HijackThis.log

You need to follow some guidelines. HijackThis is the last step not the first. See the stickies on the main page of the Spyware Forum.

Please follow all the steps in this Sticky thread < READ ME FIRST: Basic Spyware, Trojan And Virus Removal > If you already have any of the programs linked in the tutorial please double check your version to make sure you have the latest one and that you have any/all updates for the programs.

NOTE: In order to resolve the issues you are having it is very important that you at least try to perform all the steps as outlined. If you have any difficulty please post back letting us know what steps you have completed, what you found while doing the scans if anything and details about any problems you have encountered in completing the steps. The more details you can provide the better.

NOTE: Per the tutorial in this Sticky thread < Hijack This Tutorial And How To Post Your Log File > your log file file has been removed.

Update! Due to Hijack This logs destroying search engine and web site searches, we now ask you do not post your Hijack This log file unless requested by us. It is for advanced users, so if you do not understand how to use it, you do not need it....yet. Instead, please tell us in your post what symptoms you are experiencing so we can try and resolve it that way. When, and if, we ask you to post your log file, please attach it as a file. To do this save the log file and select manage attachments in a new thread to upload it. All running programs should be closed, including your web browser, e-mail, items in the tray, anything you can close... Close before running Hijack This!

Do not to install Hijack This to the Desktop, a temp folder or choose run from the download. Place it in its own folder, for example C:\Program Files\HJT

But in regards to you McAfee problem, read this from answersthatwork.com:

McAfee Personal Firewall Agent. This background task is responsible for implementing the security services and rules of your McAfee Personal Firewall product.

Recommendation :
Essential to the proper operation of McAfee Personal Firewall – leave alone. Note, however, that MPFAGENT has a tendency to misbehave and run away with CPU resources on some PCs after the installation of Windows 2000/XP Service Packs, so it is a good idea to re-install your McAfee Personal Firewall after the installation of an MS Service Pack and/or update it online with the latest updates.