating at first), you will find an Exports tab. This lists all modules loaded by your browser. Scan this list for oddly named DLL files that shouldn’t be there. If you find one, you can search your drive for it and delete it, or you can enter the file name (including the dot and extension) and try to search for more information on it through Google (assuming you have a way to do that, seeing as that is what is bugged for you right now).
L. Spiro