a.exe DOS Boxes

[roadapple]

I am getting multiple DOS boxes opening when I reboot. They are labeled a.exe, b.exe., c.exe, etc. When I delete them then the boxes appear on my C: drive labeled d.exe, e.exe, etc. After I can finally delete all of them my computer runs slow. My IE won't hardly work, and when I click on the IE Icon an IE shortcut appears next to it?

Also, when doing searches and/or going from one page to another on any site I have random windows that open advertising travel, medicine, any number of things.

I've scanned with AVAST 2 times, nothing found. I've ran NoAdware and it finds things but every time I run it they are all back. I ran spybots and it found Media Click or something only. Also now when I go to the NoAdware site using IE, the window closes as soon as it's loaded.

My computer is rapidly becoming unusable.

Does anyone have any idea what this is and where I may have gotten it?

I'm very meticulous normally. When I download anything I scan it before opening, programs, photos, and I never open attachments from anyone without scanning, and I only open attachments from trusted friends.

I appreciate help if someone can provide it!

Thanks.

[Trogan]

Hi roadapple! Sorry for the delay.

Download HJTInstall.exe (http://www.trendsecure.com/portal/en-US/threat_analytics/HJTInstall.exe) to your Desktop.
Doubleclick HJTInstall.exe to install it.
By default it will install to C:\Program Files\Trend Micro\HijackThis .
Click on Install.
It will create a HijackThis icon on the desktop.
Once installed, it will launch Hijackthis.
Click on the Do a system scan and save a logfile button. It will scan and the log should open in notepad.
Save the log to a convenient location as you'll need to post it soon.
Don't use the Analyse This button, its findings are dangerous if misinterpreted.
Don't have Hijackthis fix anything yet. Most of what it finds will be harmless or even required.