OK you show 2 there is that all you get?
In case it is an infection run the following
Update your dat files and scan your PC with Virusscan in Safe Mode.
To do this, tap F8 repeatedly while booting up. You'll get a boot screen with choices. Pick Safe Mode. Your PC will boot in a low resolution state as most processes won't be running. Go to "MyComputer" (XP) or "Computer" (Vista), right-click the hard drive and select "Scan" from the drop-down menu. You'll see an extra taskbar icon which will show a progress report if youhover over it.
Then do the following :
- Run the free Mcafee Stinger program from http://vil.nai.com/vil/stinger/ -
Download here latest version of mcafee tool getsusp https://community.mcafee.com/thread/32269
Before you use Getsusp, you should go to this document and also add your email to preferences
and download the PDF file explaining what Getsusp is and how it works, and this document
which downloads the installation guide PDF document.
If you want another opinion, or to be on the safe side, then you can do a scan with the free versions of these tools :
I know for a fact that when you open Google Chrome with multiple tabs, you get another Rundll,
However, it does not use 50% of the CPU.
When Internet Explorer closes down, rundll32 kicks in to perform any clean-up tasks that you've specified in the IE browser settings - deleting temporary files, cookies, add-on data and so on. It should complete those tasks within a short space of time unless you've got a lot of browsing data to delete. If you've got two instances of IE open you'll have one instance of rundll32 for each.
You seem to have a problem with excessive memory use and/or processor time. What's your operating system and version, how much RAM have you got, and what's your processor speed?
I'll have a look in the Microsoft tech forums for anyone else who's reporting this.